{
  "response": {
    "Key": "BNA-CHI",
    "orig": {
      "code": "BNA",
      "type": "airport",
      "city": "Nashville",
      "fullCity": "Nashville, Tennessee",
      "airport": "Nashville Intl Airport"
    },
    "dest": {
      "code": "CHI",
      "type": "airport",
      "city": "Chicago",
      "fullCity": "Chicago, Illinois",
      "airport": "Dupage County"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Nashville to Chicago?",
        "answer": "The flight from Nashville to Chicago is about 400 miles. Nonstop flights typically take 1 hour 47 minutes, while the return leg is a shorter 1 hour 30 minutes due to prevailing winds.",
        "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 Nashville to Chicago?",
        "answer": "Yes, there are nonstop flights from Nashville (BNA) to Chicago. Southwest flies up to 169 weekly flights to Midway (MDW), while American and United together offer around 200 weekly flights to O'Hare (ORD), all operating daily. A few additional nonstops run on Frontier (ORD, Mon/Wed/Fri/Sun) and Allegiant (Rockford RFD, Mon/Thu/Fri/Sun).",
        "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"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in Chicago?",
        "answer": "From Chicago O'Hare, the CTA Blue Line offers direct, affordable train service to downtown in about 40–45 minutes and is the most-used option. Taxis, limos, and rideshares like Uber and Lyft are readily available for a faster, door-to-door trip, though they cost more and can be slowed by traffic. Several rental car companies operate on-site, and regional shuttles serve suburbs and nearby states. The Blue Line is generally the best balance of speed and value for reaching the city center.",
        "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"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Nashville to Chicago?",
        "answer": "The cheapest months to fly from Nashville to Chicago are October, April, and August, with average fares around $238–$270, while June, July, and March are the most expensive, averaging $285–$293.",
        "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 Nashville to Chicago?",
        "answer": "For the best fare from Nashville to Chicago, book 4 to 6 weeks before departure, when average prices are around $138. The lowest price appears about 40 days out at $134, while booking too early (150 days ahead) can cost $286. Summer and holiday periods likely require booking even earlier, as demand pushes prices higher than the typical window.",
        "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 Nashville to Chicago?",
        "answer": "Yes, overnight red-eye flights are available from Nashville (BNA) to Chicago (CHI). Southwest operates nonstop red-eyes from BNA to Chicago Midway (MDW) daily, with departures clustered between roughly 9:15 PM and 10:45 PM. These flights are short hops that land before midnight the same evening, typically around 11:30 PM to 12:30 AM, so they arrive late the same night rather than the next morning.",
        "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 Nashville to Chicago?",
        "answer": "Southwest, American, and United are the main non‑stop carriers from Nashville to Chicago, with Southwest offering 169 weekly flights to Midway, American and United together providing around 300 weekly flights to O’Hare (including regional operations by SkyWest, Republic, and Envoy). Frontier also flies non‑stop to O’Hare a few times a week, and Allegiant serves Rockford with limited non‑stop service. Median fares are not available for this route, but the high frequency keeps options plentiful.",
        "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"
        ]
      },
      "q9": {
        "question": "How reliable are on‑time arrivals on this route from Nashville to Chicago?",
        "answer": "On the Nashville to Chicago route, Southwest is the most reliable with 81.6% of flights arriving on time and a cancellation rate of just 0.4%. United and Republic (operating for United and American) follow at 78.7%, while Frontier lags at 61.3%.",
        "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 Chicago?",
        "answer": "Late May through June and September offer comfortable temperatures and fewer tourists than midsummer."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Nashville to Chicago?",
        "answer": "Bring a valid Real ID or passport for domestic travel within the U.S., and have a payment method ready for any baggage fees. No visa, vaccination certificate, or proof of onward travel is required for this route."
      },
      "q12": {
        "question": "Which airport should I use in Chicago?",
        "answer": "O'Hare is the primary international hub with the most flights and connections. Midway is closer to downtown and mainly serves domestic low-cost carriers like Southwest."
      },
      "q13": {
        "question": "How do I get to Nashville Intl Airport from the city center?",
        "answer": "From downtown Nashville, you can reach the airport by public bus on Route 18, a taxi (typically $25 and about 15 minutes), ride‑share, hotel or private shuttles, and rental car. The bus is the most budget‑friendly, while a taxi or ride‑share is the fastest and most popular door‑to‑door option. Shuttles offer a middle ground, and driving yourself means paying for parking.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.nashville-airport.com/transportation.php",
            "title": "Nashville Airport Transportation",
            "time_published": "2024-01-01T00:00:00Z"
          },
          {
            "url": "https://www.nashville-airport.com/bna-departures-airline-southwest-airlines",
            "title": "Southwest Airlines Departures from Nashville Airport (BNA)",
            "time_published": "2024-09-12T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/BNA%20Records",
            "title": "BNA Records",
            "time_published": "2025-12-19T01:26:45Z"
          },
          {
            "url": "https://en.wikipedia.org/w/index.php?mobileaction=toggle_view_mobile&title=BNA_Records",
            "title": "BNA Records",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2025-12-19T01:26:45Z"
          },
          {
            "url": "https://www.nashville-airport.com/shuttle.php",
            "title": "Nashville Airport Shuttle",
            "time_published": "2025-01-01T00:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Chicago airport?",
        "answer": "Chicago O'Hare Airport has no on-site hotel, capsule hotel, or sleeping pods inside the terminals, but the nearby SpringHill Suites Chicago O'Hare offers rooms and a free shuttle that picks up at Terminal 2 arrivals/lower level, door 2C. Other hotels such as the Chicago Marriott Suites O'Hare in Rosemont are also connected by shuttle. For those staying in the terminal, the best rest spots are airside couches in Concourse K, lounge chairs in Terminal 3 near Gates H, and circular sofas just past security in Terminal 5.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://sleepinginairports.net/guides/chicago-ohare-airport-guide.htm",
            "title": "Chicago O'Hare Airport Guide (ORD) - 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": "2018-08-08T19:18:20Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/chico-springhill-suites-chicago-ohare/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0",
            "title": "Hotel near O'Hare Airport with Free Shuttle | Springhill Suites",
            "time_published": "2025-02-19T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/chico-springhill-suites-chicago-ohare/overview/",
            "title": "Hotel near O'Hare Airport with Free Shuttle | Springhill Suites Chicago O'Hare",
            "time_published": "2023-08-11T00:00:00Z"
          },
          {
            "url": "https://www.sleepinginairports.net/sleep-guide/sleeping-in-chicago-ohare-airport.htm",
            "title": "Sleeping in Chicago O’Hare Airport",
            "time_published": "2024-09-12T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/O%27Hare%20International%20Airport",
            "title": "O'Hare International Airport",
            "time_published": "2026-04-30T12:30:58Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/chist-chicago-marriott-suites-ohare/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0",
            "title": "Hotels Near O'Hare Airport in Chicago | Chicago Marriott Suites O'Hare Hotel",
            "time_published": "2023-08-11T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Dupage County?",
        "answer": "Chicago O'Hare International Airport (ORD) offers currency exchange through ATMs and banks located throughout the terminals. Wi‑Fi is available with charging stations across all terminals. The airport also has a chapel and an interfaith room for prayer and reflection.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/services/pages/default.aspx",
            "title": "Services  | Chicago O’Hare International Airport  (ORD)",
            "time_published": "2026-05-05T00:00:00Z"
          },
          {
            "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/O%27_Hare_International_Airport",
            "title": "O'Hare International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2003-06-18T03:43:42Z"
          },
          {
            "url": "https://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/air_traffic_services/atct/ord",
            "title": "Chicago O'Hare International Airport (ORD) | Federal Aviation Administration",
            "time_published": "2023-02-23T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/w/index.php?oldid=828932762&redirect=no&title=O%27Hare_International_Airport",
            "title": "O'Hare International Airport - Wikipedia",
            "time_published": "2003-06-18T03:43:42Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Nashville to Chicago?",
        "answer": "The most common aircraft on the nonstop Nashville–Chicago route are the Boeing 737 MAX 8 and Boeing 737-800, flown by Southwest and United, along with the Embraer 175 and Canadair Regional Jet 700 operated by American Eagle and United Express. A few flights also use the Boeing 737-700, Airbus A319, Embraer 170, or Airbus A320, so the exact type can vary by day and airline. Wi-Fi and seatback entertainment are widely available on these aircraft, though the specifics depend on the carrier and the individual plane.",
        "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 Nashville to Chicago?",
        "answer": "Nonstop flights from Nashville to Chicago are operated by Southwest, American, United, Allegiant, and Frontier. American is a member of the oneworld alliance and United belongs to Star Alliance, while Southwest, Allegiant, and Frontier are not part of any global alliance.",
        "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 Nashville?",
        "answer": "When departing from Nashville International Airport (BNA), the Delta Sky Club in Concourse B is the main airline-branded lounge, accessible to Delta One, SkyTeam premium cabin passengers, and Delta Sky Club members (or via select American Express cards). It offers a full bar, complimentary snacks, and Wi-Fi. For a quiet rest space, Minute Suites in Concourse D provides private sleep pods with a daybed, TV, and workstation, available for a fee or through Priority Pass. No other airline-branded lounges like an American Admirals Club or United Club operate at BNA, and independent options like Plaza Premium are not present.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/BNA",
            "title": "American Express Lounges at Nashville International Airport | Amex US",
            "time_published": "2026-05-02T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/delta-reserve/BNA",
            "title": "American Express Lounges at Nashville International Airport | Amex US",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.delta.com/kr/en/airports/united-states/nashville-sky-club-airport-map",
            "title": "Nashville (BNA) Airport Map & Lounges | Delta Air Lines",
            "time_published": "2020-01-01T00:00:00Z"
          },
          {
            "url": "https://www.prioritypass.com/lounges/usa/nashville-tn-intl",
            "title": "Nashville International Airport BNA Lounges - BNA Airport Guide and lounges. | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://nl.delta.com/us/nl/airports/united-states/nashville-sky-club-airport-map",
            "title": "Nashville (BNA) Airport Map & Lounges | Delta Air Lines",
            "time_published": "2023-01-01T00:00:00Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Nashville to Chicago?",
        "answer": "On domestic flights like Nashville to Chicago, baggage policies vary by airline. Basic economy fares often exclude a full-size carry-on and charge for checked bags, while standard economy typically permits a carry-on and personal item, with checked bags available for a fee."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Nashville to Chicago?",
        "answer": "On this short domestic route, you'll typically find Economy and sometimes standard domestic First Class with recliner seats; flat‑bed Business and Premium Economy are not common."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare; flexible and premium tickets often allow same‑day changes or standby, while Basic Economy typically does not."
      }
    }
  }
}