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Kathmandu

$537+ Cheap flights from Washington 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KTM
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Washington to Kathmandu

Keep the following information in mind while searching for Washington to Kathmandu flight deals. Data was last updated September 15, 2025.

Round-trip from

$1,006
(Trip.com)

One-way from

$537
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$1,340
From Washington to Kathmandu Tribhuvan
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One-way flight from Washington to Kathmandu Tribhuvan
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Highest demand for flights based on searches. 6% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Washington to Kathmandu

Cheapest flights from Washington to Kathmandu
Explore the most affordable flight options available from Washington to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/13. 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.
Sun 9/212:20 pmSEA - KTM
2 stops30h 45mMultiple Airlines
Mon 9/294:40 pmKTM - SEA
2 stops32h 00mMultiple Airlines
Deal found 9/13$1,046
This Trip.com deal was found by Cheapflights users on 9/13. 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 10/288:20 pmSEA - KTM
2 stops33h 30mMultiple Airlines
Tue 11/111:45 pmKTM - SEA
2 stops64h 50mMultiple Airlines
Deal found 9/13$1,064
This Trip.com deal was found by Cheapflights users on 9/13. 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.
Wed 11/267:00 pmSEA - KTM
2 stops28h 10mMultiple Airlines
Wed 12/102:05 pmKTM - SEA
2 stops40h 45mMultiple Airlines
Deal found 9/13$1,081
This Trip.com deal was found by Cheapflights users on 9/13. 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 10/67:10 pmSEA - KTM
2 stops26h 00mMultiple Airlines
Thu 10/1610:55 amKTM - SEA
2 stops43h 05mMultiple Airlines
Deal found 9/13$1,094
This Trip.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/294:10 pmSEA - KTM
2 stops28h 55mMultiple Airlines
Sat 12/1310:50 amKTM - SEA
2 stops40h 15mMultiple Airlines
Deal found 9/13$1,112
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/308:00 pmSEA - KTM
2 stops33h 50mMultiple Airlines
Sun 12/141:45 pmKTM - SEA
2 stops41h 05mMultiple Airlines
Deal found 9/14$1,134
This Trip.com deal was found by Cheapflights users on 9/14. 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 11/312:10 amSEA - KTM
2 stops29h 05mMultiple Airlines
Wed 11/1911:10 amKTM - SEA
2 stops40h 30mMultiple Airlines
Deal found 9/14$1,144
This Trip.com deal was found by Cheapflights users on 9/12. 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 11/42:00 pmSEA - KTM
2 stops38h 50mMultiple Airlines
Thu 11/131:45 pmKTM - SEA
2 stops37h 20mMultiple Airlines
Deal found 9/12$1,149
This Turkish Airlines deal was found by Cheapflights users on 9/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:00 pmSEA - KTM
1 stop26h 25mTurkish Airlines
Tue 11/1812:35 pmKTM - SEA
1 stop42h 15mTurkish Airlines
Deal found 9/14$1,197
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/295:05 pmSEA - KTM
2 stops32h 15mMultiple Airlines
Wed 11/53:05 pmKTM - SEA
2 stops34h 20mMultiple Airlines
Deal found 9/14$1,210
This Indian Eagle deal was found by Cheapflights users on 9/12. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:05 pmSEA - KTM
1 stop36h 25mEmirates
Fri 12/1211:45 pmKTM - SEA
1 stop26h 35mEmirates
Deal found 9/12$1,211
This Trip.com deal was found by Cheapflights users on 9/13. 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 10/1410:30 amPDX - KTM
2 stops41h 30mMultiple Airlines
Sun 11/165:40 pmKTM - PDX
2 stops40h 55mMultiple Airlines
Deal found 9/13$1,238

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 September 15, 2025.
Use the filters below to find and compare flights from Washington to Kathmandu that are best for you.

Fly from

Washington

Fly to

Kathmandu

Route

Depart

Return

Price

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 10/14

10:30 am-4:45 pm

2 stops41h 30m

Kathmandu Tribhuvan

Sun 11/16

5:40 pm-8:50 pm

2 stops40h 55m

$1,238

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 11/6

7:00 pm-11:10 am

1 stop26h 25m

Kathmandu Tribhuvan

Tue 11/18

12:35 pm-5:05 pm

1 stop42h 15m

$1,243

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 11/5

5:55 pm-11:10 am

2 stops51h 30m

Kathmandu Tribhuvan

Wed 1/21

12:35 pm-8:38 pm

2 stops45h 48m

$1,276

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 11/4

10:40 am-4:25 pm

2 stops40h 00m

Kathmandu Tribhuvan

Tue 11/18

6:45 pm-8:50 pm

2 stops39h 50m

$1,288

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Mon 10/13

7:45 am-10:15 am

2 stops37h 45m

Kathmandu Tribhuvan

Mon 10/20

6:00 pm-8:50 pm

2 stops39h 35m

$1,295

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 10/30

8:00 pm-11:20 am

2 stops26h 35m

Kathmandu Tribhuvan

Sat 12/13

12:25 am-6:40 pm

2 stops32h 00m

$1,322

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 10/5

8:31 am-10:15 am

2 stops36h 59m

Kathmandu Tribhuvan

Mon 11/24

5:40 pm-10:25 pm

2 stops42h 30m

$1,336

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Sun 11/2

7:00 pm-11:10 am

1 stop26h 25m

Kathmandu Tribhuvan

Sun 11/16

12:35 pm-5:05 pm

1 stop42h 15m

$1,339

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sat 11/1

5:55 pm-11:10 am

2 stops52h 30m

Kathmandu Tribhuvan

Sun 11/30

12:35 pm-9:31 pm

2 stops46h 41m

$1,345

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 9/18

7:00 am-8:50 am

2 stops37h 05m

Kathmandu Tribhuvan

Thu 10/2

6:00 pm-8:35 pm

2 stops39h 20m

$1,353

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 38 results
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Best time to book a flight from Washington to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Washington 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 to Kathmandu

What is the cheapest month to book a flight from State of Washington to Kathmandu?

Currently, August is the cheapest month in which you can book a flight from State of Washington to Kathmandu (average of $1,206). Flying from State of Washington to Kathmandu in June is currently the most expensive (average of $1,683). 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.

What is the cheapest time of day to fly from WA to KTM?

Find hourly flight availability from Washington to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from State of Washington to Kathmandu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Washington 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?

    Located just 2.5 mi from the city center, Kathmandu Tribhuvan (KTM) is the airport most travelers will use when flying to Kathmandu from Washington.

  • How long is the flight from State of Washington to Kathmandu?

    Turkish Airlines and Qatar Airways can get you from State of Washington to Kathmandu in just under 26h 25m. Your travel time can differ by up to 13h 35m. The distance from State of Washington to Kathmandu is about 6962 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from State of Washington to Kathmandu?

    The most popular flight routes from State of Washington to Kathmandu are Seattle/Tacoma Intl - Kathmandu Tribhuvan, Portland - Kathmandu Tribhuvan and Spokane - Kathmandu Tribhuvan.

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

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

  • How can I find direct flights from Washington to Kathmandu?

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

  • Can I find deals for business class flights from Washington to Kathmandu?

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Kathmandu?

    Currently, August is the cheapest month in which you can book a flight from State of Washington to Kathmandu (average of $1,206). Flying from State of Washington to Kathmandu in June is currently the most expensive (average of $1,683). 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 to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Washington to Kathmandu

Discover the top 5 airlines that operate flights from Washington 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$910Average$1,413FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,092Average$1,347FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,138Average$1,341FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,153Average$1,774FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,172Average$1,437FlexibilityNo cancel feeOn-time72%

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