{
  "response": {
    "Key": "CHI-CHS",
    "orig": {
      "code": "CHI",
      "type": "airport",
      "city": "Chicago",
      "fullCity": "Chicago, Illinois",
      "airport": "Dupage County"
    },
    "dest": {
      "code": "CHS",
      "type": "airport",
      "city": "Charleston",
      "fullCity": "Charleston, South Carolina",
      "airport": "Charleston Air Force Base-Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Chicago to Charleston?",
        "answer": "The flight from Chicago to Charleston is about 745 miles, with a typical nonstop duration of 2 hours and 14 minutes. The return flight averages 2 hours and 29 minutes, so the westbound leg is about 15 minutes longer.",
        "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 Chicago to Charleston?",
        "answer": "Yes, nonstop flights from Chicago to Charleston run daily on American, United, and Southwest. American and United fly from O'Hare with up to 85 weekly departures combined (American also has a less-frequent mainline schedule on Monday, Thursday, Friday, Saturday, and Sunday), while Southwest serves Midway with 35 weekly flights. The typical flight time is about 2 hours 14 minutes.",
        "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 Charleston?",
        "answer": "Charleston International Airport (CHS) is about 12 miles northwest of downtown. Taxis and rideshares like Uber and Lyft are readily available, with the ride taking roughly 20 minutes. CARTA's public bus Route 11 also serves the airport, though it's less direct and runs on a limited schedule. Most travelers opt for rideshare or taxi for their convenience and speed. Rental cars are also an option, with several agencies on-site.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://iflychs.com/nonstopdestinations/",
            "title": "Airlines & Flights - Charleston International Airport (CHS)",
            "favicon": "https://iflychs.com/wp-content/uploads/2025/05/CHS_favicon-300x300.png",
            "time_published": "2025-02-28T11:23:19Z"
          },
          {
            "url": "https://iflychs.com/nonstopdestinations/?filter=international",
            "title": "Airlines & Flights - Charleston International Airport (CHS)",
            "time_published": "2026-02-18T13:50:18Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Charleston_Airport_(disambiguation)",
            "title": "Charleston Airport (disambiguation)",
            "time_published": "2019-05-13T22:30:51Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/KCHS",
            "title": "KCHS",
            "time_published": "2025-05-20T22:41:56Z"
          },
          {
            "url": "https://iflychs.com/passengers/why-choose-chs/",
            "title": "Why Choose CHS - Charleston International Airport (CHS)",
            "time_published": "2025-07-03T17:44:52Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Chicago to Charleston?",
        "answer": "The cheapest time to fly from Chicago to Charleston is September, when average fares drop to about $330, followed closely by January at $332 and February at $347. December is the most expensive month at $413, with June and March also on the pricier side around $384–$389.",
        "methodology": "This seasonal price baseline is a 365-day daily curve of typical round-trip fares for the route, precomputed monthly in-house from Priceline's own air booking-summary archive (the same data that backs the site), not a third party. For each calendar day we take a representative round-trip fare — a blend of the 25th-percentile and average ticket price over the route's bookings — and Gaussian-smooth the series so it reads as a clean seasonal trend rather than day-to-day noise. Thin and international routes are neighbor-filled: the seasonal shape is borrowed from the nearest dense routes (by origin-and-destination great-circle distance) with the price level anchored to the route's own bookings, so a sparse route still shows a plausible curve. It reflects current fares and is refreshed monthly.",
        "toolsUsed": [
          "seasonal_prices"
        ]
      },
      "q5": {
        "question": "How far in advance should I book tickets from Chicago to Charleston?",
        "answer": "For Chicago to Charleston, the optimal booking window is about 4 to 7 weeks before departure, when fares average around $285. The single cheapest lead time is roughly 35 days out at $283, while booking 6 months ahead costs about $488 — and summer or holiday periods typically push prices higher, so aim for the 4-7 week sweet spot rather than booking last-minute.",
        "methodology": "This booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. It expresses the typical round-trip fare as a function of how many days before departure a trip is booked — from about 180 days out down to the day of departure — aggregating the route's bookings by advance-purchase days and Gaussian-smoothing the curve the same way as the seasonal baseline. From that curve we highlight the stretch of lead times with the lowest average fare as the suggested booking window. Thin and international routes are neighbor-filled from the nearest dense routes, with the price level anchored to the route's own bookings. It reflects current fares and is refreshed monthly.",
        "toolsUsed": [
          "booking_timing"
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Chicago to Charleston?",
        "answer": "Yes, overnight red-eye flights are available from Chicago to Charleston. Southwest operates nonstop red-eyes from Chicago Midway (MDW) to Charleston (CHS) four times a week — on Monday, Thursday, Friday, and Sunday — with departures around 9:00 PM to 9:50 PM. These flights depart late evening and land before midnight, arriving the same night.",
        "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"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Chicago and Charleston?",
        "answer": "Common layover cities for this domestic route include Atlanta, Charlotte, and Dallas, which offer frequent connections and efficient transfers. Atlanta and Charlotte are major hubs for Delta and American Airlines respectively, providing broad domestic networks and short connecting times. Dallas can also be competitive, especially on American Airlines itineraries. Visa‑free transit is irrelevant for this domestic route."
      },
      "q9": {
        "question": "How reliable are on‑time arrivals on this route from Chicago to Charleston?",
        "answer": "On the Chicago to Charleston route, arrival on-time performance ranges from 77.4% to 91.2% depending on the carrier. Republic Airways (operating for American and United) leads at 91.2%, followed by American at 79.2%, United at 78.7%, Envoy (for American) at 77.5%, and Southwest at 77.4%. Cancellation rates are low, from 0.0% for American to 2.0% for Envoy.",
        "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 Charleston?",
        "answer": "March to May and September to November offer pleasant temperatures and fewer tourists."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Chicago to Charleston?",
        "answer": "For domestic U.S. flights, bring a Real ID or passport, ensure the name matches your ticket and carry payment for baggage and any required health documents."
      },
      "q12": {
        "question": "Which airport should I use in Charleston?",
        "answer": "Charleston International Airport is the only commercial airport serving the city. It is located about 12 miles northwest of downtown Charleston and offers direct access to the historic district and nearby beaches. Major carriers include Delta, American, United, and Southwest, with a mix of domestic routes and a few seasonal international flights."
      },
      "q13": {
        "question": "How do I get to Dupage County from the city center?",
        "answer": "From downtown Chicago to O'Hare, the CTA Blue Line 'L' train is the fastest and most popular option, with a station right at the airport and frequent service. Metra commuter rail also serves O'Hare via the North Central Service line, though it runs less often. Rideshare, taxis, and shuttle buses are widely available and offer door-to-door convenience at a higher cost than public transit. Driving and parking at the airport is straightforward with hourly, daily, and economy lots, but traffic on the Kennedy Expressway can be unpredictable.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flychicago.com/ohare/tofrom/pages/default.aspx",
            "title": "Getting To and From O'Hare International Airport | Chicago O’Hare International Airport (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://www.flychicago.com/ohare/map",
            "title": "Map | Chicago O’Hare International Airport (ORD)",
            "time_published": "2026-05-27T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation_in_Chicago",
            "title": "Transportation in Chicago",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-05-15T02:56:07Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation%20in%20Chicago",
            "title": "Transportation in Chicago",
            "time_published": "2026-04-13T06:59:09Z"
          },
          {
            "url": "https://faa.gov/regulations_policies/orders_notices/index.cfm/go/document.information/documentID/6111",
            "title": "Order  3330.39 - Chicago/o'hare Airport Traffic Control Tower (ATCT) Staffing PChicago/o'hare Airport Traffic Control Tower (ATCT) Staffing Plan (Cancelled)",
            "time_published": "2026-04-10T00:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Charleston airport?",
        "answer": "Charleston International Airport (CHS) does not have an on-site hotel, capsule hotel, or sleeping pods inside the terminal. Nearby hotels such as the Courtyard North Charleston Airport/Coliseum and Fairfield Inn & Suites Charleston Airport/Convention Center offer complimentary shuttle service to and from the airport.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.sleepinginairports.net/guides/charleston-airport-guide.htm",
            "title": "Charleston Airport Guide",
            "time_published": "2024-08-26T00:00:00Z"
          },
          {
            "url": "https://iflychs.com/charleston-international-airport",
            "title": "Charleston International Airport - Charleston International Airport (CHS)",
            "favicon": "https://iflychs.com/wp-content/uploads/2025/05/CHS_favicon-300x300.png",
            "time_published": "2025-02-28T11:41:24Z"
          },
          {
            "url": "https://iflychs.com/business/contact-us",
            "title": "Contact Us - Charleston International Airport (CHS)",
            "favicon": "https://iflychs.com/wp-content/uploads/2025/05/CHS_favicon-300x300.png",
            "time_published": "2025-02-28T11:31:36Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/chscn-courtyard-north-charleston-airport-coliseum/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0",
            "title": "Hotels Near CHS Airport | Courtyard",
            "time_published": "2023-08-11T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/chscs-fairfield-inn-and-suites-charleston-airport-convention-center/overview/",
            "title": "Fairfield Inn & Suites Charleston Airport/Convention Center - Near CHS",
            "time_published": "2023-08-11T00:00:00Z"
          },
          {
            "url": "https://iflychs.com/passengers/amenities-lounge/",
            "title": "Amenities & Lounge - Charleston International Airport (CHS)",
            "time_published": "2026-02-11T16:54:38Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Charleston Air Force Base-Intl Airport?",
        "answer": "Charleston International Airport (CHS) does not have a dedicated currency exchange office, but two ReadySTATION cash-to-card kiosks in ticketing can convert cash to a prepaid Visa card for a $5 fee. Prayer rooms or chapels are not listed among the airport's amenities. Free Wi-Fi is available throughout the terminal.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://iflychs.com/passengers/terminal-map/",
            "title": "Terminal Map - Charleston International Airport (CHS)",
            "time_published": "2025-06-27T13:54:16Z"
          },
          {
            "url": "https://iflychs.com/passengers/amenities-lounge/",
            "title": "Amenities & Lounge - Charleston International Airport (CHS)",
            "time_published": "2026-02-11T16:54:38Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Charleston_Airport_(disambiguation)",
            "title": "Charleston Airport (disambiguation)",
            "time_published": "2019-05-13T22:30:51Z"
          },
          {
            "url": "https://en.wikipedia.org/w/index.php?printable=yes&title=Joint_Base_Charleston",
            "title": "Joint Base Charleston",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2013-01-27T00:08:12Z"
          },
          {
            "url": "https://iflychs.com/charleston-international-airport",
            "title": "Charleston International Airport - Charleston International Airport (CHS)",
            "favicon": "https://iflychs.com/wp-content/uploads/2025/05/CHS_favicon-300x300.png",
            "time_published": "2025-02-28T11:41:24Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Chicago to Charleston?",
        "answer": "The most common aircraft on nonstop flights from Chicago to Charleston are the Boeing 737-800, flown by Southwest, American, and United, along with the Embraer 175 on American and the Boeing 737-700 and Airbus A319 on United. On connecting itineraries, the Boeing 737 MAX 8, Airbus A321, and Boeing 737-800 appear frequently as the long-leg aircraft, typically routing through Charlotte, Baltimore, or Nashville. The exact aircraft can vary by day and airline, and Wi-Fi and seatback entertainment are widely available across these fleets.",
        "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"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Chicago?",
        "answer": "At Chicago O'Hare (ORD), the best lounge options depend on your terminal and airline. United has several United Clubs in Terminals 1 and 2, plus a Polaris Lounge in Terminal 1 for international premium cabin travelers. American Airlines offers Admirals Clubs in Terminal 3 and a Flagship Lounge for premium passengers. Delta has a Sky Club in Terminal 5, and other options in Terminal 5 include the Air France Lounge, Wingtips Lounge, and Swissport Lounge, all accessible with eligible status, business class tickets, or membership programs like Priority Pass.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.flychicago.com/ohare/ServicesAmenities/services/Pages/lounges.aspx",
            "title": "Airline Lounges | Chicago O’Hare International Airport (ORD)",
            "time_published": "2026-05-29T00:00:00Z"
          },
          {
            "url": "https://www.delta.com/us/en/airports/united-states/chicago-sky-club-airport-map",
            "title": "Chicago O'Hare (ORD) Airport Map & Lounges | Delta Air Lines",
            "time_published": "2022-11-18T00:00:00Z"
          },
          {
            "url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/ohare-international/ord10-swissport-lounge",
            "title": "Swissport Lounge ORD AIRPORT Terminal 5 O'Hare International | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-ca/travel/lounges/the-platinum-card/ORD",
            "title": "American Express Lounges at O'Hare International Airport | Amex CA",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "http://www.americanexpress.com/en-us/travel/lounges/the-platinum-card/ORD/Swissport-Lounge-Terminal-5-Concourse-M-5mTKilCqDl/",
            "title": "Swissport Lounge at O'Hare International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Chicago to Charleston?",
        "answer": "On this domestic route, basic economy often limits you to a personal item only, with carry‑on and checked bags available for a fee. Standard economy typically includes a carry‑on and personal item, but checked bags usually incur extra charges. Premium classes generally offer more inclusive allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Chicago to Charleston?",
        "answer": "On this domestic route, you'll typically find only Economy class, with no Premium Economy or flat-bed Business seats available."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Same‑day change and standby rules depend on the airline and fare class; flexible and premium tickets often allow free or low‑cost changes, while Basic Economy rarely does."
      }
    }
  }
}