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Kathmandu

$454+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KTM
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$957
(oojo)

One-way from

$454
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$1,559
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. 7% potential increase in price ($108 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 July 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 July 31, 2025.

This lastminute.com deal was found by Cheapflights users on 7/31. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/77:10 pmSEA - KTM
1 stop22h 20mTurkish Airlines
Tue 9/237:40 amKTM - SEA
1 stop22h 20mTurkish Airlines
Deal found 7/31$976
This Trip.com deal was found by Cheapflights users on 7/30. 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 8/307:10 pmSEA - KTM
2 stops34h 15mMultiple Airlines
Sun 9/141:25 pmKTM - SEA
2 stops57h 55mMultiple Airlines
Deal found 7/30$1,028
This oojo deal was found by Cheapflights users on 7/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/142:36 pmGEG - KTM
2 stops54h 54mQatar Airways
Tue 10/146:00 pmKTM - GEG
2 stops55h 49mQatar Airways
Deal found 7/30$1,086
This oojo deal was found by Cheapflights users on 7/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:45 amSEA - KTM
1 stop23h 20mSingapore Airlines
Thu 1/2211:00 pmKTM - SEA
1 stop21h 55mSingapore Airlines
Deal found 7/30$1,137
This oojo deal was found by Cheapflights users on 7/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:30 amPDX - KTM
2 stops33h 35mQatar Airways
Wed 11/195:40 pmKTM - PDX
2 stops36h 55mQatar Airways
Deal found 7/29$1,289
This Gurufare deal was found by Cheapflights users on 7/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/194:05 pmSEA - KTM
1 stop32h 10mEmirates
Mon 12/811:45 pmKTM - SEA
1 stop26h 35mEmirates
Deal found 7/30$1,297
This oojo deal was found by Cheapflights users on 7/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:20 amPDX - KTM
3 stops48h 35mSingapore Airlines
Wed 12/1711:00 pmKTM - PDX
2 stops25h 38mSingapore Airlines
Deal found 7/29$1,609
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:40 pmPDX - KTM
2 stops26h 20mMultiple Airlines
Thu 9/44:35 pmKTM - PDX
3 stops34h 56mMultiple Airlines
Deal found 7/29$1,630
This Cathay Pacific deal was found by Cheapflights users on 7/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/235:30 pmPDX - KTM
2 stops38h 45mCathay Pacific
Sun 1/1111:15 pmKTM - PDX
2 stops35h 08mCathay Pacific
Deal found 7/28$1,878
This KAYAK deal was found by Cheapflights users on 7/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:00 amPUW - KTM
2 stops38h 05mQatar Airways
Tue 10/147:05 pmKTM - PUW
2 stops42h 00mQatar Airways
Deal found 7/30$2,245
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:41 amGEG - KTM
2 stops30h 54mMultiple Airlines
Sat 1/175:30 pmKTM - GEG
3 stops40h 23mMultiple Airlines
Deal found 7/31$2,902

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 July 31, 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

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 1/1

7:00 pm-11:10 am

1 stop26h 25m

Kathmandu Tribhuvan

Thu 1/29

12:35 pm-5:05 pm

1 stop42h 15m

$957

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Sat 8/30

7:10 pm-6:10 pm

2 stops34h 15m

Kathmandu Tribhuvan

Sun 9/14

1:25 pm-10:35 am

2 stops57h 55m

$1,028

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 1/1

8:45 am-9:50 pm

1 stop23h 20m

Kathmandu Tribhuvan

Thu 1/29

11:00 pm-1:52 pm

2 stops28h 37m

$1,030

SpokaneKathmandu

GEG - KTM

GEGKTM

Spokane

Sun 9/14

2:36 pm-10:15 am

2 stops54h 54m

Kathmandu Tribhuvan

Tue 10/14

6:00 pm-1:04 pm

2 stops55h 49m

$1,086

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Mon 1/5

4:05 pm-10:40 pm

1 stop40h 50m

Kathmandu Tribhuvan

Mon 1/19

7:15 pm-12:35 pm

1 stop31h 05m

$1,251

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 10/15

10:30 am-8:50 am

2 stops33h 35m

Kathmandu Tribhuvan

Wed 11/19

5:40 pm-4:50 pm

2 stops36h 55m

$1,289

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 11/12

7:20 am-9:40 pm

3 stops48h 35m

Kathmandu Tribhuvan

Wed 12/17

11:00 pm-10:53 am

2 stops25h 38m

$1,609

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 8/28

7:40 pm-10:45 am

2 stops26h 20m

Kathmandu Tribhuvan

Thu 9/4

4:35 pm-2:46 pm

3 stops34h 56m

$1,630

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 11/23

5:30 pm-10:00 pm

2 stops38h 45m

Kathmandu Tribhuvan

Sun 1/11

11:15 pm-8:38 pm

2 stops35h 08m

$1,878

PullmanKathmandu

PUW - KTM

PUWKTM

Pullman Moscow Regional

Sun 9/14

6:00 am-8:50 am

2 stops38h 05m

Kathmandu Tribhuvan

Tue 10/14

7:05 pm-12:20 am

2 stops42h 00m

$2,245

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 18 results
1
2

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, September is the cheapest month in which you can book a flight from State of Washington to Kathmandu (average of $1,237). Flying from State of Washington to Kathmandu in June is currently the most expensive (average of $1,684). 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 July 31, 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.

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 July 31, 2025.
Read through reviews of airlines operating flights from Washington to Kathmandu, such as Emirates, Singapore Airlines, and Cathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Boarding

8.1

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,300 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Boarding

8.1

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Singapore Airlines
8.1
Very good
1,338 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Boarding

8.1

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Cathay Pacific
7.6
Good
949 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Boarding

8.1

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,609 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Boarding

8.1

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
3,933 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Boarding

8.1

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

  • What are the cheapest airlines to fly from State of Washington to Kathmandu one-way?

    For one-way options, check prices for Qatar Airways. According to our data, you can fly for as low as $641. Users have also found prices from $675 and $725 on Singapore Airlines and Cathay Pacific, respectively.

  • 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, September is the cheapest month in which you can book a flight from State of Washington to Kathmandu (average of $1,237). Flying from State of Washington to Kathmandu in June is currently the most expensive (average of $1,684). 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?

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Alternative routes for Washington to Kathmandu

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$911Average$1,423FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,097Average$1,354FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,138Average$1,759FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,168Average$1,560FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,179Average$1,437FlexibilityNo cancel feeOn-time72%

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