{
  "response": {
    "Key": "DEN-SAN",
    "orig": {
      "code": "DEN",
      "type": "airport",
      "city": "Denver",
      "fullCity": "Denver, Colorado",
      "airport": "Denver Intl Airport"
    },
    "dest": {
      "code": "SAN",
      "type": "airport",
      "city": "San Diego",
      "fullCity": "San Diego, California",
      "airport": "San Diego Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Denver to San Diego?",
        "answer": "A nonstop flight from Denver (DEN) to San Diego (SAN) typically takes about 2 hours and 20 minutes. Most major carriers offer direct service on this route with similar flight times."
      },
      "q1": {
        "question": "Are there any direct flights from Denver to San Diego?",
        "answer": "Yes, there are plenty of nonstop flights from Denver to San Diego. Southwest runs the most, with up to 194 weekly departures spread throughout the day, followed by United at 69, Frontier at 31, and Alaska at 21 (including one daily flight operated by SkyWest). All four carriers fly the route daily, so you can find a direct flight any day of the week.",
        "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 and weekly frequencies are summarized 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). Where available, on-time and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, and typical fares 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 San Diego?",
        "answer": "San Diego International Airport (SAN) is about three miles from downtown, so getting to the city center is quick. Ride-share services like Uber and Lyft are the most popular and fastest, with a dedicated pickup area and typical trips taking under 15 minutes. Taxis are also readily available, though slightly more expensive. Public transit options include the Metropolitan Transit System bus and the San Diego Trolley; the bus is slower and less convenient for direct downtown access, but the trolley's Green Line stops at Middletown Station near the airport with a free shuttle connection. Rental cars are accessible via a consolidated Rental Car Center, but are less practical for just reaching downtown.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.san.org/",
            "title": "San Diego International Airport | SAN.org",
            "favicon": "https://www.san.org/wp-content/uploads/2025/09/faviconArtboard-1.png",
            "time_published": "2026-07-15T20:42:55Z"
          },
          {
            "url": "http://san.org/Flights",
            "title": "Arrivals - Check Flight Status | San Diego International Airport",
            "favicon": "https://cdn-iledcni.nitrocdn.com/MENtWJRLkriAtmpQmYbUxvjofqTlAYUZ/assets/images/optimized/rev-3854d1f/www.san.org/wp-content/uploads/2025/09/faviconArtboard-1.png",
            "time_published": "2026-05-12T02:59:40Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Streets_and_highways_of_San_Diego",
            "title": "Transportation in San Diego - Wikipedia",
            "time_published": "2026-02-27T03:32:46Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation_in_San_Diego",
            "title": "Transportation in San Diego",
            "time_published": "2026-02-27T03:32:46Z"
          },
          {
            "url": "https://flysanantonio.com/nonstop_destinations/san-diego-ca/",
            "title": "San Diego, CA - San Antonio International Airport",
            "time_published": "2015-12-15T00:00:00Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Denver to San Diego?",
        "answer": "From Denver to San Diego, the cheapest months to fly are November, September, and August, with average fares around $191 to $208. The most expensive months are June, December, and October, where average fares range from $265 to $284.",
        "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 San Diego?",
        "answer": "For Denver to San Diego, the best fares appear when booking 6–9 weeks ahead, with an average price around $123. During summer or holidays, demand likely pushes the ideal window earlier — aiming for 8–12 weeks out can help avoid steeper last‑minute spikes.",
        "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 San Diego?",
        "answer": "Yes, overnight red‑eye flights are available from Denver to San Diego. Southwest operates daily red‑eyes departing between 9:35 PM and 10:00 PM, and Frontier runs daily red‑eyes departing between 9:36 PM and 10:43 PM. These flights are short enough that they land the same night, not 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 Denver to San Diego?",
        "answer": "Southwest, United, Frontier, and Alaska Airlines all fly non‑stop from Denver to San Diego. Southwest operates the most flights, with up to 194 departures a week, followed by United at 69, Frontier at 31, and Alaska at 21 (including Alaska flights operated by SkyWest). Typical median fares aren’t provided, but the schedule shows a wide range of departure times throughout the day on all four carriers.",
        "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 San Diego?",
        "answer": "Common layovers include Phoenix, Las Vegas, Salt Lake City and Los Angeles. These hubs offer frequent flights, efficient transfers and keep total travel time under about five to six hours."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Denver to San Diego?",
        "answer": "On‑time performance is generally good, though afternoon thunderstorms in Denver can cause delays. Early morning flights on Southwest and United are typically the most reliable."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Denver to San Diego?",
        "answer": "For this domestic flight, bring a state-issued ID or passport compliant with Real ID standards, a payment method for baggage, and any required health documents; no visa or proof of onward travel is needed."
      },
      "q12": {
        "question": "Which airport should I use in San Diego?",
        "answer": "San Diego has only one commercial airport, San Diego International Airport, located just three miles from downtown and convenient for all travellers."
      },
      "q13": {
        "question": "How do I get to Denver Intl Airport from the city center?",
        "answer": "The most popular and fastest way to downtown Denver is the RTD A Line commuter train, which runs from the airport transit center to Denver Union Station in about 37 minutes. Public buses, including the AB and AT routes, offer a cheaper alternative. Ride-share (Uber/Lyft) and taxis are available on Level 5 and provide door-to-door service but cost more, especially during peak times. Driving and parking on-site is also an option, with economy lots and a free shuttle to the terminal.",
        "toolsUsed": [],
        "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 San Diego airport?",
        "answer": "San Diego International Airport does not have on-site hotels, capsule hotels, or sleeping pods. However, several nearby hotels offer free shuttle service for guests, providing a convenient option for uninterrupted sleep.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.sleepinginairports.net/guides/san-diego-airport-guide.htm",
            "title": "San Diego Airport Guide (SAN) - Sleeping in Airports",
            "time_published": "2018-08-06T08:49:44Z"
          },
          {
            "url": "https://www.sleepinginairports.net/usa/sandiego.htm",
            "title": "San Diego Airport Guide (SAN) - Sleeping in Airports",
            "time_published": "2026-05-29T21:56:08Z"
          },
          {
            "url": "http://www.san.org/parking-transportation/taxis",
            "title": "Travel Tips: Before You Go | San Diego International Airport",
            "time_published": "2025-10-10T18:09:11Z"
          },
          {
            "url": "http://san.org/Flights",
            "title": "Arrivals - Check Flight Status | San Diego International Airport",
            "favicon": "https://cdn-iledcni.nitrocdn.com/MENtWJRLkriAtmpQmYbUxvjofqTlAYUZ/assets/images/optimized/rev-3854d1f/www.san.org/wp-content/uploads/2025/09/faviconArtboard-1.png",
            "time_published": "2026-05-12T02:59:40Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/San%20Diego%20International%20Airport",
            "title": "San Diego International Airport",
            "time_published": "2026-04-30T18:34:10Z"
          },
          {
            "url": "https://www.san.org/to-from/Rental-Cars",
            "title": "Rental Car Center - SAN Airport Ground Transportation",
            "favicon": "https://cdn-iledcni.nitrocdn.com/MENtWJRLkriAtmpQmYbUxvjofqTlAYUZ/assets/images/optimized/rev-309fb20/www.san.org/wp-content/uploads/2025/09/faviconArtboard-1.png",
            "time_published": "2025-07-11T21:19:17Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at San Diego Intl Airport?",
        "answer": "San Diego International Airport (SAN) offers free, fast Wi‑Fi with 2‑hour sessions (simply reconnect for more time) under the network name #SANfreewifi. Currency exchange offices are available on the departure and arrival levels in Terminal 1, Terminal 2, and the Rental Car Center. The airport has a meditation room (a quiet, post‑security space with seating and soft lighting) but does not list a dedicated chapel or multi‑faith prayer room.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.san.org/media-resources/new-terminal-1-opens-at-san-diego-international-airport/",
            "title": "New Terminal 1 Opens at San Diego International Airport - SAN Airport",
            "time_published": "2025-10-02T00:00:00Z"
          },
          {
            "url": "https://www.san.org/services-and-facilities/",
            "title": "Services and Facilities - SAN Airport",
            "favicon": "https://cdn-iledcni.nitrocdn.com/MENtWJRLkriAtmpQmYbUxvjofqTlAYUZ/assets/images/optimized/rev-e74dbd5/www.san.org/wp-content/uploads/2025/09/faviconArtboard-1.png",
            "time_published": "2025-07-11T21:33:11Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/San_Diego_International_Airport",
            "title": "San Diego International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-18T11:44:51Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation%20in%20San%20Diego",
            "title": "Transportation in San Diego",
            "time_published": "2026-02-27T03:32:46Z"
          },
          {
            "url": "https://flysanantonio.com/business/about-saas/terminal-development/",
            "title": "Terminal Development - San Antonio International Airport",
            "time_published": "2025-10-02T15:50:57Z"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Denver and San Diego airports?",
        "answer": "At Denver International Airport, wheelchair services and disability accommodations can be arranged by contacting your airline at least 48 hours prior to departure, and service animals are welcome. San Diego International Airport also offers wheelchair services through your airline, and its SAN Assist program provides personalized support for travelers with non-visible disabilities (such as autism or chronic illness), including travel guides and familiarization tours, which should be requested at least three business days in advance. Neither airport's accessibility information specifically mentions children's play areas, though San Diego's family restrooms include changing stations.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.flydenver.com/traveler_services/accessibility",
            "title": "Accessibility and Mobility | Denver International Airport",
            "time_published": "2026-04-02T20:29:43Z"
          },
          {
            "url": "https://www.flydenver.com/event/61719/",
            "title": "| Denver International Airport",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-07-09T15:14:02Z"
          },
          {
            "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"
          },
          {
            "url": "https://www.san.org/accessibility/",
            "title": "Accessibility - SAN Airport",
            "favicon": "https://cdn-iledcni.nitrocdn.com/MENtWJRLkriAtmpQmYbUxvjofqTlAYUZ/assets/images/optimized/rev-e74dbd5/www.san.org/wp-content/uploads/2025/09/faviconArtboard-1.png",
            "time_published": "2025-07-11T21:31:52Z"
          },
          {
            "url": "https://www.san.org/media-resources/san-diego-international-airport-launches-san-assist-program-to-support-travelers-with-non-visible-disabilities/",
            "title": "San Diego International Airport Launches SAN Assist Program to Support Travelers with Non-Visible Disabilities - SAN Airport",
            "time_published": "2026-02-25T00:38:38Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/San_Diego_International_Airport",
            "title": "San Diego International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-18T11:44:51Z"
          },
          {
            "url": "https://flysanantonio.com/home/at-the-airport/accessibility/",
            "title": "Accessibility - San Antonio International Airport",
            "time_published": "2024-10-18T21:07:58Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/San%20Diego%20International%20Airport",
            "title": "San Diego International Airport",
            "time_published": "2026-04-30T18:34:10Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Denver to San Diego?",
        "answer": "The most common aircraft on the Denver–San Diego nonstop route are the Boeing 737 MAX 8 and Boeing 737-800, flown primarily by Southwest and Alaska. United operates a mix of Boeing 737-900s, Airbus A321-200 Neos, and the occasional 737 MAX 9, while Embraer 175s also appear on Alaska and United flights. The exact aircraft varies by day and airline, and many flights show an unspecified type, but Wi‑Fi and seatback entertainment are widely available across the carriers serving 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"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Denver?",
        "answer": "Denver International Airport has two main lounge options. The Delta Sky Club is located in the Main Terminal, Concourse A on the 4th floor, center core; access is available up to 3 hours before departure for eligible passengers such as those flying in Delta One or with Delta Sky Club membership, and it offers premium food, beer and wine, Wi‑Fi, and flight monitors. The Centurion Lounge is in Concourse C and is accessible to American Express Platinum Card members, providing a full bar, locally inspired cuisine, and quiet workspaces. Both lounges are subject to capacity limits, so entry is not guaranteed even if you are eligible.",
        "toolsUsed": [],
        "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 San Diego?",
        "answer": "This is a domestic route, so international baggage rules are irrelevant. On Denver–San Diego flights, Basic Economy often excludes a carry‑on and charges for checked bags. Standard economy typically includes a carry‑on but may still charge for checked luggage."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Denver to San Diego?",
        "answer": "On domestic flights from Denver to San Diego, you'll typically find Economy and standard recliner First Class; flat-bed Business and Premium Economy are not common on this route."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible and premium tickets often allow same‑day changes or standby, while Basic Economy typically does not."
      }
    }
  }
}