S$788 Cheap Flights from Washington to Kathmandu

View S$788 flight on Sat, 25 Oct, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Tribhuvan Intl. Airport (KTM)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Washington to Kathmandu (IAD-KTM)

Prices were available within the past 7 days and start at S$788 for one-way flights and S$2,138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Thu, 4 Dec - Sat, 17 Jan
IAD
Washington
KTM
Kathmandu
S$2,138 Return, found 6 days ago
S$2,138
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Sat, 17 Jan, priced at S$2,138 found 6 days ago
Swiss International Air Lines
Thu, 4 Dec - Sat, 17 Jan
IAD
Washington
KTM
Kathmandu
S$2,151 Return, found 6 days ago
S$2,151
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Sat, 17 Jan, priced at S$2,151 found 6 days ago
American Airlines
Thu, 4 Dec - Sat, 17 Jan
IAD
Washington
KTM
Kathmandu
S$2,191 Return, found 6 days ago
S$2,191
Return
found 6 days ago
Select American Airlines flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Sat, 17 Jan, priced at S$2,191 found 6 days ago
American Airlines
Thu, 4 Dec - Sat, 17 Jan
IAD
Washington
KTM
Kathmandu
S$2,195 Return, found 6 days ago
S$2,195
Return
found 6 days ago
Select American Airlines flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Sat, 17 Jan, priced at S$2,195 found 6 days ago
American Airlines
Thu, 4 Dec - Sat, 17 Jan
IAD
Washington
KTM
Kathmandu
S$2,198 Return, found 6 days ago
S$2,198
Return
found 6 days ago
Select American Airlines flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Sat, 17 Jan, priced at S$2,198 found 6 days ago
American Airlines
Thu, 4 Dec - Sat, 17 Jan
IAD
Washington
KTM
Kathmandu
S$2,202 Return, found 6 days ago
S$2,202
Return
found 6 days ago
Select American Airlines flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Sat, 17 Jan, priced at S$2,202 found 6 days ago
Swiss International Air Lines
Thu, 4 Dec - Fri, 19 Dec
IAD
Washington
KTM
Kathmandu
S$2,203 Return, found 1 day ago
S$2,203
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Fri, 19 Dec, priced at S$2,203 found 1 day ago
Etihad Airways
Thu, 4 Dec - Sat, 17 Jan
IAD
Washington
KTM
Kathmandu
S$2,206 Return, found 6 days ago
S$2,206
Return
found 6 days ago
Select Etihad Airways flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Sat, 17 Jan, priced at S$2,206 found 6 days ago
Turkish Airlines
Thu, 4 Dec - Sat, 17 Jan
IAD
Washington
KTM
Kathmandu
S$2,247 Return, found 6 days ago
S$2,247
Return
found 6 days ago
Select Turkish Airlines flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Sat, 17 Jan, priced at S$2,247 found 6 days ago
Qatar Airways
Thu, 4 Dec - Fri, 19 Dec
IAD
Washington
KTM
Kathmandu
S$2,249 Return, found 1 day ago
S$2,249
Return
found 1 day ago
Select Qatar Airways flight, departing Thu, 4 Dec from Washington to Kathmandu, returning Fri, 19 Dec, priced at S$2,249 found 1 day ago

Find the cheapest month to fly from Washington (IAD) to Kathmandu (KTM)

September is typically the cheapest month to fly

From S$1,162 - S$2,432 per traveller.

Frequently asked questions

How much is a flight from Dulles Intl. Airport to Tribhuvan Intl. Airport (KTM)?
Round-trip tickets from Washington Dulles Intl. Airport (IAD) to Tribhuvan Intl. Airport (KTM) start from S$2,138. This is based on fares offered within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAD to Tribhuvan Intl. Airport?
When it comes to cancellation fees, each airline has different terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from Dulles Intl. Airport to Tribhuvan Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to KTM flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to KTM?
Chantilly to Kathmandu is around 12,400 kilometres, so get ready to spend quite a while in the air. Don't forget to pack all the essentials, from your headphones to your hoodie. Throw in a few snacks to munch on throughout your trip too.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Tribhuvan Intl. Airport?
Flying nonstop between Dulles Intl. Airport and Tribhuvan Intl. Airport isn't possible at the moment. However, you'll still be able to find a flight to Kathmandu with at least one stop.
Are Washington Dulles Intl. Airport (IAD) to KTM flight tickets cheaper when they're purchased at the last minute?
It is possible to score a great last-minute deal from IAD to Tribhuvan Intl. Airport, but it's also possible to miss out altogether! As many airlines advertise prices up to a year in advance, it's worth keeping an eye on fares early and being ready to book when you see a bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can rest assured you're always getting the latest offers.

Travel information

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Tribhuvan Intl.
Return price
S$2,138
Distance
12319 km

Book with confidence

Book with confidence

Perfect flights from Washington to Kathmandu

Your Journey from Washington to Kathmandu

Start your unforgettable journey with Expedia. Our broad selection of flights from Washington to Kathmandu caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Etihad Airways, Turkish Airlines, Emirates, Cathay Pacific, United, Swiss International Air Lines, American Airlines, Qatar Airways. Our selection of flights from Washington Dulles Intl. to Tribhuvan Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Washington to Kathmandu Flights

Experience the joy of finding cheap flights from Washington Dulles Intl. to Tribhuvan Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$788 and roundtrip prices from S$2,138*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to Kathmandu with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Kathmandu

Picture yourself stepping off the plane in Kathmandu and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Washington to Kathmandu Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Washington to Kathmandu.
 

Beyond the Flight – Exploring Kathmandu

With Expedia, your adventure extends beyond the flight. Explore Kathmandu at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Washington to Kathmandu with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Washington to Kathmandu with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Washington to Kathmandu

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to Expedia members.