{"response": {"Key": "IAH-CLT", "orig": {"code": "IAH", "type": "airport", "city": "Houston", "fullCity": "Houston, Texas", "airport": "George Bush Intercontinental Airport"}, "dest": {"code": "CLT", "type": "airport", "city": "Charlotte", "fullCity": "Charlotte, North Carolina", "airport": "Douglas Intl Airport"}, "faq": {"q0": {"question": "What is the typical flight duration from Houston to Charlotte?", "answer": "The flight from Houston to Charlotte is about 910 miles and typically takes 2 hours 39 minutes. The return leg is slightly longer at 2 hours 45 minutes.", "methodology": "Carrier service, flight times and distances for this route come from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.", "toolsUsed": ["flight_schedule"]}, "q1": {"question": "Are there any direct flights from Houston to Charlotte?", "answer": "Yes, there are direct non‑stop flights from Houston (IAH) to Charlotte (CLT). American Airlines and United both offer daily service, while Frontier flies the route on Mondays, Fridays, and Sundays. Together they provide roughly 80 weekly non‑stop flights, with American operating the most — around 53 per week — and United about 20, plus Frontier's three weekly departures.", "methodology": "Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours. Carrier service, flight times and distances for this route come from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.", "toolsUsed": ["route_airlines", "flight_schedule"]}, "q3": {"question": "What are the ground transportation options in Charlotte?", "answer": "At Charlotte Douglas, you can catch a taxi curbside on the arrivals level (attendant on duty until 12:15 a.m.), use ride‑share apps from a designated pickup zone, or rent a car from multiple on‑site agencies. The CATS Sprinter bus offers direct mass‑transit service from the airport to uptown Charlotte. Ride‑sharing and taxis are the most common choices for speed and convenience, while the Sprinter is the most used public‑transit option.", "toolsUsed": [], "references": [{"url": "https://www.cltairport.com/to-and-from/", "title": "Ground Transportation - Charlotte Douglas International Airport", "time_published": "2026-04-07T00:00:00Z"}, {"url": "https://cltairport.com/airport-info/accessibility/accessible-parking/accessible-ground-transportation/", "title": "Accessible Ground Transportation - Charlotte Douglas International Airport", "favicon": "https://cltairport.com/cltairport.png", "time_published": "2026-03-09T15:43:51Z"}, {"url": "https://en.wikipedia.org/wiki/Transportation%20in%20Charlotte%2C%20North%20Carolina", "title": "Transportation in Charlotte, North Carolina", "time_published": "2026-03-21T17:16:29Z"}, {"url": "https://en.wikipedia.org/wiki/Transportation_in_Charlotte,_North_Carolina", "title": "Transportation in Charlotte, North Carolina", "time_published": "2026-03-21T17:16:29Z"}, {"url": "https://www.faa.gov/AIR_TRAFFIC/FLIGHT_INFO/AERONAV/PROCEDURES/application/index.cfm?event=directory&directory=69671A4500874A0E99D7298A6E848342-CLT-NDBR&type=ndbr&nasrId=CLT", "title": "USA Banner", "time_published": "2025-06-26T00:00:00Z"}]}, "q4": {"question": "When is the cheapest time to fly from Houston to Charlotte?", "answer": "The cheapest time to fly from Houston to Charlotte is late summer into early fall, with the lowest average fares in August, September, and October, typically around $299 to $316. Prices peak in late spring and around the holidays, with the most expensive months being November, June, and May, where average fares range from $348 to $394.", "methodology": "This 'good deal' estimate shows a representative best price for each departure date across roughly a 12-month window (about 3 months back and 9 months forward). It is built from real flight prices found by Priceline users searching this route, accumulated into a price history for each departure date. Rather than weighting all of that history equally, we apply exponential time decay so recent prices dominate — a price seen yesterday counts almost in full, one from about a month ago roughly a third, and prices from a few months back very little — giving a figure that tracks today's market instead of a stale long-run average. Clear price outliers are removed before any calculation, departure dates with no observations are filled in from nearby dates, and the resulting curve is lightly smoothed so it reads as a clean seasonal trend rather than day-to-day noise.", "toolsUsed": ["seasonal_prices"]}, "q5": {"question": "How far in advance should I book tickets from Houston to Charlotte?", "answer": "For flights from Houston to Charlotte, booking 4 to 7 weeks ahead typically yields the best fares, averaging around $185. The lowest single fare appears about 40 days out at $179, while prices climb sharply beyond 14 weeks, so avoid booking too far in advance. During peak summer and holiday periods, demand can push the optimal window earlier—aim for 6 to 10 weeks ahead to secure a good price.", "methodology": "This booking-window guidance is built from the same real flight prices found by Priceline users searching this route, re-grouped by how many days before departure each price was seen (from the departure day out to about 180 days ahead) across the route's price history. At each booking lead time we report the 25th-percentile price — the cheaper end of what travelers were quoted, rather than the rock-bottom minimum (which can be a fluke) or the average (which is pulled up by expensive last-minute fares). The buy-or-wait advice then applies a risk premium that grows as departure approaches, since seat availability shrinks and prices become less predictable; using that adjusted curve we flag windows where waiting is likely to save a meaningful amount (at least $20 or 5%) versus windows where booking now is the better call. Isolated single-day recommendations are filtered out, so the advice only reflects a window that holds for several days in a row.", "toolsUsed": ["booking_timing"]}, "q6": {"question": "Are overnight (red‑eye) flights available from Houston to Charlotte?", "answer": "No overnight (red-eye) flights operate from Houston (IAH) to Charlotte (CLT) — there are no nonstop red-eyes on this route, and no connecting itineraries with a red-eye long leg were found.", "methodology": "Red-eye flights are identified from scheduled local departure and arrival times in our flight-schedule database — built from published airline timetables and official schedule data, including U.S. Department of Transportation records for domestic routes — flagging services that depart late at night and arrive the following morning; for connecting itineraries the red-eye is based on the timing of the overnight long-haul leg.", "toolsUsed": ["redeye_flights"]}, "q7": {"question": "Which airlines usually operate this route from Houston to Charlotte?", "answer": "American Airlines, United, and Frontier all fly nonstop from Houston to Charlotte. American operates about 53 weekly flights with departures throughout the day, United offers around 21 weekly flights, and Frontier runs 7 weekly flights on select days. Specific median fares aren't available for this route.", "methodology": "Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.", "toolsUsed": ["route_airlines"]}, "q8": {"question": "If I need a connection, what are common layover cities between Houston and Charlotte?", "answer": "Common layover cities between Houston and Charlotte include Atlanta, Dallas, and Nashville. Atlanta offers frequent connections and a large hub for Delta, while Dallas provides a major American Airlines hub with efficient transfers. Nashville serves as a convenient midpoint with a smaller, easy-to-navigate airport."}, "q9": {"question": "How reliable are on‑time departures on this route from Houston to Charlotte?", "answer": "On the Houston (IAH) to Charlotte (CLT) route, American Airlines leads with a 77% on-time departure rate and a 1.5% cancellation rate, while United follows at 76% on-time and 0.8% cancellations. Frontier trails at 67% on-time departures and a 2.5% cancellation rate.", "methodology": "Carrier service, flight times and distances for this route come from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.", "toolsUsed": ["flight_schedule"]}, "q10": {"question": "Which months have the best weather for traveling to Charlotte?", "answer": "April to May and September to October offer pleasant temperatures and fewer tourists."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Houston to Charlotte?", "answer": "As a domestic U.S. flight, bring a Real ID-compliant driver's license or passport, a payment method for baggage fees, and any required health or vaccination documents."}, "q12": {"question": "Which airport should I use in Charlotte?", "answer": "Charlotte Douglas International is the only commercial airport serving the city, located about 7 miles west of downtown."}, "q13": {"question": "How do I get to George Bush Intercontinental Airport from the city center?", "answer": "From downtown Houston, the most direct public transit option is the METRO 102 Bush IAH Express bus, which runs from the downtown transit center to the airport. Ride‑share services like Uber and Lyft, as well as taxis, offer door‑to‑terminal convenience and are the most popular and fastest choices, taking about 25–40 minutes depending on traffic. Shared‑ride shuttles and private sedans are also available for a middle ground in cost and comfort. Driving yourself is straightforward via I‑45 North or the Hardy Toll Road, with several on‑site parking options ranging from economy lots to valet service.", "toolsUsed": [], "references": [{"url": "https://fly2houston.com/iah", "title": "IAH Houston Airport | George Bush Intercontinental", "time_published": "2026-06-23T05:00:00Z"}, {"url": "https://fly2houston.com/iah/ground-transportation/", "title": "Ground Transportation | Airport Taxi, Uber, Lyft, Shuttle & Rent Car Houston", "time_published": "2026-01-23T19:44:20Z"}, {"url": "https://en.wikipedia.org/wiki/George%20Bush%20Intercontinental%20Airport", "title": "George Bush Intercontinental Airport", "time_published": "2026-05-01T12:20:43Z"}, {"url": "https://en.wikipedia.org/?diff=597698305", "title": "George Bush Intercontinental Airport: Difference between revisions - Wikipedia", "time_published": "2014-03-01T18:21:06Z"}, {"url": "https://faa.gov/regulations_policies/orders_notices/index.cfm/go/document.information/documentID/1023367", "title": "Notice JO 7110.659 - Non-Intersecting Converging Runway Operations for George Bush Intercontinental/Houston Airport Traffic Control Tower and Houston Intercontinental Terminal Radar Approach Control (", "time_published": "2026-04-10T00:00:00Z"}]}, "q14": {"question": "Are there hotels or sleeping facilities at Charlotte airport?", "answer": "Charlotte Douglas International Airport (CLT) does not have any on-site hotels, capsule hotels, or sleeping pods within the terminal. The closest hotels are off-airport and require a shuttle, such as the nearby Sheraton or Hampton Inn. For passengers staying overnight inside the terminal, seating is limited to armrest-equipped chairs and hard floors, with a few quiet spots near baggage claim or the pre-security area in Terminal E.", "toolsUsed": [], "references": [{"url": "https://sleepinginairports.net/guides/charlotte-airport-guide.htm", "title": "Charlotte Airport Guide (CLT) - Sleeping in Airports", "favicon": "https://www.sleepinginairports.net/nitropack_static/oBWrHkPujHTPIaVWqdDSDhClXUyrYhhb/assets/images/optimized/rev-b853180/www.sleepinginairports.net/wp-content/uploads/2018/09/cropped-sia-logo-180x180.png", "time_published": "2018-08-03T10:00:01Z"}, {"url": "https://www.sleepinginairports.net/usa/charlotte.htm", "title": "Charlotte Airport Guide (CLT) - Sleeping in Airports", "time_published": "2026-05-29T21:34:13Z"}, {"url": "https://www.cltairport.com/?gad_campaignid=17545523242&gad_source=1&gad_source=1&gbraid=0AAAAACkfogUNMTE5ede2KjCZCTSqIKIBl", "title": "Charlotte Douglas International Airport", "time_published": "2025-05-27T00:00:00Z"}, {"url": "https://www.cltairport.com", "title": "Charlotte Douglas International Airport", "favicon": "https://www.cltairport.com/cltairport.png", "time_published": "2025-05-27T14:52:48Z"}, {"url": "https://activities.marriott.com/north-america/usa/north-carolina/charlotte/activities/charlotte_douglas_airport_clt_to_charlotte_city_round_trip_private_transfer-XBK7GL?property=CLTSA", "title": "Charlotte Douglas Airport (CLT) to Charlotte City - Round-Trip Private Transfer", "time_published": "2026-03-13T00:00:00Z"}, {"url": "https://cltairport.com/airport-info/accessibility/accessible-parking/accessible-parking/", "title": "Accessible Parking - Charlotte Douglas International Airport", "favicon": "https://cltairport.com/cltairport.png", "time_published": "2026-03-04T14:49:31Z"}]}, "q15": {"question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Douglas Intl Airport?", "answer": "Charlotte Douglas International Airport (CLT) offers currency exchange offices, with services and hours expanded based on passenger feedback. There is an interfaith chapel located in the terminal for prayer and meditation. Free Wi‑Fi is available throughout the terminal, along with added charging stations. Approximate terminal locations for these amenities can be found on the airport’s interactive map.", "toolsUsed": [], "references": [{"url": "https://www.cltairport.com/airport-info/website-maps/", "title": "Airport Maps - Charlotte Douglas International Airport", "favicon": "https://www.cltairport.com/cltairport.png", "time_published": "2026-04-07T15:13:05Z"}, {"url": "http://www.cltairport.com/airport-info/services-and-amenities/", "title": "Services & Amenities - Charlotte Douglas International Airport", "favicon": "http://www.cltairport.com/cltairport.png", "time_published": "2022-07-13T15:36:14Z"}, {"url": "https://en.wikipedia.org/wiki/Charlotte_Army_Airbase", "title": "Charlotte Douglas International Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2003-07-10T01:30:25Z"}, {"url": "https://en.wikipedia.org/wiki/Charlotte/Douglas_International_Airport", "title": "Charlotte Douglas International Airport - Wikipedia", "time_published": "2003-07-10T00:00:00Z"}, {"url": "https://www.faa.gov/air_traffic/flight_info/aeronav/procedures/application/index.cfm?event=directory&directory=6AF926197A2A4001802409F21DDE437A-CLT&type=acifp&nasrId=CLT", "title": "USA Banner", "time_published": "2025-06-26T00:00:00Z"}]}, "q16": {"question": "Are there accessible services or children's facilities at the Houston and Charlotte airports?", "answer": "Both Houston (IAH) and Charlotte (CLT) airports offer accessibility services, including accessible parking, ground transportation, and TSA screening assistance. At IAH, travelers with disabilities can find accessible parking on all garage levels and Ecopark shuttles that accommodate wheelchairs; for security assistance, TSA Cares should be contacted at least 72 hours before travel. CLT provides accessible rental cars (request 48 hours in advance), wheelchair-accessible shuttle buses, and taxi service with attendants, while children's play areas are not specifically mentioned in the airport accessibility documentation. To arrange mobility assistance at either airport, contact the respective airport information lines or your airline at least 48 hours in advance.", "toolsUsed": [], "references": [{"url": "https://fly2houston.com/iah/related-content/accessibility-services-at-george-bush-intercontinental-airport", "title": "Accessibility Services at George Bush Intercontinental Airport Your Complete Guide to Accessible Travel at IAH", "time_published": "2026-01-23T00:00:00Z"}, {"url": "https://fly2houston.com/iah/accessibility/accessparking/", "title": "IAH Accessible Parking | ADA Airport Parking at George Bush Intercontinental Airport", "time_published": "2026-01-23T00:00:00Z"}, {"url": "http://faa.gov/air_traffic/flight_info/aeronav/procedures/application/index.cfm?directory=2016122829046303003-IAH-NDBR&event=directory&nasrId=IAH&type=ndbr", "title": "Airport Procedures Information Gateway", "time_published": "2025-12-03T16:08:12Z"}, {"url": "https://en.wikipedia.org/wiki/Skyway_(George_Bush_Intercontinental_Airport)", "title": "Skyway (George Bush Intercontinental Airport)", "time_published": "2026-05-06T01:28:52Z"}, {"url": "http://faa.gov/air_traffic/flight_info/aeronav/procedures/application/index.cfm?directory=420A5D11834944899EE2A389A427CE3C-IAH-NDBR&event=directory&nasrId=IAH&type=ndbr", "title": "Airport Procedures Information Gateway", "time_published": "2025-12-03T16:08:12Z"}, {"url": "https://cltairport.com/airport-info/accessibility/accessible-parking/accessible-ground-transportation/", "title": "Accessible Ground Transportation - Charlotte Douglas International Airport", "favicon": "https://cltairport.com/cltairport.png", "time_published": "2026-03-09T15:43:51Z"}, {"url": "http://www.cltairport.com/airport-info/accessibility/", "title": "Accessibility and Nondiscrimination - Charlotte Douglas International Airport", "favicon": "http://www.cltairport.com/cltairport.png", "time_published": "2026-03-09T15:41:04Z"}, {"url": "https://en.wikipedia.org/wiki/Charlotte_Army_Airbase", "title": "Charlotte Douglas International Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2003-07-10T01:30:25Z"}, {"url": "https://en.wikipedia.org/wiki/Charlotte/Douglas_International_Airport", "title": "Charlotte Douglas International Airport - Wikipedia", "time_published": "2003-07-10T00:00:00Z"}, {"url": "https://www.faa.gov/air_traffic/flight_info/aeronav/procedures/application/index.cfm?event=directory&directory=6AF926197A2A4001802409F21DDE437A-CLT&type=acifp&nasrId=CLT", "title": "USA Banner", "time_published": "2025-06-26T00:00:00Z"}]}, "q17": {"question": "What aircraft are typically used on flights from Houston to Charlotte?", "answer": "Nonstop flights from Houston to Charlotte are typically operated with Embraer 175s, Airbus A321-100s, and Boeing 737-800s, though one airline's aircraft type is unspecified. The exact aircraft can vary by day and airline, but these three models are the most common. Wi‑Fi and seatback entertainment are widely available on this route.", "methodology": "Aircraft types are taken from the equipment each operating carrier schedules on this route, drawn from published airline timetables and airline equipment schedules in our flight-schedule database. They describe typical scheduled aircraft and can vary with seasonal or day-of-week assignments and last-minute equipment swaps.", "toolsUsed": ["route_aircraft"]}, "q18": {"question": "Which airline alliances serve flights from Houston to Charlotte?", "answer": "American Airlines (oneworld) and United Airlines (Star Alliance) fly nonstop from Houston IAH to Charlotte, along with Frontier, which is an unaffiliated low-cost carrier. Other alliances, such as SkyTeam, may offer connecting itineraries on this route but do not operate it nonstop.", "methodology": "Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.", "toolsUsed": ["route_airlines"]}, "q20": {"question": "What are the best airport lounge options when departing from Houston?", "answer": "At Houston's George Bush Intercontinental Airport (IAH), Terminal D houses several premium lounges, including the American Express Centurion Lounge, the Air France Lounge, and the KLM Crown Lounge. The Centurion Lounge is accessible to American Express Platinum and Centurion cardholders, offering chef-designed dining, craft cocktails, and a family room. The Air France Lounge, located near Gate D18B, welcomes business class passengers and Priority Pass members, with a full bar and light meals, but limits stays to three hours. The KLM Crown Lounge provides a sleep pod, spa access, and a restaurant voucher for eligible travelers, typically those in premium cabins or with elite status. Terminal C also features Minute Suites for pay-per-use private rest spaces, though it is not a traditional lounge.", "toolsUsed": [], "references": [{"url": "https://fly2houston.com/iah", "title": "IAH Houston Airport | George Bush Intercontinental", "time_published": "2026-06-23T05:00:00Z"}, {"url": "https://americanexpress.com/en-xb/travel/lounges/the-platinum-card/IAH", "title": "American Express Lounges at George Bush Intercontinental Airport | Amex XB", "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"}, {"url": "https://americanexpress.com/en-us/travel/lounges/delta-reserve/IAH", "title": "American Express Lounges at George Bush Intercontinental Airport | Amex US", "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"}, {"url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/george-bush-intercontinental/iah7-air-france-lounge", "title": "Air France Lounge IAH AIRPORT Terminal D George Bush Intercontinental | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}, {"url": "https://prioritypass.com/lounges/usa/houston-tx-george-bush-intercontinental/iahm-united-club", "title": "George Bush Intercontinental Airport - Houston IAH Lounges - IAH Airport Guide and lounges.  | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}]}, "q21": {"question": "What is the baggage allowance on this route from Houston to Charlotte?", "answer": "Baggage rules differ by airline. Basic economy often restricts carry-on to a personal item and charges for checked bags, while standard economy usually includes one carry-on and a personal item, with checked bag fees."}, "q22": {"question": "What cabin and seat options are typical from Houston to Charlotte?", "answer": "Flights from Houston to Charlotte typically offer Economy and sometimes a larger front cabin seat, but flat‑bed Business and Premium Economy are not common on this domestic route."}, "q23": {"question": "Are same‑day changes or standby possible on this route?", "answer": "Same‑day change and standby eligibility vary by airline and fare; flexible and premium tickets typically offer more options, while Basic Economy rarely allows it."}}}}