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Kathmandu

$526+ 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KTM
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,093
(Trip.com)

One-way from

$526
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,273
Provider with most accurate pricing for Seattle/Tacoma Intl-Kathmandu Tribhuvan flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kathmandu Tribhuvan flights.
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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. 17% potential increase in price ($307 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/19. 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 10/289:45 amSEA - KTM
1 stop23h 10mSingapore Airlines
Tue 11/1111:00 pmKTM - SEA
2 stops38h 40mSingapore Airlines
Deal found 2/19$1,078
This Singapore Airlines deal was found by Cheapflights users on 2/20. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:59 pmSEA - KTM
2 stops38h 56mMultiple Airlines
Wed 10/1511:10 pmKTM - SEA
1 stop22h 20mMultiple Airlines
Deal found 2/20$1,080
This Trip.com deal was found by Cheapflights users on 2/20. 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 4/69:40 amPDX - KTM
2 stops36h 15mMultiple Airlines
Sun 4/1311:40 amKTM - PDX
2 stops45h 41mMultiple Airlines
Deal found 2/20$1,093
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Wed 5/77:10 pmSEA - KTM
1 stop22h 05mTurkish Airlines
Thu 5/227:25 amKTM - SEA
1 stop22h 35mTurkish Airlines
Deal found 2/20$1,144
This oojo deal was found by Cheapflights users on 2/20. 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.
Tue 5/136:59 pmSEA - KTM
2 stops38h 26mCathay Pacific
Mon 6/211:20 pmKTM - SEA
2 stops35h 25mCathay Pacific
Deal found 2/20$1,154
This Gurufare deal was found by Cheapflights users on 2/19. 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.
Sat 9/66:00 amGEG - KTM
2 stops27h 00mSingapore Airlines
Sat 9/1311:00 pmKTM - GEG
2 stops26h 35mSingapore Airlines
Deal found 2/19$1,199
This FlightHub deal was found by Cheapflights users on 2/19. 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.
Sat 9/66:00 amPDX - KTM
2 stops27h 00mSingapore Airlines
Fri 10/2411:10 pmKTM - PDX
2 stops25h 45mSingapore Airlines
Deal found 2/19$1,204
This oojo deal was found by Cheapflights users on 2/19. 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 2/239:16 pmPDX - KTM
2 stops47h 29mQatar Airways
Wed 3/511:45 amKTM - PDX
2 stops48h 03mQatar Airways
Deal found 2/19$1,418
This oojo deal was found by Cheapflights users on 2/20. 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.
Sat 3/226:05 pmPDX - KTM
2 stops60h 55mCathay Pacific
Tue 5/2011:20 pmKTM - PDX
2 stops30h 11mCathay Pacific
Deal found 2/20$1,441
This Singapore Airlines deal was found by Cheapflights users on 2/19. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:40 amGEG - KTM
3 stops50h 20mMultiple Airlines
Sat 9/1311:00 pmKTM - GEG
2 stops51h 33mMultiple Airlines
Deal found 2/19$1,472
This oojo deal was found by Cheapflights users on 2/19. 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 5/2810:30 amPDX - KTM
2 stops43h 10mEmirates
Tue 8/261:10 amKTM - PDX
2 stops33h 59mEmirates
Deal found 2/19$2,341

Find flights from Washington to Kathmandu within your budget

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 February 20, 2025.

Fly from

Washington

Fly to

Kathmandu

Route

Depart

Return

Price

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 4/6

9:40 am-10:40 am

2 stops36h 15m

Kathmandu Tribhuvan

Sun 4/13

11:40 am-8:36 pm

2 stops45h 41m

$1,093

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Wed 5/7

7:10 pm-6:00 am

1 stop22h 05m

Kathmandu Tribhuvan

Thu 5/22

7:25 am-5:15 pm

1 stop22h 35m

$1,144

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 5/13

6:59 pm-10:10 pm

2 stops38h 26m

Kathmandu Tribhuvan

Mon 6/2

11:20 pm-10:00 pm

2 stops35h 25m

$1,154

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 5/13

10:15 am-9:45 pm

1 stop22h 45m

Kathmandu Tribhuvan

Mon 6/2

11:00 pm-8:45 am

1 stop22h 30m

$1,162

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 4/1

5:45 am-8:05 pm

2 stops25h 35m

Kathmandu Tribhuvan

Tue 4/8

11:40 am-9:50 am

2 stops34h 55m

$1,174

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 2/23

9:16 pm-10:30 am

2 stops47h 29m

Kathmandu Tribhuvan

Wed 3/5

11:45 am-10:03 pm

2 stops48h 03m

$1,418

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sat 3/22

6:05 pm-7:45 pm

2 stops60h 55m

Kathmandu Tribhuvan

Tue 5/20

11:20 pm-4:46 pm

2 stops30h 11m

$1,441

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Mon 4/7

4:30 pm-4:45 pm

1 stop35h 30m

Kathmandu Tribhuvan

Thu 7/24

6:00 pm-12:45 pm

1 stop31h 30m

$1,779

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Fri 3/21

5:05 pm-4:05 pm

2 stops34h 15m

Kathmandu Tribhuvan

Fri 6/6

1:10 am-1:25 pm

1 stop25h 00m

$1,977

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 5/7

7:00 am-9:45 pm

2 stops50h 00m

Kathmandu Tribhuvan

Tue 5/20

11:00 pm-9:45 am

2 stops47h 30m

$2,197

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 14 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.

Travel insights for flights from Washington to Kathmandu

Get recent, data-driven insights about flights from Washington to Kathmandu including ideal travel times, pricing trends, and more.

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 $1,997). 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 February 20, 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.

Rainfall in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

Temperature in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kathmandu, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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 February 20, 2025.
To help decide which airline to fly from Washington to Kathmandu, see what other customers have to say about Emirates, Singapore Airlines and Cathay Pacific. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,279 reviews

Crew

8.3

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

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
3,279 reviews
Emirates
8.1
Very good
3,279 reviews

Crew

8.3

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

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
1,299 reviews
Emirates
8.1
Very good
3,279 reviews

Crew

8.3

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

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
7.5
Good
821 reviews
Emirates
8.1
Very good
3,279 reviews

Crew

8.3

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

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
3,279 reviews

Crew

8.3

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

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
3,832 reviews
Emirates
8.1
Very good
3,279 reviews

Crew

8.3

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

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 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 Pullman Moscow Regional - 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 $1,997). 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.

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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$804Average$1,494FlexibilityNo cancel feeOn-time68%
Singapore AirlinesCheapest$889Average$1,335FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,120Average$1,426FlexibilityNo cancel feeOn-time77%
Cathay PacificCheapest$1,172Average$1,513FlexibilityNo cancel feeOn-time72%
EmiratesCheapest$1,688Average$2,160FlexibilityNo cancel feeOn-time75%
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