{"response": {"Key": "DEN-KTM", "orig": {"code": "DEN", "type": "airport", "city": "Denver", "fullCity": "Denver, Colorado", "airport": "Denver Intl Airport"}, "dest": {"code": "KTM", "type": "airport", "city": "Kathmandu", "fullCity": "Kathmandu, Nepal", "airport": "Tribhuvan Intl Airport"}, "faq": {"q0": {"question": "What is the typical flight duration from Denver to Kathmandu?", "answer": "The flight from Denver to Kathmandu is about 7,725 miles and has no scheduled nonstop service, so the journey requires a connection. A typical one-stop itinerary takes approximately 24 to 30 hours total travel time, depending on the layover.", "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 Kathmandu?", "answer": "At Tribhuvan International Airport (KTM), the primary ground transportation to central Kathmandu is by taxi, as there is no mass transit or rail link. Prepaid taxi counters are available inside the terminal, offering fixed fares to the city center; the journey is roughly 6 km and can take 20–40 minutes depending on traffic. Ride‑share apps like Pathao and inDrive operate in the city, but their pick‑up at the airport is less formalized than the prepaid taxi system. Car rentals are present but rarely used for the short transfer into town, and no dedicated airport bus serves the route. The prepaid taxi is the most used and reliable option for visitors.", "toolsUsed": ["article_lookup"], "references": [{"url": "https://www.airports-terminal.com/qatar-airways/qatar-airways-ktm-terminal-tribhuvan-international-airport/", "title": "Qatar Airways KTM Terminal - Tribhuvan International Airport", "time_published": "2024-06-21T00:00:00Z"}, {"url": "https://www.airports-terminal.com/lion-air/lion-air-ktm-terminal-tribhuvan-international-airport/", "title": "Lion Air KTM Terminal, Tribhuvan International Airport", "time_published": "2024-07-11T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Kuwait_Airways_Flight_221", "title": "Kuwait Airways Flight 221", "time_published": "2026-07-05T09:07:59Z"}, {"url": "https://en.wikipedia.org/wiki/List_of_Kuwait_Airways_destinations", "title": "List of Kuwait Airways destinations", "time_published": "2026-04-28T05:56:26Z"}, {"url": "https://www.airports-terminal.com/saurya-airlines/saurya-airlines-ktm-terminal-tribhuvan-international-airport/", "title": "Saurya Airlines KTM Terminal, Tribhuvan International Airport", "time_published": "2024-06-26T00:00:00Z"}]}, "q4": {"question": "When is the cheapest time to fly from Denver to Kathmandu?", "answer": "The cheapest months to fly from Denver to Kathmandu are January, February, and April, with average fares around $1,595–$1,655. The most expensive months are June, December, and July, where average prices climb to $1,982–$2,100.", "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 Kathmandu?", "answer": "For a flight from Denver to Kathmandu, the best time to book is about 6 to 9 weeks before departure, when fares average around $1,692. Booking around 55 days out can get you the lowest price of about $1,662, while waiting until the last minute may cost over $2,300. During peak summer or holiday periods, demand can push prices higher, so aiming for the earlier end of that window, or even a bit further out, is wise.", "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 Kathmandu?", "answer": "No overnight (red-eye) flights are available from Denver to Kathmandu — neither nonstop nor connecting itineraries with a red-eye long leg operate on this route.", "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 Kathmandu?", "answer": "There are no nonstop or one‑stop flights from Denver to Kathmandu. All itineraries require at least two connections, and no dominant connecting routings or per‑carrier frequencies are available in the published schedule data for this route. Because the route is not covered by the fare aggregate, typical per‑carrier fares are not provided.", "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 Kathmandu?", "answer": "Common layovers include Doha, Dubai and Istanbul, each offering broad connections, efficient transfers and visa‑free transit for many nationalities."}, "q10": {"question": "Which months have the best weather for traveling to Kathmandu?", "answer": "October to November and March to April offer clear skies, mild temperatures, and fewer tourists than the peak autumn trekking season."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Denver to Kathmandu?", "answer": "Bring a passport valid for at least six months, a Nepali visa or approval letter, proof of onward travel, payment for baggage, and any required vaccination certificates."}, "q12": {"question": "Which airport should I use in Kathmandu?", "answer": "Tribhuvan International Airport is the only airport serving Kathmandu."}, "q13": {"question": "How do I get to Denver Intl Airport from the city center?", "answer": "To reach Denver International Airport (DEN) from downtown, the A Line commuter train is the fastest and most popular option, taking about 37 minutes from Denver Union Station and costing $10.50. Public buses like route 104L are cheaper but slower, while ride‑share (Uber/Lyft) and taxis offer door‑to‑door convenience at a higher cost, typically $40–$60. Driving yourself is another option, with on‑airport parking available in economy lots, garages, or valet service.", "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 Kathmandu airport?", "answer": "Kathmandu Airport (KTM) does not have on-site hotels, capsule hotels, or sleeping pods; sleeping overnight is not permitted as the airport closes from roughly 12:30 AM to 6:30 AM. Nearby hotels offer shuttle service for uninterrupted rest, and passengers must wait for the terminal to reopen in the morning.", "toolsUsed": ["article_lookup"], "references": [{"url": "https://sleepinginairports.net/guides/kathmandu-airport-guide.htm", "title": "Kathmandu Airport Guide (KTM) - 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": "2018-10-02T00:00:58Z"}, {"url": "https://www.sleepinginairports.net/mideast/kuwait.htm", "title": "Kuwait City Airport Guide (KWI) - Sleeping in Airports", "time_published": "2026-04-13T20:15:28Z"}, {"url": "https://www.airports-terminal.com/lion-air/lion-air-ktm-terminal-tribhuvan-international-airport/", "title": "Lion Air KTM Terminal, Tribhuvan International Airport", "time_published": "2024-07-11T00:00:00Z"}, {"url": "https://www.airports-terminal.com/qatar-airways/qatar-airways-ktm-terminal-tribhuvan-international-airport/", "title": "Qatar Airways KTM Terminal - Tribhuvan International Airport", "time_published": "2024-06-21T00:00:00Z"}, {"url": "https://activities.marriott.com/asia/nepal/kathmandu/activities/private_car_transfer_from_kathmandu_airport_to_hotels_in_kathmandu-XIKWAM", "title": "Private car transfer from Kathmandu Airport to hotels in Kathmandu", "time_published": "2026-02-23T00:00:00Z"}, {"url": "https://www.airports-terminal.com/malaysia-airlines/malaysia-airlines-ktm-terminal-tribhuvan-international-airport/", "title": "Malaysia Airlines KTM Terminal, Tribhuvan International Airport", "time_published": "2024-03-05T00:00:00Z"}]}, "q15": {"question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Tribhuvan Intl Airport?", "answer": "Tribhuvan International Airport (KTM) offers currency exchange offices, prayer rooms, and free Wi‑Fi. Currency exchange and ATMs are located in both the international and domestic terminals, including the arrivals hall. Prayer rooms are available in the international terminal near the departure gates. Free Wi‑Fi is accessible throughout the terminal for a limited time; you can connect to the 'TIA Free WiFi' network and follow the on‑screen instructions.", "toolsUsed": ["article_lookup"], "references": [{"url": "https://www.airports-terminal.com/qatar-airways/qatar-airways-ktm-terminal-tribhuvan-international-airport/", "title": "Qatar Airways KTM Terminal - Tribhuvan International Airport", "time_published": "2024-06-21T00:00:00Z"}, {"url": "https://www.airports-terminal.com/malaysia-airlines/malaysia-airlines-ktm-terminal-tribhuvan-international-airport/", "title": "Malaysia Airlines KTM Terminal, Tribhuvan International Airport", "time_published": "2024-03-05T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Kuwait_International_Airport", "title": "Kuwait International Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-21T05:58:35Z"}, {"url": "https://en.wikipedia.org/wiki/Kuwait_Airways_Flight_221", "title": "Kuwait Airways Flight 221", "time_published": "2026-07-05T09:07:59Z"}, {"url": "https://www.airports-terminal.com/lion-air/lion-air-ktm-terminal-tribhuvan-international-airport/", "title": "Lion Air KTM Terminal, Tribhuvan International Airport", "time_published": "2024-07-11T00:00:00Z"}]}, "q20": {"question": "What are the best airport lounge options when departing from Denver?", "answer": "Denver International Airport has two notable lounges. The American Express Centurion Lounge is located in Concourse C and offers complimentary food, a full bar, and shower suites, with access for Platinum Card® Members, Centurion® Members, and Delta SkyMiles® Reserve Card Members. The Delta Sky Club is in the Main Terminal, Concourse A, on the 4th floor, featuring premium food, beer and wine, and flight monitors, accessible to Delta One passengers, SkyTeam Elite Plus members, and eligible cardholders. Day passes are not available for either lounge.", "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 Kathmandu?", "answer": "Baggage allowance on the Denver to Kathmandu route depends on the airline and fare class. Basic economy fares are restrictive and may not include a checked bag, while standard international economy typically allows one free checked bag and a carry-on. Premium cabins offer more generous allowances."}, "q22": {"question": "What cabin and seat options are typical from Denver to Kathmandu?", "answer": "Flights from Denver to Kathmandu typically offer Economy and flat‑bed Business class; Premium Economy is sometimes available on connecting itineraries, but First class is uncommon."}, "q23": {"question": "Are same‑day changes or standby possible on this route?", "answer": "Policies vary by airline and fare; flexible and premium cabin tickets may offer same‑day changes or standby, while basic fares typically do not."}}}}