What is the cheapest airline that flies from Kathmandu Tribhuvan to Washington?

Singapore Airlines is the most popular carrier operating from Kathmandu Tribhuvan to Washington

When did momondo last update prices for flights from Kathmandu Tribhuvan Airport to Washington?

Prices for flights from Kathmandu Tribhuvan Airport to Washington refresh daily.

How many operators does momondo search for flights from Kathmandu Tribhuvan Airport to Washington?

As of September 2026, there is 1 operator available to choose from for flights from Kathmandu Tribhuvan Airport to Washington.

How old do you have to be to fly from Kathmandu Tribhuvan Airport to Washington?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kathmandu Tribhuvan Airport to Washington.

What documentation or ID do you need to fly to Washington?

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$549 Cheap Flights from Kathmandu to Washington in 2026

Find the cheapest flights from Kathmandu to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:25 pm - 9:05 amKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

27h 25m1 stop Incheon Intl

11:00 am - 5:00 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

40h 15m1 stop Incheon Intl

$1,213Korean Air

Fri, Dec 18 - Sun, Mar 7

7:25 pm - 9:05 amKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

27h 25m1 stop Incheon Intl

11:00 am - 5:00 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

40h 15m1 stop Incheon Intl

$1,213Korean Air

Tue, Dec 22 - Wed, Mar 10

7:25 pm - 9:05 amKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

27h 25m1 stop Incheon Intl

11:00 am - 5:00 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

40h 15m1 stop Incheon Intl

$1,213Korean Air

Tue, Dec 22 - Sun, Mar 7

7:25 pm - 9:05 amKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

27h 25m1 stop Incheon Intl

11:00 am - 5:00 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

40h 15m1 stop Incheon Intl

$1,213Korean Air

Fri, Dec 18 - Wed, Mar 10

12:25 am - 1:55 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

27h 15m2 stops Bangkok Suvarnabhumi Incheon Intl

12:10 am - 11:25 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

33h 30m2 stops Incheon Intl Bangkok Suvarnabhumi

$1,267Multiple Airlines

Fri, Dec 18 - Sun, Mar 7

11:10 pm - 8:45 amKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

46h 20m1 stop Singapore Changi

9:40 am - 9:50 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

23h 25m1 stop Singapore Changi

$1,320Singapore Airlines

Wed, Sep 30 - Fri, Mar 19

6:30 am - 9:44 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

28h 59m2 stops New Delhi Indira Gandhi Intl San Francisco

7:55 pm - 6:35 amSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

44h 55m3 stops San Francisco Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl

$1,335Multiple Airlines

Sat, Dec 19 - Mon, Mar 8

2:40 pm - 3:58 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

38h 03m2 stops New Delhi Indira Gandhi Intl San Francisco

5:59 pm - 6:35 amSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

47h 51m3 stops San Francisco Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl

$1,365Multiple Airlines

Wed, Sep 30 - Fri, Mar 19

7:25 pm - 9:05 amKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

27h 25m1 stop Incheon Intl

11:00 am - 5:00 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

40h 15m1 stop Incheon Intl

$1,367Korean Air

Tue, Jan 12 - Sun, Jan 24

10:55 pm - 7:05 amKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

45h 55m1 stop Singapore Changi

8:40 am - 9:50 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

23h 25m1 stop Singapore Changi

$1,385Singapore Airlines

Sun, Jan 10 - Sun, Jan 24

Cheap last minute flights

Enter your travel dates to find the best prices.

7:20 pm - 1:37 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

31h 02m1 stop Incheon Intl

12:50 pm - 5:15 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

39h 40m1 stop Incheon Intl

$1,309Korean Air

Sat, Sep 12 - Thu, Sep 24

7:20 pm - 1:37 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

31h 02m1 stop Incheon Intl

12:50 pm - 5:15 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

39h 40m1 stop Incheon Intl

$1,309Korean Air

Sat, Sep 12 - Sun, Sep 20

3:30 pm - 1:05 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

34h 20m1 stop Doha Hamad Intl

3:50 pm - 9:50 amSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

28h 15m1 stop Doha Hamad Intl

$1,365Qatar Airways

Sun, Sep 13 - Thu, Nov 12

6:30 am - 11:10 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

29h 25m3 stops New Delhi Indira Gandhi Intl Kolkata Netaji S. Chandra San Francisco

10:01 pm - 4:30 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

29h 44m2 stops Newark New Delhi Indira Gandhi Intl

$1,405Multiple Airlines

Thu, Sep 10 - Mon, Sep 21

3:30 pm - 1:05 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

34h 20m1 stop Doha Hamad Intl

8:54 am - 5:30 pmSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

42h 51m2 stops San Francisco Doha Hamad Intl

$1,413Qatar Airways

Sun, Sep 13 - Thu, Nov 12

6:00 pm - 1:05 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

31h 50m1 stop Doha Hamad Intl

4:25 pm - 8:50 amSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

27h 40m1 stop Doha Hamad Intl

$1,419Qatar Airways

Sun, Sep 13 - Sun, Sep 20

6:00 pm - 1:05 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

31h 50m1 stop Doha Hamad Intl

4:25 pm - 8:50 amSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

27h 40m1 stop Doha Hamad Intl

$1,419Qatar Airways

Sun, Sep 13 - Sat, Sep 19

6:00 pm - 1:05 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

31h 50m1 stop Doha Hamad Intl

4:25 pm - 8:50 amSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

27h 40m1 stop Doha Hamad Intl

$1,419Qatar Airways

Sun, Sep 13 - Fri, Sep 18

6:00 pm - 1:05 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

31h 50m1 stop Doha Hamad Intl

4:25 pm - 8:50 amSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

27h 40m1 stop Doha Hamad Intl

$1,419Qatar Airways

Sun, Sep 13 - Tue, Sep 22

6:00 pm - 1:05 pmKTM Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl

31h 50m1 stop Doha Hamad Intl

4:25 pm - 8:50 amSEA Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan

27h 40m1 stop Doha Hamad Intl

$1,419Qatar Airways

Sun, Sep 13 - Thu, Sep 24

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Korean Air flights from Kathmandu to State of Washington

Our best Korean Air deals on Kathmandu to State of Washington flight tickets

Korean Air

Dec 18

KTM7:25 pmKathmandu Tribhuvan

27h 25m

1 stop

SEA9:05 amSeattle/Tacoma Intl

Mar 10

SEA11:00 amSeattle/Tacoma Intl

40h 15m

1 stop

KTM5:00 pmKathmandu Tribhuvan

$1,213

Korean Air

Sep 12

KTM7:20 pmKathmandu Tribhuvan

31h 02m

1 stop

SEA1:37 pmSeattle/Tacoma Intl

Sep 24

SEA12:50 pmSeattle/Tacoma Intl

39h 40m

1 stop

KTM5:15 pmKathmandu Tribhuvan

$1,309

Korean Air

Jan 12

KTM7:25 pmKathmandu Tribhuvan

27h 25m

1 stop

SEA9:05 amSeattle/Tacoma Intl

Jan 24

SEA11:00 amSeattle/Tacoma Intl

40h 15m

1 stop

KTM5:00 pmKathmandu Tribhuvan

$1,367

Singapore Airlines flights from Kathmandu to State of Washington

Our best Singapore Airlines deals on Kathmandu to State of Washington flight tickets

Singapore Airlines

Sep 30

KTM11:10 pmKathmandu Tribhuvan

46h 20m

1 stop

SEA8:45 amSeattle/Tacoma Intl

Mar 19

SEA9:40 amSeattle/Tacoma Intl

23h 25m

1 stop

KTM9:50 pmKathmandu Tribhuvan

$1,320

Singapore Airlines

Jan 10

KTM10:55 pmKathmandu Tribhuvan

45h 55m

1 stop

SEA7:05 amSeattle/Tacoma Intl

Jan 24

SEA8:40 amSeattle/Tacoma Intl

23h 25m

1 stop

KTM9:50 pmKathmandu Tribhuvan

$1,385

momondo Fare Finder

Use the filters below to find and compare flights from Kathmandu to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Fri 12/18

7:25 pm-9:05 am

1 stop27h 25m

Seattle/Tacoma Intl

Sun 3/7

11:00 am-5:00 pm

1 stop40h 15m

$1,213

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 12/22

7:25 pm-9:05 am

1 stop27h 25m

Seattle/Tacoma Intl

Wed 3/10

11:00 am-5:00 pm

1 stop40h 15m

$1,213

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 12/22

7:25 pm-9:05 am

1 stop27h 25m

Seattle/Tacoma Intl

Sun 3/7

11:00 am-5:00 pm

1 stop40h 15m

$1,213

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Fri 12/18

7:25 pm-9:05 am

1 stop27h 25m

Seattle/Tacoma Intl

Wed 3/10

11:00 am-5:00 pm

1 stop40h 15m

$1,213

Quickest round-trip

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Fri 12/18

12:25 am-1:55 pm

2 stops27h 15m

Seattle/Tacoma Intl

Sun 3/7

12:10 am-11:25 pm

2 stops33h 30m

$1,267

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Wed 9/30

11:10 pm-8:45 am

1 stop46h 20m

Seattle/Tacoma Intl

Fri 3/19

9:40 am-9:50 pm

1 stop23h 25m

$1,320

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Sat 12/19

6:30 am-9:44 pm

2 stops28h 59m

Seattle/Tacoma Intl

Mon 3/8

7:55 pm-6:35 am

3 stops44h 55m

$1,335

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Wed 9/30

2:40 pm-3:58 pm

2 stops38h 03m

Seattle/Tacoma Intl

Fri 3/19

5:59 pm-6:35 am

3 stops47h 51m

$1,365

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 1/12

7:25 pm-9:05 am

1 stop27h 25m

Seattle/Tacoma Intl

Sun 1/24

11:00 am-5:00 pm

1 stop40h 15m

$1,367

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Sun 1/10

10:55 pm-7:05 am

1 stop45h 55m

Seattle/Tacoma Intl

Sun 1/24

8:40 am-9:50 pm

1 stop23h 25m

$1,385

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Kathmandu to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from Kathmandu, with most prices found around $0. If you aren’t able to travel to State of Washington during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,196.

Can stopping save me money on Kathmandu to State of Washington flights?

You could potentially save up to 25% on your flight if you consider stops on a Kathmandu to State of Washington flight.

Cheap Kathmandu to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kathmandu to State of Washington

Best Price Found	$549
Fastest flight time	25h 50m
Direct flights	None

The best one-way flight to State of Washington from Kathmandu in the past 72 hours is $549. The best round-trip flight deal from Kathmandu to State of Washington found on momondo in the last 72 hours is $1,213.

The fastest flight from Kathmandu to State of Washington takes 25h 50m

There are no direct flights from Kathmandu to State of Washington. There are no popular flight routes from Kathmandu to State of Washington.

Search flight deals

Frequently asked questions about flying from Kathmandu to Washington

When did momondo last update prices for flights from Kathmandu Tribhuvan Airport to Washington?
Prices for flights from Kathmandu Tribhuvan Airport to Washington refresh daily.
How many operators does momondo search for flights from Kathmandu Tribhuvan Airport to Washington?
As of September 2026, there is 1 operator available to choose from for flights from Kathmandu Tribhuvan Airport to Washington.
How old do you have to be to fly from Kathmandu Tribhuvan Airport to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kathmandu Tribhuvan Airport to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Kathmandu to State of Washington

Compare and see reviews for airlines that fly from Kathmandu to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $1,006	Free Cancellation	Rating 8.2 1,598 reviews		Search Singapore Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Kathmandu to Washington?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Kathmandu to Washington. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Kathmandu to Washington with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Kathmandu to Washington flights to just show those with flexible booking policies.

How can momondo help me find flights from Kathmandu to Washington?

momondo helps you find the best flight between Kathmandu and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Kathmandu to Washington right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington from Kathmandu. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.