$653 Cheap Flights from Denver (DEN) to Kathmandu (KTM)

Denver (DEN) to Kathmandu (KTM) at a glance

Embark on an exciting journey from Denver (DEN) to Kathmandu (KTM) with a selection of airlines offering various options on this international long-haul route. Explore a range of full-service carriers to discover the itinerary that aligns with your budget, schedule, and travel plans as you prepare to experience Kathmandu's iconic sights and vibrant neighborhoods. Here, you'll find essential details for flights from Denver International Airport (DEN) to Tribhuvan International Airport (KTM).

• Fastest flight duration: around 18h 45m in-flight, plus roughly 8 hours layover with one stop
• Route distance: roughly 7,700 miles (12,390 km)
• Flights per week: around 9 departures on average
• Typical fares (one-way): economy tickets often range from $470–$1140, depending on seasonality and how far ahead you book

Flights from Denver International Airport (DEN) to Tribhuvan International Airport (KTM)

According to recent traveler bookings, the top airlines flying from Denver to Kathmandu are popular choices for both one-stop and multi-stop flights. Notable layover locations include Hamad International Airport (DOH) with a layover of approximately 4 hours and 15 minutes, Dallas-Fort Worth International Airport (DFW) with about 3 hours, and John F. Kennedy International Airport (JFK) offering around 5 hours and 45 minutes. These options provide travelers the flexibility to balance cost, total travel time, and cabin class when planning their journey.

• American Airlines: This full-service airline provides multi-stop options, with one-way ticket prices generally between $470 and $910. It handles around 33% of departures on this route, featuring an in-flight duration of 21 hours and an overall travel time of about 30 hours, including layovers.
• Qatar Airways: Known for its full-service offerings, Qatar Airways presents multi-stop services with one-way fares typically ranging from $610 to $1395. It makes up about 28% of departures on this route, with a flight time of approximately 21 hours and a total travel duration of around 30 hours, factoring in layovers.
• Turkish Airlines: Offering both one-stop and multi-stop services, this full-service carrier has one-way fares that usually fall between $660 and $1250. It accounts for roughly 18% of departures on this route, with an in-flight time of 18 hours and 45 minutes and a total journey time of about 26 hours and 45 minutes.
• United: As a full-service airline providing multi-stop services, United's one-way fares typically range from $545 to $975. It represents around 11% of departures on this route, featuring an in-flight duration of 21 hours and a cumulative travel time of approximately 30 hours, including layovers.
• Singapore Airlines: This full-service carrier offers multi-stop itineraries, with one-way fares generally priced between $695 and $1070. It constitutes about 4% of departures on this route, with a flight time of 21 hours and an overall journey time of roughly 30 hours, including layover periods.

Best time to fly from Denver (DEN) to Kathmandu (KTM)

The most popular months for travelers flying from Denver to Kathmandu are January, February, and April, when peak temperatures in Kathmandu reach up to 67.3°F in April. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 69.8°F. For better deals, February usually offers the lowest average one-way fare around $677. Flight availability peaks in September, with approximately 11 flights per week, making it easier to find convenient departure times.

• Cheapest time to fly: February usually offers good deals with average one-way fare around $677, roughly 19% cheaper than the yearly average.
• Another budget-friendly time to fly: January typically offers an average one-way fare of around $728.
• Most flight options: September has the highest number of flights from Denver to Kathmandu, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Denver (DEN) to Kathmandu (KTM)

• Colorado Springs to Kathmandu (COS-KTM): Colorado Springs Airport (COS) lies approximately 73 miles from Denver International Airport (DEN).
• Denver to Pokhara Intl. Airport (DEN-PKR): Located about 89 miles from Tribhuvan International Airport (KTM), Pokhara International Airport (PKR) offers convenient access.

How to find the best prices for flights from Denver (DEN) to Kathmandu (KTM)

Getting some of the best deals on flights from Denver to Kathmandu is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are typically found when booking 2 to 8 weeks in advance, although most travelers tend to book at least 2 months ahead. Afternoon departures (12 PM to 6 PM) often offer lower prices, while Evening flights (6 PM to 12 AM) are the most popular. Additionally, flying on Thursday usually results in cheaper fares, even though Monday is the busiest travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Kathmandu hotel and flight deals.
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Tribhuvan International Airport from Denver International Airport

Kathmandu welcomes travelers from Denver with a range of transport options based on price, convenience, and proximity. Here's how to reach Kathmandu efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Kathmandu, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
• Car rental: Renting a car from Tribhuvan International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Tribhuvan International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Tribhuvan International Airport, Kathmandu Seaport, a seaport, is located about 2.8 miles away and can be reached by car.

Denver to Kathmandu Flights

The cheapest times to fly from Denver to Kathmandu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Kathmandu are during the month of April. You can find some of the cheapest flights from Denver to Kathmandu with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Denver to Kathmandu

Sunday is one of the best days to book for cheap flights from Denver to Kathmandu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Denver to Kathmandu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Kathmandu in 2026. You can also book with separate airlines for your outbound and return journeys, from $653 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Kathmandu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Kathmandu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.