{ "response": { "Key": "DEN-SFO", "orig": { "code": "DEN", "type": "airport", "city": "Denver", "fullCity": "Denver, Colorado", "airport": "Denver Intl Airport" }, "dest": { "code": "SFO", "type": "airport", "city": "San Francisco", "fullCity": "San Francisco, California", "airport": "San Francisco Intl Airport" }, "faq": { "q0": { "question": "What is the typical flight duration from Denver to San Francisco?", "answer": "The flight from Denver to San Francisco is about 970 miles and typically takes 2 hours 42 minutes. The return leg is slightly quicker at about 2 hours 30 minutes, a 12-minute difference that isn't large enough to mention directionally. United, Frontier, and Southwest all operate nonstop service on this route.", "methodology": "Flight times and distances come 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). The typical flight time is the median scheduled block time across all carriers on the route, computed the same way in both directions so the difference reflects prevailing winds rather than any change in method. Distance is the great-circle distance between the two airports, so the actual flown track is typically 2-5% longer.", "toolsUsed": [ "flight_schedule" ] }, "q1": { "question": "Are there any direct flights from Denver to San Francisco?", "answer": "Three airlines fly nonstop from Denver to San Francisco — United, Southwest, and Frontier — all operating daily with a combined 357 weekly flights. United runs the most frequencies (183 per week), followed by Southwest (135) and Frontier (39); typical flight time is about 2 hours and 42 minutes, and red‑eye departures are available from all three 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. 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. 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. 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_airlines", "flight_schedule", "redeye_flights", "route_aircraft" ] }, "q3": { "question": "What are the ground transportation options in San Francisco?", "answer": "BART rapid rail is the fastest and most-used option, connecting the airport to downtown San Francisco in about 30 minutes. Ride-share services like Lyft and Uber pick up on Level 5 of the Domestic Garage, while taxis are available at the arrivals curbside. Rental cars are accessible via the AirTrain Blue Line to the consolidated Rental Car Center, and many hotels offer complimentary shuttles. Waymo autonomous rides are also available for select passengers at the Rental Car Center.", "toolsUsed": [ "article_lookup" ], "references": [ { "url": "https://flysfo.com/passengers/ground-transportation", "title": "Ground Transportation | San Francisco International Airport", "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-04-08T21:19:40Z" }, { "url": "https://flysfo.com/de/node/10188", "title": "Ground Transportation | San Francisco International Airport", "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-04-08T21:19:40Z" }, { "url": "https://en.wikipedia.org/wiki/SFO", "title": "San Francisco International Airport", "time_published": "2026-04-27T05:13:36Z" }, { "url": "https://en.wikipedia.org/wiki/San_Francisco_International_Airport", "title": "San Francisco International Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-18T07:52:09Z" }, { "url": "https://www.flysfo.com/pt-br", "title": "Home Page | San Francisco International Airport", "time_published": "2026-01-01T00:00:00Z" } ] }, "q4": { "question": "When is the cheapest time to fly from Denver to San Francisco?", "answer": "Average fares from Denver to San Francisco bottom out around $227 in early February, making that the cheapest stretch to fly. February, September, and January are the most affordable months overall, with averages of $227, $234, and $235 respectively. The most expensive period is early June, when average fares peak around $301.", "methodology": "Seasonal fares come from Priceline's own air booking-summary archive, analysed in-house and refreshed monthly. For each day of the year we take a representative round-trip fare, a blend of the 25th-percentile and average ticket price over the route's bookings, and smooth the series into a seasonal curve; the half-month low and high and the monthly figures quoted here are averages of that curve. Thin and international routes borrow their seasonal shape from the nearest busy routes, with the price level anchored to the route's own bookings.", "toolsUsed": [ "seasonal_prices" ] }, "q5": { "question": "How far in advance should I book tickets from Denver to San Francisco?", "answer": "For Denver to San Francisco, the best fares come when you book about 4 to 7 weeks ahead of departure, with prices averaging $169 in that window. Booking around 35 days out is the single cheapest point at $167, while waiting until the last week can push fares to $294 or more. For summer and holiday periods, demand is higher, so booking earlier than that 4-7 week range is wise to avoid the steepest prices.", "methodology": "Booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. We aggregate the route's bookings by how many days before departure they were made, from about 180 days out to the day of travel, smooth the curve, and highlight the stretch of lead times with the lowest average fare. Thin and international routes borrow the curve shape from the nearest busy routes, anchored to the route's own price level. It reflects current fares and is refreshed monthly.", "toolsUsed": [ "booking_timing" ] }, "q6": { "question": "Are overnight (red‑eye) flights available from Denver to San Francisco?", "answer": "Yes, overnight red‑eye flights are available from Denver to San Francisco. United, Southwest, and Frontier all operate nonstop red‑eyes daily, with departures typically between 9:05 PM and 10:45 PM. These flights land around midnight or just after, arriving the same night or in the very early hours — 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 Francisco?", "answer": "United, Southwest, and Frontier operate nonstop from Denver to San Francisco. United offers the most service with 183 weekly flights, Southwest has 135 weekly flights, and Frontier provides 39 weekly flights. Fares in the schedule data are not available for this route, so specific per‑carrier pricing isn't provided.", "methodology": "Airlines and weekly frequencies come 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 typical fare is shown for a carrier, it is the median of 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 Francisco?", "answer": "This is a domestic route with numerous nonstop flights. If you need a connection, common layovers are Salt Lake City, Las Vegas, and Phoenix, which offer efficient transfers and keep total travel time reasonable." }, "q9": { "question": "How reliable are on‑time arrivals on this route from Denver to San Francisco?", "answer": "United Airlines is the most reliable carrier on the Denver to San Francisco route, with 77.0% of arrivals within 15 minutes of schedule and a cancellation rate of 0.7%. Frontier follows at 69.9% on-time arrivals and a 0.5% cancellation rate, while Southwest trails at 58.4% on-time and 0.5% cancellations.", "methodology": "On-time arrival 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; a flight counts as on time when it arrives within 15 minutes of schedule. Carriers are ranked by arrival on-time rate on this route, and the carrier list itself comes 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).", "toolsUsed": [ "flight_schedule" ] }, "q10": { "question": "Which months have the best weather for traveling to San Francisco?", "answer": "September and October offer the warmest and sunniest weather with fewer tourists." }, "q11": { "question": "What documents should I bring with me to the airport when flying from Denver to San Francisco?", "answer": "For domestic travel, bring a Real ID or passport, ensure it matches your ticket, and carry payment for baggage and any required health documents." }, "q12": { "question": "Which airport should I use in San Francisco?", "answer": "San Francisco International (SFO) is the primary airport, conveniently located about 13 miles south of downtown. It serves as a major hub for United Airlines and Alaska Airlines, with extensive domestic and international connections. The Bay Area also has Oakland International (OAK) across the bay, a focus city for Southwest Airlines, popular for low‑cost domestic flights. San Jose International (SJC) is farther south in Silicon Valley, convenient for tech business travellers. For most travellers to San Francisco itself, SFO is the best choice." }, "q13": { "question": "How do I get to Denver Intl Airport from the city center?", "answer": "The fastest and most popular way to reach Denver International Airport (DEN) from downtown Denver is the RTD A‑Line commuter train, which departs from Denver Union Station and takes about 37 minutes. Ride‑share services like Uber and Lyft, as well as taxis, offer door‑to‑door convenience with a typical drive time of 30–45 minutes depending on traffic, while shared‑van shuttles and hotel shuttles provide a middle ground. Driving and parking at the airport is straightforward, with several on‑site lots and a free shuttle from the economy lots, though downtown parking fees can add up if you leave a car at Union Station. Public buses also serve the airport, but they are slower and less direct than the train.", "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 San Francisco airport?", "answer": "San Francisco International Airport (SFO) has the Grand Hyatt at SFO, an on-site hotel connected to the terminals via the AirTrain, so no shuttle is required. There are no capsule hotels or sleeping pods within the terminals, but hourly nap rooms and showers are available in the International Terminal. Several nearby hotels like the San Francisco Airport Marriott Waterfront and The Westin San Francisco Airport offer complimentary shuttle service.", "toolsUsed": [ "article_lookup" ], "references": [ { "url": "https://www.sleepinginairports.net/guides/san-francisco-airport-guide.htm", "title": "San Francisco Airport Guide (SFO) - 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": "2018-10-02T00:00:42Z" }, { "url": "https://www.marriott.com/en-us/hotels/sfobg-san-francisco-airport-marriott-waterfront/overview/?EM=DNM_SANFRANCISCOAIRPORTMARRIOTT.COM", "title": "SFO Airport Hotel | San Francisco Airport Marriott Waterfront", "time_published": "2025-02-19T00:00:00Z" }, { "url": "https://www.marriott.com/en-us/hotels/sfowi-the-westin-san-francisco-airport/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0", "title": "The Westin San Francisco Airport (Official Site) - SFO Hotel", "time_published": "2025-02-19T00:00:00Z" }, { "url": "https://www.flysfo.com/passengers/shop-dine-relax?content_type=things_to_do&location=3&sort_by=random", "title": "Shop/Dine/Relax | San Francisco International Airport", "time_published": "2025-10-22T23:13:26Z" }, { "url": "https://www.flysfo.com/passengers/shop-dine-relax?content_type=All&gate_area=All&https://www.flysfo.com/passengers/shop-dine-relax?https://www_flysfo_com/passengers/shop-dine-relax?https://www_flysfo_com/passengers/shop-dine-relax?location=2&location=1659&security=All&service_tags=All&sort_by=random", "title": "Shop/Dine/Relax | San Francisco International Airport", "time_published": "2025-10-22T23:13:26Z" }, { "url": "http://www.flysfo.com/de/node/14691", "title": "Press Releases | San Francisco International Airport", "time_published": "2025-07-09T15:54:20Z" } ] }, "q15": { "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at San Francisco Intl Airport?", "answer": "San Francisco International Airport (SFO) has currency exchange services available in the International Terminal and Terminal 3. There is a Reflection Room in the terminals that serves as a quiet space for meditation and prayer. Free Wi‑Fi is offered throughout the airport.", "toolsUsed": [ "article_lookup" ], "references": [ { "url": "https://flysfo.com/passengers/shop-dine-relax", "title": "Shop/Dine/Relax | San Francisco International Airport", "time_published": "2026-03-12T16:15:43Z" }, { "url": "http://www.flysfo.com/welcome-terminal-3", "title": "Welcome to Terminal 3 | San Francisco International Airport", "favicon": "http://www.flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-05-08T21:34:33Z" }, { "url": "https://en.wikipedia.org/wiki/San_Francisco_International_Airport", "title": "San Francisco International Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-18T07:52:09Z" }, { "url": "https://en.wikipedia.org/wiki/San%20Francisco%20International%20Airport", "title": "San Francisco International Airport", "time_published": "2026-04-28T21:12:40Z" }, { "url": "https://flysfo.com/passengers/services-amenities", "title": "Services & Amenities | San Francisco International Airport", "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-03-03T22:32:54Z" } ] }, "q17": { "question": "What aircraft are typically used on flights from Denver to San Francisco?", "answer": "The most common aircraft on nonstop flights from Denver to San Francisco are the Boeing 737 MAX 8, Airbus A321-200 Neo, Boeing 737-800, and Boeing 757-300, operated by United and Southwest. Frontier also serves the route, though its specific aircraft type is not publicly listed in schedule data. The exact aircraft can vary by day and airline, but these narrowbody jets form the backbone of the route's nonstop service.", "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 San Francisco?", "answer": "United (Star Alliance), Southwest, and Frontier fly nonstop from Denver to San Francisco. Southwest and Frontier are unaligned carriers, so no oneworld or SkyTeam airline offers nonstop service on this route, though they may serve it via connections.", "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 Denver?", "answer": "At Denver International Airport, departing passengers can access the American Express Centurion Lounge in Concourse C, known for its chef-curated seasonal menu, craft cocktails, and a spacious design with runway views. There is also a Delta Sky Club in Concourse A on the fourth floor of the center core, offering premium food, a full bar, and flight monitors. Access to the Centurion Lounge is available to American Express Platinum and Centurion cardholders, while the Delta Sky Club admits Delta One passengers, SkyTeam Elite Plus members, and those with eligible Delta credit cards.", "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®ionId=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 Francisco?", "answer": "Baggage rules depend on the airline and fare. Basic economy typically excludes a free checked bag and may restrict carry-on to a personal item. Standard economy often includes a carry-on and charges for checked bags, while premium cabins include both." }, "q22": { "question": "What cabin and seat options are typical from Denver to San Francisco?", "answer": "On this domestic route, nearly all flights offer Economy and a larger front cabin seat, with flat-bed Business available only on select widebody aircraft operated by a few carriers; Premium Economy is not common." }, "q23": { "question": "Are same‑day changes or standby possible on this route?", "answer": "Policies vary; full‑fare and elite status travellers may request same‑day changes or standby, but Basic Economy tickets seldom permit it." } } } }