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Kathmandu

$310+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KTM
abr. 27 — may. 41
dom. 4/27
dom. 5/4
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 abril 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,130
(oojo)

One-way from

$510
(Indian Eagle)

Popular in

June

Cheapest in

January

Average price

$1,214
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. 19% potential increase in price ($344 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 22, 2025.

This oojo deal was found by Cheapflights users on 4/21. 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.
mar. 9/1610:30 amPDX - KTM
2 stops46h 30mCathay Pacific
mar. 9/3011:00 pmKTM - PDX
2 stops30h 35mCathay Pacific
Deal found 4/21$1,130
This Indian Eagle deal was found by Cheapflights users on 4/21. 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.
lun. 9/2210:35 amPDX - KTM
2 stops42h 30mQatar Airways
mar. 10/286:45 pmKTM - PDX
2 stops41h 53mQatar Airways
Deal found 4/21$1,147
This Gurufare deal was found by Cheapflights users on 4/21. 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.
dom. 9/710:15 amSEA - KTM
1 stop22h 45mSingapore Airlines
lun. 10/611:10 pmKTM - SEA
1 stop22h 20mSingapore Airlines
Deal found 4/21$1,152
This oojo deal was found by Cheapflights users on 4/22. 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.
mar. 5/136:59 pmSEA - KTM
2 stops38h 01mCathay Pacific
lun. 6/211:00 pmKTM - SEA
2 stops35h 21mCathay Pacific
Deal found 4/22$1,156
This oojo deal was found by Cheapflights users on 4/21. 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.
sáb. 4/264:30 pmSEA - KTM
1 stop35h 30mQatar Airways
dom. 5/256:00 pmKTM - SEA
1 stop31h 30mQatar Airways
Deal found 4/21$1,169
This Turkish Airlines deal was found by Cheapflights users on 4/21. 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.
mar. 9/27:10 pmSEA - KTM
1 stop22h 20mTurkish Airlines
jue. 9/187:40 amKTM - SEA
1 stop22h 20mTurkish Airlines
Deal found 4/21$1,170
This Trip.com deal was found by Cheapflights users on 4/22. 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.
mar. 5/64:30 pmSEA - KTM
1 stop35h 30mMultiple Airlines
jue. 5/2211:30 pmKTM - SEA
2 stops32h 30mMultiple Airlines
Deal found 4/22$1,200
This FlightHub deal was found by Cheapflights users on 4/22. 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.
dom. 9/146:30 amGEG - KTM
2 stops45h 30mQatar Airways
mar. 10/1410:05 amKTM - GEG
2 stops50h 39mQatar Airways
Deal found 4/22$1,234
This Singapore Airlines deal was found by Cheapflights users on 4/21. 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.
vie. 8/15:15 amPDX - KTM
2 stops27h 45mMultiple Airlines
dom. 8/3111:00 pmKTM - PDX
2 stops47h 32mMultiple Airlines
Deal found 4/21$1,328
This KAYAK deal was found by Cheapflights users on 4/21. 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.
mar. 7/297:00 amPDX - KTM
2 stops50h 00mSingapore Airlines
mar. 9/211:00 pmKTM - PDX
2 stops27h 35mSingapore Airlines
Deal found 4/21$1,442
This Singapore Airlines deal was found by Cheapflights users on 4/22. 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.
dom. 9/146:30 amGEG - KTM
2 stops50h 30mMultiple Airlines
mar. 10/1411:00 pmKTM - GEG
3 stops51h 33mMultiple Airlines
Deal found 4/22$1,583
This Gurufare deal was found by Cheapflights users on 4/22. 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.
lun. 5/125:40 pmPUW - KTM
2 stops39h 20mMultiple Airlines
vie. 8/111:00 pmKTM - PUW
2 stops26h 48mMultiple Airlines
Deal found 4/22$2,206

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 abril 22, 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

mar. 9/16

10:30 am-9:45 pm

2 stops46h 30m

Kathmandu Tribhuvan

mar. 9/30

11:00 pm-4:50 pm

2 stops30h 35m

$1,130

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

lun. 9/22

10:35 am-5:50 pm

2 stops42h 30m

Kathmandu Tribhuvan

mar. 10/28

6:45 pm-11:53 pm

2 stops41h 53m

$1,147

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

dom. 9/7

10:15 am-9:45 pm

1 stop22h 45m

Kathmandu Tribhuvan

mié. 10/8

11:10 pm-8:45 am

1 stop22h 20m

$1,152

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

mar. 5/13

6:59 pm-9:45 pm

2 stops38h 01m

Kathmandu Tribhuvan

lun. 6/2

11:00 pm-9:36 pm

2 stops35h 21m

$1,156

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

mar. 9/2

7:10 pm-6:15 am

1 stop22h 20m

Kathmandu Tribhuvan

jue. 9/18

7:40 am-5:15 pm

1 stop22h 20m

$1,170

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

mar. 5/6

4:30 pm-4:45 pm

1 stop35h 30m

Kathmandu Tribhuvan

jue. 5/22

11:30 pm-7:15 pm

2 stops32h 30m

$1,200

SpokaneKathmandu

GEG - KTM

GEGKTM

Spokane

dom. 9/14

6:30 am-4:45 pm

2 stops45h 30m

Kathmandu Tribhuvan

mar. 10/14

10:05 am-11:59 pm

2 stops50h 39m

$1,234

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

lun. 9/1

4:30 pm-8:50 am

1 stop27h 35m

Kathmandu Tribhuvan

lun. 9/15

6:00 pm-12:45 pm

1 stop31h 30m

$1,240

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

vie. 8/1

5:15 am-9:45 pm

2 stops27h 45m

Kathmandu Tribhuvan

dom. 8/31

11:00 pm-9:47 am

2 stops47h 32m

$1,328

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

mar. 7/29

7:00 am-9:45 pm

2 stops50h 00m

Kathmandu Tribhuvan

lun. 9/1

11:00 pm-1:50 pm

2 stops27h 35m

$1,442

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 21 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, 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 $1,960). 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 abril 22, 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 abril 22, 2025.
To help decide which airline to fly from Washington to Kathmandu, see what other customers have to say about Singapore Airlines, Cathay Pacific and China Southern. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,290 reviews

Entertainment

8.0

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very good
1,290 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Entertainment

8.0

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Cathay Pacific
7.5
Good
850 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Entertainment

8.0

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
China Southern
7.5
Good
94 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Entertainment

8.0

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
SWISS
7.5
Good
1,582 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Entertainment

8.0

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Qatar Airways
7.4
Good
3,560 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Entertainment

8.0

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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 $510. Users have also found prices from $757 and $871 on Turkish 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 $1,960). 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

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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 abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$889Average$1,399FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,116Average$1,376FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,135Average$1,624FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,172Average$1,437FlexibilityNo cancel feeOn-time72%
EmiratesCheapest$1,688Average$2,160FlexibilityNo cancel feeOn-time75%

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