Kathmandu

$551+ Cheap flights from Washington, D.C. (WAS) to Kathmandu (KTM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — KTM
Jun 14 — Jun 211
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Cheap flight deals from Washington, D.C. to Kathmandu

Cheapest flights from Washington, D.C. to Kathmandu
Explore the most affordable flight options available from Washington, D.C. to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2026.

This Trip.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:40 am
IAD
-
KTM
2 stops42h 45m
Multiple Airlines
Sat 12/510:50 am
KTM
-
IAD
2 stops32h 15m
Multiple Airlines
Deal found 5/14$1,169
This Trip.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:10 pm
IAD
-
KTM
3 stops37h 15m
Multiple Airlines
Mon 8/314:40 pm
KTM
-
IAD
2 stops26h 50m
Multiple Airlines
Deal found 5/13$1,177
This Trip.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/283:10 pm
IAD
-
KTM
2 stops35h 55m
Multiple Airlines
Thu 6/188:10 am
KTM
-
IAD
2 stops35h 20m
Multiple Airlines
Deal found 5/11$1,198
This Trip.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:50 pm
IAD
-
KTM
2 stops35h 05m
Multiple Airlines
Mon 8/312:05 pm
KTM
-
IAD
2 stops35h 20m
Multiple Airlines
Deal found 5/11$1,199
This Trip.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:15 am
IAD
-
KTM
2 stops22h 50m
Multiple Airlines
Tue 11/171:15 pm
KTM
-
IAD
2 stops29h 50m
Multiple Airlines
Deal found 5/14$1,201
This Trip.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:10 pm
IAD
-
KTM
2 stops41h 15m
Multiple Airlines
Sat 6/208:10 am
KTM
-
IAD
2 stops35h 20m
Multiple Airlines
Deal found 5/10$1,206
This Trip.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:10 pm
IAD
-
KTM
2 stops42h 55m
Multiple Airlines
Fri 7/104:40 pm
KTM
-
IAD
2 stops26h 50m
Multiple Airlines
Deal found 5/11$1,216
This Trip.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:05 pm
IAD
-
KTM
2 stops33h 20m
Multiple Airlines
Sat 11/2810:50 am
KTM
-
IAD
2 stops32h 15m
Multiple Airlines
Deal found 5/14$1,232
This Trip.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:05 pm
IAD
-
KTM
2 stops33h 20m
Multiple Airlines
Tue 12/110:50 am
KTM
-
IAD
2 stops32h 15m
Multiple Airlines
Deal found 5/13$1,233
This Trip.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:05 pm
IAD
-
KTM
2 stops33h 20m
Multiple Airlines
Sat 11/2810:50 am
KTM
-
IAD
2 stops32h 15m
Multiple Airlines
Deal found 5/14$1,253
This Trip.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/83:10 pm
IAD
-
KTM
2 stops41h 15m
Multiple Airlines
Tue 6/238:10 am
KTM
-
IAD
2 stops35h 20m
Multiple Airlines
Deal found 5/14$1,257
This FlightHub deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:20 am
DCA
-
KTM
2 stops24h 25m
Multiple Airlines
Sat 9/1210:05 am
KTM
-
DCA
2 stops46h 39m
Multiple Airlines
Deal found 5/15$1,402

Find flight deals from Washington, D.C. to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Kathmandu (KTM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,198
(Trip.com)

One-way from

$551
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$1,608
Provider with most accurate pricing for Washington, D.C. (WAS)-Kathmandu Tribhuvan flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Kathmandu Tribhuvan flights.
From Washington, D.C. (WAS) to Kathmandu Tribhuvan
One-way flight from Washington, D.C. (WAS) to Kathmandu Tribhuvan
Highest demand for flights based on searches. 11% potential increase in price ($191 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Kathmandu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 15, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 6/10

3:10 pm-6:10 pm

2 stops41h 15m

Kathmandu Tribhuvan

Sat 6/20

8:10 am-9:45 am

2 stops35h 20m

$1,206

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 8/28

10:55 am-11:35 pm

1 stop26h 55m

Kathmandu Tribhuvan

Tue 9/1

9:05 am-8:40 am

1 stop33h 20m

$1,540

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 8/1

10:55 am-11:35 pm

1 stop26h 55m

Kathmandu Tribhuvan

Mon 8/31

9:05 am-8:40 am

1 stop33h 20m

$1,593

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Sun 11/1

10:00 am-11:00 pm

2 stops26h 15m

Kathmandu Tribhuvan

Sat 11/28

12:05 am-10:17 pm

2 stops32h 57m

$1,604

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Tue 10/13

6:38 am-11:45 pm

2 stops31h 22m

Kathmandu Tribhuvan

Wed 11/18

12:15 am-9:29 pm

2 stops31h 59m

$1,606

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Tue 10/6

6:38 am-11:45 pm

2 stops31h 22m

Kathmandu Tribhuvan

Wed 10/21

12:45 am-10:57 pm

2 stops31h 57m

$1,606

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 9/17

6:41 pm-9:50 am

2 stops29h 24m

Kathmandu Tribhuvan

Wed 11/18

6:45 pm-3:55 pm

1 stop31h 55m

$1,730

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Tue 9/15

6:41 pm-8:50 am

2 stops28h 24m

Kathmandu Tribhuvan

Thu 11/19

6:45 pm-8:20 am

1 stop24h 20m

$1,730

Washington, D.C.Kathmandu

DCA - KTM

DCAKTM

Washington, D.C. Reagan-National

Sun 10/18

11:15 am-11:45 pm

2 stops26h 45m

Kathmandu Tribhuvan

Fri 11/13

7:20 am-9:29 pm

2 stops48h 54m

$1,757

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Wed 9/9

12:30 pm-9:30 pm

3 stops47h 15m

Kathmandu Tribhuvan

Mon 10/5

11:10 pm-7:10 pm

3 stops53h 45m

$1,763

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Kathmandu

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Kathmandu in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
BusinessClassPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Kathmandu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Kathmandu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Kathmandu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Kathmandu flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Kathmandu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Kathmandu

How far ahead should I book a flight from Washington, D.C. to Kathmandu?

The best time to book flights from Washington, D.C. to Kathmandu is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Kathmandu?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Kathmandu (average of $129). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $2,144). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Washington, D.C. to Kathmandu?

What’s the top layover airport for flights from Washington, D.C. to Kathmandu?

Share of 1-stop round-trip flights from Washington, D.C. to Kathmandu chosen by Cheapflights users in the past 12 months, using the same layover each way.

Doha (DOH) – chosen by Cheapflights users on 68% of 1-stop itineraries from Washington, D.C. to Kathmandu on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Kathmandu?

Average round-trip fare for 1-stop flights from Washington, D.C. to Kathmandu, chosen by Cheapflights users in the past 12 months, with the same layover each way.

New Delhi (DEL) is the most affordable 1-stop option, with an average round-trip price of $1,134.

What’s the fastest layover option from Washington, D.C. to Kathmandu?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Kathmandu, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Doha (DOH) have the shortest average one-way travel time for 1-stop routes: 19h 55m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Kathmandu?

Average layover duration for 1-stop one-way flights from Washington, D.C. to Kathmandu, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Doha (DOH) offer the fastest connection on this route, with an average layover time of 3h 13m.

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kathmandu. Reviews last updated May 15, 2026.
Read through reviews of airlines operating flights from Washington, D.C. to Kathmandu, such as Emirates,Qatar Airways, andTurkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.2

Boarding

8.1

Crew

8.3

Food

7.9

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

Entertainment

8.2

Boarding

8.1

Crew

8.3

Food

7.9

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

Entertainment

8.2

Boarding

8.1

Crew

8.3

Food

7.9

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

Entertainment

8.2

Boarding

8.1

Crew

8.3

Food

7.9

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

Entertainment

8.2

Boarding

8.1

Crew

8.3

Food

7.9

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

Entertainment

8.2

Boarding

8.1

Crew

8.3

Food

7.9

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Kathmandu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Kathmandu from Washington, D.C.?

    If you book a flight to Kathmandu from Washington, D.C., you will be flying to Tribhuvan, which is the city’s only airport. Kathmandu Tribhuvan (KTM) is located 2.5 mi from the center of Kathmandu. There are 0 flights from Washington, D.C. to Tribhuvan per day from 7 different airlines.

  • How long is the flight from Washington, D.C. to Kathmandu?

    For as low as $1,540, Emirates can have you in Kathmandu from Washington, D.C. in 26h 55m. The distance between Washington, D.C. and Kathmandu is about 7695 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. to Kathmandu round-trip?

    IndiGo, at $549, was found to be the cheapest airline from Washington, D.C. to Kathmandu.Alternate airlines to your destination round-trip include Air India and Turkish Airlines. You may be able to fly from Washington, D.C. to Kathmandu for 61% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to Kathmandu one-way?

    For one-way options, check prices for IndiGo. According to our data, you can fly for as low as $369. Users have also found prices from $415 and $485 on Air India and Turkish Airlines, respectively.

  • What are the most popular routes from Washington, D.C. to Kathmandu?

  • Where are the most common layover locations when flying from Washington, D.C. to Kathmandu?

  • What are some popular points of interest to see during a layover in Istanbul?

    Most Istanbul visitors opt to spend their time at Taksim Square, Laleli Camii, and Sultan Ahmet Camii. Taksim Square, Laleli Camii and Sultan Ahmet Camii are located about 20.8 mi, 21.5 mi, and 22.3 mi, respectively from Istanbul if you are interested in checking them out. Travelers in need of a car in Istanbul can rent one for about $43 per day.

  • Where are the least popular layover locations for Washington, D.C. to Kathmandu flights?

  • Can I find deals for flights from Washington, D.C. to Kathmandu that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Kathmandu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Kathmandu.

  • Can I find deals for business class flights from Washington, D.C. to Kathmandu?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to Kathmandu?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Kathmandu (average of $129). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $2,144). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

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Alternative routes for Washington, D.C. to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Washington, D.C. to Kathmandu

Discover the top 7 airlines that operate flights from Washington, D.C. to Kathmandu. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
IndiGoCheapest$549Average$1,211FlexibilityNo cancel feeOn-time80%
Air IndiaCheapest$818Average$1,148FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$1,085Average$1,483FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,093Average$1,339FlexibilityNo cancel feeOn-time75%
Etihad AirwaysCheapest$1,242Average$1,664FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,256Average$1,438FlexibilityNo cancel feeOn-time68%
SWISSCheapest$1,611Average$1,659FlexibilityNo cancel feeOn-time79%

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