S$659 Cheap Flights from Washington to Kathmandu

View S$659 flight on Sat, 20 Sep, 2025Opens in a new window

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

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Cheap Flights from Washington to Kathmandu (IAD-KTM)

Prices were available within the past 7 days and start at S$659 for one-way flights and S$1,919 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Sat, 20 Sep - Sun, 5 Oct
IAD
Washington
KTM
Kathmandu
S$1,919 Return, found 1 day ago
S$1,919
Return
found 1 day ago
Select Air India flight, departing Sat, 20 Sep from Washington to Kathmandu, returning Sun, 5 Oct, priced at S$1,919 found 1 day ago
Air India
Sat, 20 Sep - Sun, 5 Oct
IAD
Washington
KTM
Kathmandu
S$1,940 Return, found 1 day ago
S$1,940
Return
found 1 day ago
Select Air India flight, departing Sat, 20 Sep from Washington to Kathmandu, returning Sun, 5 Oct, priced at S$1,940 found 1 day ago
Air India
Sat, 20 Sep - Sun, 5 Oct
IAD
Washington
KTM
Kathmandu
S$1,965 Return, found 1 day ago
S$1,965
Return
found 1 day ago
Select Air India flight, departing Sat, 20 Sep from Washington to Kathmandu, returning Sun, 5 Oct, priced at S$1,965 found 1 day ago
Air India
Sat, 20 Sep - Sun, 5 Oct
IAD
Washington
KTM
Kathmandu
S$1,986 Return, found 1 day ago
S$1,986
Return
found 1 day ago
Select Air India flight, departing Sat, 20 Sep from Washington to Kathmandu, returning Sun, 5 Oct, priced at S$1,986 found 1 day ago
Qatar Airways
Sat, 20 Sep - Sun, 5 Oct
IAD
Washington
KTM
Kathmandu
S$2,006 Return, found 1 day ago
S$2,006
Return
found 1 day ago
Select Qatar Airways flight, departing Sat, 20 Sep from Washington to Kathmandu, returning Sun, 5 Oct, priced at S$2,006 found 1 day ago
Air India
Sat, 20 Sep - Sun, 5 Oct
IAD
Washington
KTM
Kathmandu
S$2,024 Return, found 1 day ago
S$2,024
Return
found 1 day ago
Select Air India flight, departing Sat, 20 Sep from Washington to Kathmandu, returning Sun, 5 Oct, priced at S$2,024 found 1 day ago
Air India
Sat, 20 Sep - Sun, 5 Oct
IAD
Washington
KTM
Kathmandu
S$2,045 Return, found 1 day ago
S$2,045
Return
found 1 day ago
Select Air India flight, departing Sat, 20 Sep from Washington to Kathmandu, returning Sun, 5 Oct, priced at S$2,045 found 1 day ago
Delta
Mon, 11 Aug - Wed, 27 Aug
IAD
Washington
KTM
Kathmandu
S$2,059 Return, found 1 day ago
S$2,059
Return
found 1 day ago
Select Delta flight, departing Mon, 11 Aug from Washington to Kathmandu, returning Wed, 27 Aug, priced at S$2,059 found 1 day ago
Swiss International Air Lines
Tue, 29 Jul - Tue, 5 Aug
IAD
Washington
KTM
Kathmandu
S$2,096 Return, found 6 days ago
S$2,096
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Tue, 29 Jul from Washington to Kathmandu, returning Tue, 5 Aug, priced at S$2,096 found 6 days ago
United
Mon, 11 Aug - Wed, 27 Aug
IAD
Washington
KTM
Kathmandu
S$2,132 Return, found 1 day ago
S$2,132
Return
found 1 day ago
Select United flight, departing Mon, 11 Aug from Washington to Kathmandu, returning Wed, 27 Aug, priced at S$2,132 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$1,227 - S$1,964 per traveller.

Graph displaying average flight prices per month

Washington to Kathmandu route information
Origin airport
Washington Dulles Intl.
Destination airport
Tribhuvan Intl.
Return price
S$1,919
Distance
12319 km

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 Air India, Delta, United, Etihad Airways, Alaska Airlines, Swiss International Air Lines, Malaysia 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$659 and roundtrip prices from S$1,919*.
 

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.

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$1,919. 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.

Explore a world of travel with Expedia

Washington Airports

Washington

Ronald Reagan Washington National to Kathmandu
S$2,020.00
*Available to Expedia members.