Kathmandu

$509+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — KTM
May 9 — May 161
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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 April 9, 2026.

This Trip.com deal was found by Cheapflights users on 4/8. 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 9/19:00 pm
IAD
-
KTM
2 stops27h 05m
Multiple Airlines
Thu 10/1510:50 am
KTM
-
IAD
2 stops38h 35m
Multiple Airlines
Deal found 4/8$1,040
This Trip.com deal was found by Cheapflights users on 4/7. 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 5/79:00 pm
IAD
-
KTM
2 stops35h 25m
Multiple Airlines
Fri 5/221:25 pm
KTM
-
IAD
2 stops38h 30m
Multiple Airlines
Deal found 4/7$1,047
This Trip.com deal was found by Cheapflights users on 4/6. 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 5/49:00 pm
IAD
-
KTM
2 stops35h 25m
Multiple Airlines
Tue 6/238:10 am
KTM
-
IAD
2 stops41h 15m
Multiple Airlines
Deal found 4/6$1,060
This Trip.com deal was found by Cheapflights users on 4/9. 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 9/411:05 am
IAD
-
KTM
2 stops37h 00m
Multiple Airlines
Fri 9/1810:50 am
KTM
-
IAD
2 stops38h 35m
Multiple Airlines
Deal found 4/9$1,072
This Trip.com deal was found by Cheapflights users on 4/7. 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 4/239:00 pm
IAD
-
KTM
2 stops35h 25m
Multiple Airlines
Fri 5/81:25 pm
KTM
-
IAD
2 stops38h 30m
Multiple Airlines
Deal found 4/7$1,077
This Trip.com deal was found by Cheapflights users on 4/7. 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 11/98:05 pm
IAD
-
KTM
2 stops33h 20m
Multiple Airlines
Thu 12/105:10 pm
KTM
-
IAD
2 stops25h 55m
Multiple Airlines
Deal found 4/7$1,094
This Trip.com deal was found by Cheapflights users on 4/7. 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 4/279:00 pm
IAD
-
KTM
2 stops32h 55m
Multiple Airlines
Sat 7/44:40 pm
KTM
-
IAD
2 stops32h 45m
Multiple Airlines
Deal found 4/7$1,139
This Trip.com deal was found by Cheapflights users on 4/9. 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 5/63:10 pm
IAD
-
KTM
2 stops41h 15m
Multiple Airlines
Thu 5/281:25 pm
KTM
-
IAD
2 stops30h 05m
Multiple Airlines
Deal found 4/9$1,149
This Trip.com deal was found by Cheapflights users on 4/8. 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 4/249:00 pm
IAD
-
KTM
2 stops35h 25m
Multiple Airlines
Sat 5/91:25 pm
KTM
-
IAD
2 stops38h 30m
Multiple Airlines
Deal found 4/8$1,164
This Trip.com deal was found by Cheapflights users on 4/9. 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 stops36h 25m
Multiple Airlines
Sun 12/131:15 pm
KTM
-
IAD
2 stops37h 25m
Multiple Airlines
Deal found 4/9$1,177
This Trip.com deal was found by Cheapflights users on 4/6. 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 4/239:00 pm
IAD
-
KTM
2 stops35h 25m
Multiple Airlines
Thu 5/148:10 am
KTM
-
IAD
2 stops43h 45m
Multiple Airlines
Deal found 4/6$1,178
This Trip.com deal was found by Cheapflights users on 4/6. 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.
Sun 4/129:00 pm
IAD
-
KTM
2 stops35h 25m
Multiple Airlines
Sun 5/31:25 pm
KTM
-
IAD
2 stops38h 30m
Multiple Airlines
Deal found 4/6$1,181

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 April 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,047
(Trip.com)

One-way from

$509
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$1,446
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. 7% potential increase in price ($105 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Average for round-trip flights in April 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 April 9, 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

Sun 5/10

10:55 am-6:55 pm

1 stop22h 15m

Kathmandu Tribhuvan

Mon 6/15

12:35 am-8:40 am

1 stop41h 50m

$1,428
Quickest round-trip

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Mon 9/28

10:55 am-6:55 pm

1 stop22h 15m

Kathmandu Tribhuvan

Fri 10/2

3:35 pm-8:40 am

1 stop26h 50m

$1,429

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sun 4/26

9:00 pm-8:40 am

1 stop25h 55m

Kathmandu Tribhuvan

Mon 5/11

7:10 pm-6:10 pm

1 stop32h 45m

$1,493

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Sat 8/8

10:55 am-11:35 pm

1 stop26h 55m

Kathmandu Tribhuvan

Wed 8/26

9:05 am-8:40 am

1 stop33h 20m

$1,529

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 10/2

11:15 am-4:45 pm

1 stop19h 45m

Kathmandu Tribhuvan

Wed 10/28

6:45 pm-4:55 pm

1 stop31h 55m

$1,533

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Fri 4/24

9:00 pm-8:40 am

1 stop25h 55m

Kathmandu Tribhuvan

Mon 5/11

7:10 pm-6:10 pm

1 stop32h 45m

$1,533

Washington, D.C.Kathmandu

IAD - KTM

IADKTM

Washington, D.C. Dulles Intl

Thu 5/14

10:55 am-11:35 pm

1 stop26h 55m

Kathmandu Tribhuvan

Sat 6/13

9:05 am-8:40 am

1 stop33h 20m

$1,536

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Thu 9/24

11:25 am-9:50 am

2 stops36h 40m

Kathmandu Tribhuvan

Mon 9/28

6:45 pm-11:32 pm

2 stops38h 32m

$1,549

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Wed 5/6

12:21 pm-8:40 am

2 stops34h 34m

Kathmandu Tribhuvan

Thu 5/28

7:10 pm-12:11 am

2 stops38h 46m

$1,570

BaltimoreKathmandu

BWI - KTM

BWIKTM

Baltimore/Washington

Mon 4/20

11:31 am-8:40 am

2 stops35h 24m

Kathmandu Tribhuvan

Thu 5/21

7:10 pm-11:55 pm

2 stops38h 30m

$1,593

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star

*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?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Kathmandu. Price data was last updated on April 3, 2026.

The best time to book flights from Washington, D.C. to Kathmandu is 79 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 $791). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $1,235). 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 $1,098.

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 New Delhi (DEL) have the shortest average one-way travel time for 1-stop routes: 22h 19m.

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 New Delhi (DEL) offer the fastest connection on this route, with an average layover time of 4h 39m.

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 April 9, 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.

Overall

8.1

Comfort

8.0

Food

7.9

Entertainment

8.2

Crew

8.3

Boarding

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.

Overall

8.1

Comfort

8.0

Food

7.9

Entertainment

8.2

Crew

8.3

Boarding

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.

Overall

8.1

Comfort

8.0

Food

7.9

Entertainment

8.2

Crew

8.3

Boarding

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.

Overall

8.1

Comfort

8.0

Food

7.9

Entertainment

8.2

Crew

8.3

Boarding

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.

Overall

8.1

Comfort

8.0

Food

7.9

Entertainment

8.2

Crew

8.3

Boarding

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.

Overall

8.1

Comfort

8.0

Food

7.9

Entertainment

8.2

Crew

8.3

Boarding

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 $1,428, Emirates can have you in Kathmandu from Washington, D.C. in 22h 15m. 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 $647, 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 53% 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 $382. Users have also found prices from $385 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 New Delhi?

    Most New Delhi visitors opt to spend their time at Karol Bagh, Lajpat Nagar Central Market, and Gurudwara Bangla Sahib. Karol Bagh, Lajpat Nagar Central Market and Gurudwara Bangla Sahib are located about 8.7 mi, 8.7 mi, and 8.2 mi, respectively from New Delhi Indira Gandhi Intl if you are interested in checking them out. Travelers in need of a car in New Delhi can rent one for about $66 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 $791). Flying from Washington, D.C. to Kathmandu in June is currently the most expensive (average of $1,235). 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 April 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
IndiGoCheapest$647Average$1,270FlexibilityNo cancel feeOn-time80%
Air IndiaCheapest$825Average$1,191FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$1,077Average$1,468FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,092Average$1,290FlexibilityNo cancel feeOn-time75%
Etihad AirwaysCheapest$1,242Average$1,664FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,252Average$1,444FlexibilityNo cancel feeOn-time68%
SWISSCheapest$1,324Average$1,659FlexibilityNo cancel feeOn-time79%

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