{ "response": { "Key": "DEN-PRG", "orig": { "code": "DEN", "type": "airport", "city": "Denver", "fullCity": "Denver, Colorado", "airport": "Denver Intl Airport" }, "dest": { "code": "PRG", "type": "airport", "city": "Prague", "fullCity": "Prague, Czech Republic", "airport": "Václav Havel Airport" }, "faq": { "q0": { "question": "What is the typical flight duration from Denver to Prague?", "answer": "There are no nonstop flights from Denver (DEN) to Prague (PRG). With one stop, total travel time typically ranges from 12 to 14 hours depending on the connection city. Common layover points include Frankfurt, Munich, or London, and the return flight duration is usually similar." }, "q1": { "question": "Are there any direct flights from Denver to Prague?", "answer": "There are no nonstop flights from Denver to Prague. The quickest one-stop options connect through Munich or Frankfurt on Lufthansa, taking roughly 10.5 to 11 hours total. United also offers similar one-stop service via those German hubs, while American, British Airways, Delta, and Icelandair provide alternatives through Philadelphia, London, New York, or Reykjavik.", "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. 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", "route_aircraft" ] }, "q2": { "question": "Are there visa requirements to travel from Denver to Prague?", "answer": "Yes, there are visa requirements for travel between Denver (USA) and Prague (Czech Republic). U.S. citizens do not need a visa for short stays in the Czech Republic (up to 90 days in any 180-day period for tourism or business) as it is part of the Schengen Area. However, from mid-2025, U.S. citizens will need to obtain an ETIAS authorization before travel. Czech citizens can travel to the U.S. under the Visa Waiver Program for stays up to 90 days but must have a valid ESTA authorization. Other nationalities should check both U.S. and Schengen visa requirements based on their citizenship." }, "q3": { "question": "What are the ground transportation options in Prague?", "answer": "From Prague Airport, the most popular and budget-friendly option is public transport: trolleybus 59 (about 20 minutes to Nádraží Veleslavín metro station) and bus 100 to Zlíčín, both connecting to the metro network. A taxi takes 25–30 minutes directly to the center, but be cautious of drivers taking longer routes to inflate fares. Ride-share services like Uber and Bolt are widely available and often cheaper than taxis. Car rentals are offered at the airport, though driving and parking in central Prague can be challenging. The Airport Express bus provides a direct link to the main train station, but overall, the trolleybus-metro combination is the most used due to its speed and low cost.", "toolsUsed": [], "references": [ { "url": "https://www.pragueairport.co.uk/public-transport-from-to-the-airport/", "title": "Public Transport from / to the Airport - Prague Airport (PRG)", "time_published": "2013-08-02T09:03:03Z" }, { "url": "https://pragueairport.co.uk", "title": "Prague Airport (PRG) - Václav Havel Airport", "favicon": "https://www.pragueairport.co.uk/wp-content/uploads/favicon-192x192-2.png", "time_published": "2013-05-05T10:23:55Z" }, { "url": "https://en.wikipedia.org/wiki/Prague–Kbely_Airport", "title": "Prague–Kbely Airport", "time_published": "2026-07-05T19:43:45Z" }, { "url": "https://en.wikipedia.org/wiki/Prague_Integrated_Transport", "title": "Prague Integrated Transport", "time_published": "2026-04-09T19:04:13Z" }, { "url": "https://www.pragueairport.co.uk/contacts/", "title": "Contacts - Prague Airport (PRG)", "time_published": "2025-03-29T12:04:24Z" } ] }, "q4": { "question": "When is the cheapest time to fly from Denver to Prague?", "answer": "The cheapest months to fly from Denver to Prague are November, October, and April, with average fares around $814, $824, and $834 respectively. The most expensive months are June, July, and May, where average fares climb to $1,162, $1,083, and $1,037.", "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 Prague?", "answer": "For the best fare from Denver to Prague, aim to book 23 to 26 weeks ahead — roughly 5 to 6 months before departure — when average prices cluster around $782. The single cheapest day to book is 180 days out at $712, while waiting until the last month drives fares above $900, so summer and holiday travel should be locked in even earlier within that 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 Denver to Prague?", "answer": "Yes, connecting red-eye itineraries are available from Denver to Prague. The overnight long legs depart Denver between roughly 4:15 PM and 6:40 PM — for example, Lufthansa via Munich (departs 4:15 PM, arrives 10:00 AM) or Frankfurt (departs 5:40 PM, arrives 11:15 AM), British Airways via London (departs 6:40 PM, arrives 10:35 AM), and Icelandair via Keflavík (departs 4:40 PM, arrives 6:00 AM). All of these arrive 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 Prague?", "answer": "There is no nonstop service from Denver to Prague. The most common one-stop routings are with Lufthansa via Munich (about 6 flights daily) or Frankfurt (about 6 daily), and American Airlines via Philadelphia (about 4 daily). United also connects through Munich or Frankfurt (around 3 and 2 daily, respectively), while British Airways via London Heathrow, Icelandair via Reykjavík, and Delta via New York JFK each appear once daily. Specific per-carrier fares are not provided for this route.", "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 Prague?", "answer": "Common layover hubs between Denver and Prague include Frankfurt, Munich, London, and Paris. Frankfurt and Munich offer efficient transfers and broad connections via Lufthansa. London and Paris provide multiple daily options but may require terminal changes. All are within the Schengen area or offer visa-free transit for eligible travelers." }, "q9": { "question": "How reliable are on‑time departures on this route from Denver to Prague?", "answer": "Overall reliability is decent, though afternoon and evening flights are more prone to delays from Denver's weather. Opting for early departures on carriers like Lufthansa or United can improve your on‑time odds." }, "q10": { "question": "Which months have the best weather for traveling to Prague?", "answer": "May and September offer pleasant temperatures and fewer tourists than summer. June is warmer but busier." }, "q11": { "question": "What documents should I bring with me to the airport when flying from Denver to Prague?", "answer": "Bring a passport valid for at least three months beyond your planned stay, check if you need a Schengen visa, carry proof of onward travel, a payment method for bags, and any required vaccination certificates." }, "q12": { "question": "Which airport should I use in Prague?", "answer": "Prague has only one commercial airport, Václav Havel Airport Prague, which is located about 10 miles west of the city centre and serves all flights to the city." }, "q13": { "question": "How do I get to Denver Intl Airport from the city center?", "answer": "From downtown Denver, the University of Colorado A Line commuter rail is the fastest and most popular option, reaching the airport in about 37 minutes. RTD buses also serve the airport on several routes, offering a lower-cost alternative. Ride-share services like Uber and Lyft, along with taxis, provide door-to-door convenience at a higher price. Driving and parking are available with extensive on-site lots, though the airport is about 25 miles from downtown, so public transit is often preferred to avoid traffic.", "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 Prague airport?", "answer": "Prague Airport (PRG) has a Courtyard by Marriott hotel located directly between Terminals 1 and 2, accessible on foot without a shuttle. There are no capsule hotels or sleeping pods inside the terminals, but the airport offers rest areas with seating and footrests, particularly in Terminal 2 between Piers C and D.", "toolsUsed": [], "references": [ { "url": "https://www.sleepinginairports.net/guides/prague-airport-guide.htm", "title": "Prague Václav Havel Airport Guide", "time_published": "2024-11-15T00:00:00Z" }, { "url": "https://sleepinginairports.net/guides/prague-airport-guide.htm?st_source=ai_mode", "title": "Prague Airport Guide (PRG) - 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": "2018-08-24T19:48:13Z" }, { "url": "https://pragueairport.co.uk/sleeping-at-prague-airport", "title": "Sleeping at Prague Airport - Prague Airport (PRG)", "favicon": "https://www.pragueairport.co.uk/wp-content/uploads/favicon-192x192-2.png", "time_published": "2025-04-06T14:03:34Z" }, { "url": "https://www.pragueairport.co.uk/contacts/", "title": "Contacts - Prague Airport (PRG)", "time_published": "2025-03-29T12:04:24Z" }, { "url": "https://www.marriott.com/en-us/hotels/prgpa-courtyard-prague-airport/overview/", "title": "4 Star Hotel near Vaclav Havel Airport in Prague | Courtyard Prague Airport", "time_published": "2025-02-19T00:00:00Z" }, { "url": "https://www.sleepinginairports.net/europe/prague.htm", "title": "Prague Airport Guide (PRG) - Sleeping in Airports", "time_published": "2026-05-30T01:42:10Z" } ] }, "q16": { "question": "Are there accessible services or children's facilities at the Denver and Prague airports?", "answer": "At Denver International Airport, travelers can request wheelchair assistance by contacting their airline at least 48 hours before departure, and the airport’s automated guideway transit system is accessible. Prague Airport offers free assistance for passengers with reduced mobility under EU regulations, including priority check‑in, boarding, and Ambulift transfers; passengers should notify their airline or the airport’s assistance line (+420 220 111 220) at least 48 hours in advance. Information on dedicated children’s play areas is not detailed for either airport, though both provide family‑friendly facilities.", "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.pragueairport.co.uk/contacts/", "title": "Contacts - Prague Airport (PRG)", "time_published": "2025-03-29T12:04:24Z" }, { "url": "https://www.pragueairport.co.uk/guide-for-disabled-passengers-and-passengers-with-reduced-mobility-traveling-via-prague-airport/", "title": "Guide for Disabled Passengers and Passengers with Reduced Mobility Traveling via Prague Airport - Prague Airport (PRG)", "time_published": "2025-05-26T09:42:14Z" }, { "url": "https://en.wikipedia.org/wiki/File:PRG_Airport_Map.png", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2016-11-19T00:00:00Z" }, { "url": "https://en.wikipedia.org/wiki/Ruzyn%C4%9B_International_Airport", "title": "Václav Havel Airport Prague - Wikipedia", "time_published": "2003-08-14T00:00:00Z" }, { "url": "https://pragueairport.co.uk/online-flight-arrivals-and-departures", "title": "Online Flight Arrivals and Departures - Prague Airport (PRG)", "favicon": "https://www.pragueairport.co.uk/wp-content/uploads/favicon-192x192-2.png", "time_published": "2026-07-19T00:00:00Z" } ] }, "q17": { "question": "What aircraft are typically used on flights from Denver to Prague?", "answer": "There is no nonstop service between Denver and Prague, so all flights involve a connection. On the long transatlantic leg, the most common aircraft are the Airbus A380-800 (via Munich), the Airbus A350-900 (via Frankfurt), and the Boeing 787-9 (via Munich or Frankfurt), all operated by Lufthansa or United. Other long-haul types that appear include the Airbus A350-1000 (via London Heathrow on British Airways), the Boeing 787-8 (via Philadelphia on American), and occasionally the Boeing 767-300 (via New York JFK on Delta) or the Boeing 757-200 (via Keflavik on Icelandair). The exact aircraft can vary by day and airline, and Wi‑Fi and seatback entertainment are widely available on these long‑haul jets.", "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 Prague?", "answer": "Flights from Denver to Prague are connecting-only, served by Star Alliance carriers Lufthansa and United (via Munich or Frankfurt), Oneworld carriers American Airlines and British Airways (via Philadelphia or London), and SkyTeam's Delta (via New York JFK). Icelandair also connects through Keflavík but belongs to no major 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 Denver?", "answer": "At Denver International Airport, the two main lounges are the Delta Sky Club in Concourse A and The Centurion Lounge in Concourse C. The Delta Sky Club offers premium food, beer and wine, Wi-Fi, and flight monitors, with access for Delta One, SkyTeam Elite Plus, or Amex Platinum cardholders. The Centurion Lounge provides complimentary chef-inspired meals, a full bar, and family rooms, available to Amex Platinum and Centurion members. Both lounges can be busy during peak times, but they offer a quiet retreat with upscale amenities.", "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®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 Prague?", "answer": "Baggage allowance on Denver to Prague flights varies by airline and fare. Basic economy may not include a checked bag; standard international economy often includes one checked bag and a carry‑on. Premium cabins include more." }, "q22": { "question": "What cabin and seat options are typical from Denver to Prague?", "answer": "On flights from Denver to Prague, you can expect Economy and flat‑bed Business class, with Premium Economy offered by select airlines on connecting itineraries." }, "q23": { "question": "Are same‑day changes or standby possible on this route?", "answer": "Policies vary by airline and fare; flexible and higher cabin tickets typically allow same‑day changes or standby, while restrictive fares usually do not." } } } }