$688 Cheap Flights from Kathmandu (KTM) to Washington (IAD)

View $688 flight on Mon, Jul 14, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Kathmandu to Washington (KTM-IAD)

Prices were available within the past 7 days and start at $688 for one-way flights and $1,058 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Fri, Jul 4 - Sat, Aug 2
KTM
Kathmandu
IAD
Washington
$1,058 Roundtrip, found 6 days ago
$1,058
Roundtrip
found 6 days ago
Select Korean Air flight, departing Fri, Jul 4 from Kathmandu to Washington, returning Sat, Aug 2, priced at $1,058 found 6 days ago
Korean Air
Mon, Jun 23 - Sat, Aug 23
KTM
Kathmandu
IAD
Washington
$1,059 Roundtrip, found 2 days ago
$1,059
Roundtrip
found 2 days ago
Select Korean Air flight, departing Mon, Jun 23 from Kathmandu to Washington, returning Sat, Aug 23, priced at $1,059 found 2 days ago
Korean Air
Fri, Jun 13 - Sat, Aug 2
KTM
Kathmandu
IAD
Washington
$1,061 Roundtrip, found 4 days ago
$1,061
Roundtrip
found 4 days ago
Select Korean Air flight, departing Fri, Jun 13 from Kathmandu to Washington, returning Sat, Aug 2, priced at $1,061 found 4 days ago
flydubai
Thu, Sep 18 - Thu, Oct 30
KTM
Kathmandu
IAD
Washington
$1,133 Roundtrip, found 1 day ago
$1,133
Roundtrip
found 1 day ago
Select flydubai flight, departing Thu, Sep 18 from Kathmandu to Washington, returning Thu, Oct 30, priced at $1,133 found 1 day ago
KLM
Mon, Jun 23 - Sat, Aug 23
KTM
Kathmandu
IAD
Washington
$1,136 Roundtrip, found 2 days ago
$1,136
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Jun 23 from Kathmandu to Washington, returning Sat, Aug 23, priced at $1,136 found 2 days ago
flydubai
Sat, Oct 4 - Thu, Nov 6
KTM
Kathmandu
IAD
Washington
$1,197 Roundtrip, found 3 days ago
$1,197
Roundtrip
found 3 days ago
Select flydubai flight, departing Sat, Oct 4 from Kathmandu to Washington, returning Thu, Nov 6, priced at $1,197 found 3 days ago
KLM
Mon, Jun 23 - Mon, Jul 7
KTM
Kathmandu
IAD
Washington
$1,236 Roundtrip, found 2 days ago
$1,236
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Jun 23 from Kathmandu to Washington, returning Mon, Jul 7, priced at $1,236 found 2 days ago
Qatar Airways
Tue, May 20 - Wed, May 21
KTM
Kathmandu
IAD
Washington
$1,237 Roundtrip, found 3 days ago
$1,237
Roundtrip
found 3 days ago
Select Qatar Airways flight, departing Tue, May 20 from Kathmandu to Washington, returning Wed, May 21, priced at $1,237 found 3 days ago
Qatar Airways
Tue, May 20 - Thu, Nov 13
KTM
Kathmandu
IAD
Washington
$1,239 Roundtrip, found 2 days ago
$1,239
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Tue, May 20 from Kathmandu to Washington, returning Thu, Nov 13, priced at $1,239 found 2 days ago
Turkish Airlines
Tue, May 27 - Tue, Jun 24
KTM
Kathmandu
IAD
Washington
$1,324 Roundtrip, found 3 days ago
$1,324
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Tue, May 27 from Kathmandu to Washington, returning Tue, Jun 24, priced at $1,324 found 3 days ago
Flights from Kathmandu (KTM) to Washington (IAD)
Origin airport
Tribhuvan Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air China, Air India, Emirates, KLM, Qatar Airways, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$1,057
Distance
7699 mi

Kathmandu to Washington Flights

The cheapest times to fly from Kathmandu to Washington

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

The best time to book a flight from Kathmandu to Washington

Sunday is one of the best days to book for cheap flights from Kathmandu to Washington: 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 Kathmandu to Washington

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 Kathmandu to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $688 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 Kathmandu to Washington 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 Kathmandu to Washington 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.

Frequently asked questions

How much does a flight from Tribhuvan Intl. Airport (KTM) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from KTM to IAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from KTM to IAD?
The cheapest flights from KTM to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from KTM to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from KTM to IAD. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Tribhuvan Intl. Airport (KTM) to Washington Dulles Intl. Airport (IAD)?
Direct flights from Tribhuvan Intl. Airport (KTM) to Washington Dulles Intl. Airport (IAD) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with Expedia’s filters. Enter your travel details and select either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from KTM to IAD?
You’ll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tribhuvan Intl. Airport (KTM) to Washington Dulles Intl. Airport (IAD)?
Select a flight from Tribhuvan Intl. Airport (KTM) to Washington Dulles Intl. Airport (IAD) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time are on average 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 Tribhuvan Intl. Airport (KTM) to Washington Dulles Intl. Airport (IAD) last-minute?
Holding off until right before your break to book a ticket from KTM to IAD generally means paying more. While you may find some last-minute deals, they aren’t always guaranteed. Be flexible with your itinerary to maximize your chances of scoring a bargain.
Is it cheaper to book a KTM to IAD flight and hotel package?
You’ll generally save money by booking a KTM to IAD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one place. After selecting your ideal flights and accommodations, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Tribhuvan Intl. Airport (KTM) to Washington Dulles Intl. Airport (IAD)?
In most instances, you can cancel or modify your KTM to IAD flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline’s fees and policies on flight changes, or if you want more information, go to our Customer Service portal.

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*Available to One Key members.