$647 Cheap Flights from Washington (DCA) to Kathmandu (KTM)

View $647 flight on Mon, Feb 16, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM)

Cheap Flights from Washington to Kathmandu (DCA-KTM)

Prices were available within the past 7 days and start at $647 for one-way flights and $1,276 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Feb 3 - Wed, Mar 4
DCA
Washington
KTM
Kathmandu
$1,276 Roundtrip, found 6 days ago
$1,276
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 3 from Washington to Kathmandu, returning Wed, Mar 4, priced at $1,276 found 6 days ago
United
Wed, Jan 28 - Wed, Feb 11
DCA
Washington
KTM
Kathmandu
$1,277 Roundtrip, found 2 days ago
$1,277
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 28 from Washington to Kathmandu, returning Wed, Feb 11, priced at $1,277 found 2 days ago
Cathay Pacific
Tue, Oct 28 - Tue, Dec 16
DCA
Washington
KTM
Kathmandu
$1,282 Roundtrip, found 5 days ago
$1,282
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Tue, Oct 28 from Washington to Kathmandu, returning Tue, Dec 16, priced at $1,282 found 5 days ago
United
Tue, Feb 3 - Wed, Mar 4
DCA
Washington
KTM
Kathmandu
$1,330 Roundtrip, found 6 days ago
$1,330
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 3 from Washington to Kathmandu, returning Wed, Mar 4, priced at $1,330 found 6 days ago
Cathay Pacific
Fri, Jan 30 - Mon, Mar 2
DCA
Washington
KTM
Kathmandu
$1,332 Roundtrip, found 5 days ago
$1,332
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Fri, Jan 30 from Washington to Kathmandu, returning Mon, Mar 2, priced at $1,332 found 5 days ago
Cathay Pacific
Wed, Nov 12 - Thu, Apr 9
DCA
Washington
KTM
Kathmandu
$1,339 Roundtrip, found 8 hours ago
$1,339
Roundtrip
found 8 hours ago
Select Cathay Pacific flight, departing Wed, Nov 12 from Washington to Kathmandu, returning Thu, Apr 9, priced at $1,339 found 8 hours ago
Alaska Airlines
Mon, Feb 2 - Mon, Mar 2
DCA
Washington
KTM
Kathmandu
$1,344 Roundtrip, found 4 days ago
$1,344
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Washington to Kathmandu, returning Mon, Mar 2, priced at $1,344 found 4 days ago
Cathay Pacific
Mon, Jan 26 - Mon, Feb 23
DCA
Washington
KTM
Kathmandu
$1,357 Roundtrip, found 6 days ago
$1,357
Roundtrip
found 6 days ago
Select Cathay Pacific flight, departing Mon, Jan 26 from Washington to Kathmandu, returning Mon, Feb 23, priced at $1,357 found 6 days ago
American Airlines
Wed, Nov 5 - Tue, Nov 25
DCA
Washington
KTM
Kathmandu
$1,423 Roundtrip, found 13 hours ago
$1,423
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Nov 5 from Washington to Kathmandu, returning Tue, Nov 25, priced at $1,423 found 13 hours ago
Qatar Airways
Tue, Feb 3 - Wed, Mar 4
DCA
Washington
KTM
Kathmandu
$1,833 Roundtrip, found 6 days ago
$1,833
Roundtrip
found 6 days ago
Select Qatar Airways flight, departing Tue, Feb 3 from Washington to Kathmandu, returning Wed, Mar 4, priced at $1,833 found 6 days ago

Alternative airports near Kathmandu

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Tribhuvan Intl. KTM. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $1,721
KTM
Tribhuvan Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $1,721

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM) cost?
Secure a cheap one-way flight from $647 or cheap return flight from $1,276 from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM)?
February is the most affordable month to fly from DCA to KTM. Timing your trip outside of the busy season is often the key to landing a great deal.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from DCA to KTM. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM)?
Direct flights from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to KTM?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM)?
To avoid potential delays on the Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM) route, aim to fly before 3 PM. Later flights are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM) last-minute?
Holding off until just before your departure to book a ticket from DCA to KTM generally means paying more. While you might find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book a DCA to KTM flight and hotel package?
Compared with arranging hotels and flights separately, booking a DCA to KTM flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of hotels, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Tribhuvan Intl. Airport (KTM)?
Usually, it's possible to reschedule or cancel your DCA to KTM flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Tribhuvan Intl.
Airlines serving
Cathay Pacific, Emirates, Korean Air, Qatar Airways
Roundtrip price
$1,276
Distance
7700 mi

Book with confidence

Washington to Kathmandu Flights

The cheapest times to fly from Washington 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 Washington to Kathmandu are during the month of February. You can find some of the cheapest flights from Washington to Kathmandu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Kathmandu

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington to Kathmandu in 2025. You can also book with separate airlines for your outbound and return journeys, from $647 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 Washington 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 Washington 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.

 

Washington to Kathmandu Flights

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*Available to One Key members.