{
  "response": {
    "Key": "DEN-CMH",
    "orig": {
      "code": "DEN",
      "type": "airport",
      "city": "Denver",
      "fullCity": "Denver, Colorado",
      "airport": "Denver Intl Airport"
    },
    "dest": {
      "code": "CMH",
      "type": "airport",
      "city": "Columbus",
      "fullCity": "Columbus, Ohio",
      "airport": "John Glenn Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Denver to Columbus?",
        "answer": "Flights from Denver to Columbus are about 1,150 miles and typically take 2 hours 45 minutes nonstop. The return flight to Denver usually takes 3 hours 10 minutes, about 25 minutes longer 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"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in Columbus?",
        "answer": "At John Glenn Columbus International Airport (CMH), you can take a COTA AirConnect bus to downtown for $2.75 with a roughly 25-minute trip every 30 minutes, or use rideshare services like Uber and Lyft that pick up on the ground transportation level. Taxis are available 24/7 with a metered fare around $25 to downtown, and several rental car agencies have desks in the parking garage. The bus is the most-used budget option, but rideshare is often the fastest and most convenient door-to-door.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.airportsdata.net/airport-CMH/",
            "title": "Columbus airport (CMH)",
            "time_published": "2025-11-14T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/John_Glenn_Columbus_International_Airport?oldid=751470363",
            "title": "John Glenn Columbus International Airport - Wikipedia",
            "time_published": "2016-11-25T22:19:25Z"
          },
          {
            "url": "https://www.airportsdata.net/airport-CMH-transportation/",
            "title": "Transfer to/from - Columbus airport (CMH)",
            "time_published": "2020-03-26T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/CMH",
            "title": "CMH",
            "time_published": "2025-02-22T13:51:45Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Columbus_Airport",
            "title": "Columbus Airport",
            "time_published": "2024-10-23T19:10:27Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Denver to Columbus?",
        "answer": "The cheapest time to fly from Denver to Columbus is in April, with average fares around $284, followed by March at $338. The most expensive months are September, averaging $459, and June at $452.",
        "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 Denver to Columbus?",
        "answer": "For flights from Denver to Columbus, the optimal booking window is 2 to 5 weeks before departure, with average fares around $252. Booking very far in advance (around 160 days out) can sometimes yield a lower fare of about $221, but waiting until the last minute typically pushes prices above $400. For summer and holiday periods, demand is higher, so aiming for the early side of that window (4-5 weeks ahead) or even slightly earlier is wise to secure the best rates.",
        "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 Denver to Columbus?",
        "answer": "No nonstop red-eye flights operate between Denver and Columbus, but a connecting overnight itinerary is available: Frontier flies a red-eye from Denver to Orlando (MCO), departing at 11:59 PM and arriving at 5:38 AM, then connecting on Frontier to Columbus with about a 1 hour 37 minute layover.",
        "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 Denver to Columbus?",
        "answer": "Southwest Airlines is the dominant non‑stop carrier from Denver to Columbus, with 84 weekly flights spread across the day. United Airlines also flies the route non‑stop, offering 22 weekly flights, while Frontier provides limited non‑stop service on Mondays, Thursdays, Fridays and Sundays with 9 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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Denver and Columbus?",
        "answer": "Common layover cities include Chicago O'Hare, Dallas/Fort Worth, and Minneapolis. These hubs offer frequent flights and efficient connections, keeping total travel time competitive, with Chicago often providing the shortest routing."
      },
      "q9": {
        "question": "How reliable are on‑time arrivals on this route from Denver to Columbus?",
        "answer": "On the Denver to Columbus route, United Airlines has the best on-time arrival record at 77%, with a cancellation rate of just 0.2%. Frontier follows at 76.3% on-time but cancels 1.7% of flights, while Southwest arrives on time 63.7% of the time and cancels 0.3%.",
        "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 Columbus?",
        "answer": "May to June and September to October offer pleasant temperatures and smaller crowds than summer events."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Denver to Columbus?",
        "answer": "For this domestic U.S. flight, bring a Real ID or passport, ensure the name matches your ticket, and carry a payment method for checked bags; vaccination certificates are not required."
      },
      "q12": {
        "question": "Which airport should I use in Columbus?",
        "answer": "Columbus has one commercial airport, John Glenn Columbus International Airport, located about 6 miles east of downtown."
      },
      "q13": {
        "question": "How do I get to Denver Intl Airport from the city center?",
        "answer": "From downtown Denver, the fastest and most popular option is the RTD A-Line train, which runs directly from Denver Union Station to the airport transit center in about 37 minutes. Public buses, including the AT route, offer a lower-cost alternative but take longer. Ride-share services like Uber and Lyft are readily available, while taxis and shared shuttles provide door-to-door convenience at a higher price. Driving and parking on-site is possible, with economy lots being the most affordable, but the airport is about 25 miles from downtown.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.flydenver.com/parking-and-transportation/to-and-from/airport-transit-center/",
            "title": "Airport Transit Center | Denver International Airport",
            "time_published": "2026-02-24T17:09:34Z"
          },
          {
            "url": "https://flydenver.com/connections/",
            "title": "Connections | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2023-09-14T15:33:21Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Automated_Guideway_Transit_System_(Denver_International_Airport)",
            "title": "Automated Guideway Transit System (Denver International Airport)",
            "time_published": "2026-06-01T08:54:40Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Denver%20International%20Airport",
            "title": "Denver International Airport",
            "time_published": "2026-04-30T15:08:23Z"
          },
          {
            "url": "https://www.faa.gov/?action=searchForAirport&airportcode=PSR",
            "title": "Federal Aviation Administration",
            "favicon": "https://www.faa.gov/themes/custom/faa/favicon.png",
            "time_published": "2026-07-17T12:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Columbus airport?",
        "answer": "John Glenn Columbus International Airport (CMH) does not have an on‑site hotel, capsule hotel, or sleeping pods inside the terminal. The closest option is the Columbus Airport Marriott, located about a mile away and connected by a complimentary shuttle. Other nearby hotels, such as the Aloft Columbus Westerville, also offer shuttle service but are farther from the airport.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.sleepinginairports.net/guides/columbus-airport-guide.htm",
            "title": "Columbus Airport Guide (CMH) - Sleeping in Airports",
            "time_published": "2026-02-11T20:39:11Z"
          },
          {
            "url": "https://www.airportsdata.net/airport-CMH/",
            "title": "Columbus airport (CMH)",
            "time_published": "2025-11-14T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/John%20Glenn%20Columbus%20International%20Airport",
            "title": "John Glenn Columbus International Airport",
            "time_published": "2026-05-01T08:17:28Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/cmham-columbus-airport-marriott/overview/?toDate=1/28/12&groupCode=ofuofua&fromDate=1/25/overview/",
            "title": "CMH Airport Hotel | Columbus Airport Marriott",
            "time_published": "2024-10-11T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/cmhaw-aloft-columbus-westerville/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0",
            "title": "Aloft Columbus Westerville - Hotel Near John Glenn Int'l Airport",
            "time_published": "2025-02-19T00:00:00Z"
          },
          {
            "url": "https://chase.com/personal/credit-cards/education/basics/a-guide-to-john-glenn-columbus-international-airport",
            "title": "A Guide to John Glenn Columbus International Airport (CMH) | Chase",
            "time_published": "2025-11-04T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at John Glenn Intl Airport?",
        "answer": "John Glenn Columbus International Airport offers free Wi‑Fi throughout the terminal. A meditation room is available for quiet reflection or prayer. Currency exchange offices are not mentioned in the available information; you may need to exchange money before arriving or use ATMs on‑site.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.airportsdata.net/airport-CMH/",
            "title": "Columbus airport (CMH)",
            "time_published": "2025-11-14T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/John%20Glenn%20Columbus%20International%20Airport",
            "title": "John Glenn Columbus International Airport",
            "time_published": "2026-05-01T08:17:28Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/John_Glenn_Columbus_International_Airport?oldid=751470363",
            "title": "John Glenn Columbus International Airport - Wikipedia",
            "time_published": "2016-11-25T22:19:25Z"
          },
          {
            "url": "https://www.airportsdata.net/airport-CMH-transportation/",
            "title": "Transfer to/from - Columbus airport (CMH)",
            "time_published": "2020-03-26T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/John_Glenn_Airport",
            "title": "John Glenn Columbus International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2003-07-17T00:08:52Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Denver to Columbus?",
        "answer": "Nonstop flights from Denver to Columbus are typically operated with Boeing 737 MAX 8, 737-800, and 737-900 aircraft, flown by Southwest and United. On connecting itineraries, the long leg often uses a Boeing 737 MAX 8, 737-800, or Airbus A321-200 Neo, with common connection points including Chicago O'Hare, Chicago Midway, and Baltimore. Specific aircraft can vary by day and airline, but the Boeing 737 family dominates 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 Denver to Columbus?",
        "answer": "Nonstop flights from Denver to Columbus are operated by United (a Star Alliance member), along with Southwest and Frontier, neither of which belongs to any global alliance. Other alliances may serve the route via connections, but no SkyTeam or oneworld carriers fly 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",
          "article_lookup"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Denver?",
        "answer": "At Denver International Airport, you'll find a Delta Sky Club in the Main Terminal on Concourse A, offering premium food, beer and wine, Wi-Fi, and flight monitors, accessible with a same-day Delta boarding pass or membership. The Centurion Lounge is located in Concourse C, featuring complimentary food and cocktails, and is available to American Express Platinum and Centurion cardholders. Both lounges allow access up to three hours before departure.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://americanexpress.com/en-gb/travel/lounges/the-platinum-card/DEN",
            "title": "American Express Lounges at Denver International Airport | Amex GB",
            "time_published": "2026-05-03T00:00:00Z"
          },
          {
            "url": "https://www.flydenver.com/",
            "title": "Denver International Airport | DEN",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-06-02T21:34:27Z"
          },
          {
            "url": "https://flydenver.com/at-the-airport",
            "title": "Exciting Things to Do at Denver International Airport",
            "time_published": "2026-02-18T15:39:31Z"
          },
          {
            "url": "https://www.americanexpress.com/en-us/travel/lounges/the-centurion-card-idc-en/DEN/Delta-Sky-Club-Main-Terminal-Concourse-A-IgRTEiZDls/",
            "title": "Delta Sky Club at Denver International Airport | Amex US",
            "time_published": "2026-03-18T00:00:00Z"
          },
          {
            "url": "https://carsandstays.delta.com/Denver-Hotels-Sleep-Inn-Suites-Denver-International-Airport.h23533743.Hotel-Information?categorySearch=any_option&chkin=2026-07-06&chkout=2026-07-07&destType=MARKET&destination=Denver%2C+CO%2C+United+States+of+America+%28DEN-All+Airports%29&latLong=39.74483000000001%2C-104.94829500000002&pwa_ts=1782175590171&referrerUrl=aHR0cHM6Ly9jYXJzYW5kc3RheXMuZGVsdGEuY29tL0hvdGVsLVNlYXJjaA%3D%3D&regionId=6139084&rfrr=HSR&rm1=a2&searchId=b9103c12-38ab-46f5-86a7-f3447411bdbe&selectedRatePlan=383244565&selectedRoomType=218717901&sort=RECOMMENDED&top_cur=USD&top_dp=126&useRewards=false&x_pwa=1",
            "title": "Sleep Inn & Suites Denver International Airport",
            "favicon": "https://carsandstays.delta.com/favicon.ico",
            "time_published": "2026-06-23T09:32:24Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Denver to Columbus?",
        "answer": "Baggage policies vary by airline and fare class. Basic Economy tickets are usually the most restrictive and may not include a checked bag, while standard economy fares often allow you to add a checked bag for a fee. A carry‑on bag and personal item are typically included with all fares."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Denver to Columbus?",
        "answer": "On this domestic route, typical options are Economy and sometimes a larger recliner seat in First class. Flat‑bed Business and Premium Economy are not commonly offered."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies depend on the carrier and fare class; flexible and premium tickets often allow same‑day changes or standby, while restrictive fares usually do not."
      }
    }
  }
}