When did momondo last update prices for flights from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport?

There is 1 operator available for flights from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport as of June 2026.

How old do you have to be to fly from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$767 Cheap Flights from Kathmandu to Seattle in 2026

Find the cheapest flights from Kathmandu to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:50 pm - 8:45 am

KTM

SEA

22h 40m

1 stop

8:45 am - 9:40 pm

SEA

KTM

23h 10m

1 stop

$1,193Singapore Airlines

Sat, Sep 19 - Sun, Nov 22

10:50 pm - 8:45 am

KTM

SEA

22h 40m

1 stop

2:30 pm - 9:50 pm

SEA

KTM

41h 35m

2 stops

$1,293Multiple Airlines

Sat, Sep 19 - Sun, Nov 22

11:00 pm - 7:40 pm

KTM

SEA

33h 25m

2 stops

12:10 am - 9:30 pm

SEA

KTM

31h 35m

2 stops

$1,416Multiple Airlines

Sat, Sep 19 - Sat, Nov 21

1:25 pm - 1:25 pm

KTM

SEA

60h 45m

2 stops

5:15 pm - 12:50 pm

SEA

KTM

54h 50m

2 stops

$1,451Multiple Airlines

Wed, Jul 22 - Wed, Aug 12

8:10 am - 1:25 pm

KTM

SEA

42h 00m

2 stops

5:15 pm - 12:50 pm

SEA

KTM

30h 50m

2 stops

$1,465Multiple Airlines

Tue, Jul 14 - Tue, Jul 21

11:00 pm - 7:40 pm

KTM

SEA

33h 25m

2 stops

12:30 am - 9:45 pm

SEA

KTM

32h 30m

2 stops

$1,496Multiple Airlines

Sat, Sep 5 - Tue, Sep 29

1:25 pm - 1:25 pm

KTM

SEA

36h 45m

2 stops

5:15 pm - 9:45 am

SEA

KTM

27h 45m

1 stop

$1,499Multiple Airlines

Tue, Jul 14 - Tue, Jul 21

1:25 pm - 1:25 pm

KTM

SEA

36h 45m

2 stops

4:25 pm - 8:50 am

SEA

KTM

27h 40m

1 stop

$1,504Multiple Airlines

Wed, Jul 22 - Wed, Aug 12

11:00 pm - 10:20 am

KTM

SEA

24h 05m

1 stop

4:25 pm - 9:50 am

SEA

KTM

28h 40m

1 stop

$1,538Multiple Airlines

Wed, Jul 22 - Wed, Aug 12

11:00 pm - 10:20 am

KTM

SEA

24h 05m

1 stop

4:25 pm - 8:50 am

SEA

KTM

27h 40m

1 stop

$1,549Multiple Airlines

Tue, Jul 14 - Tue, Jul 21

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Singapore Airlines flights from Kathmandu to Seattle

Our best Singapore Airlines deals on Kathmandu to Seattle flight tickets

Singapore Airlines

Sep 19

KTM10:50 pmKathmandu Tribhuvan

22h 40m

1 stop

SEA8:45 amSeattle/Tacoma Intl

Nov 22

SEA8:45 amSeattle/Tacoma Intl

23h 10m

1 stop

KTM9:40 pmKathmandu Tribhuvan

$1,193

Singapore Airlines

Aug 14

KTM10:50 pmKathmandu Tribhuvan

46h 40m

1 stop

SEA8:45 amSeattle/Tacoma Intl

Jan 30

SEA8:45 amSeattle/Tacoma Intl

23h 20m

1 stop

KTM9:50 pmKathmandu Tribhuvan

$1,554

Air India flights from Kathmandu to Seattle

Our best Air India deals on Kathmandu to Seattle flight tickets

Air India

Jun 27

KTM6:30 amKathmandu Tribhuvan

41h 30m

3 stops

SEA11:15 amSeattle/Tacoma Intl

Jul 25

SEA11:15 pmSeattle/Tacoma Intl

36h 05m

2 stops

KTM12:05 amKathmandu Tribhuvan

$1,735

Air India

Aug 14

KTM1:25 pmKathmandu Tribhuvan

34h 35m

3 stops

SEA11:15 amSeattle/Tacoma Intl

Jan 30

SEA10:41 pmSeattle/Tacoma Intl

31h 39m

2 stops

KTM8:05 pmKathmandu Tribhuvan

$1,963

Air India

Jul 22

KTM7:35 amKathmandu Tribhuvan

45h 29m

3 stops

SEA4:19 pmSeattle/Tacoma Intl

Aug 12

SEA7:11 amSeattle/Tacoma Intl

28h 09m

3 stops

KTM12:05 amKathmandu Tribhuvan

$1,993

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 9/19

10:50 pm-8:45 am

1 stop22h 40m

Seattle/Tacoma Intl

Sun 11/22

8:45 am-9:40 pm

1 stop23h 10m

$1,193

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 9/19

10:50 pm-8:45 am

1 stop22h 40m

Seattle/Tacoma Intl

Sun 11/22

2:30 pm-9:50 pm

2 stops41h 35m

$1,293

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 9/19

11:00 pm-7:40 pm

2 stops33h 25m

Seattle/Tacoma Intl

Sat 11/21

12:10 am-9:30 pm

2 stops31h 35m

$1,416

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 7/22

1:25 pm-1:25 pm

2 stops60h 45m

Seattle/Tacoma Intl

Wed 8/12

5:15 pm-12:50 pm

2 stops54h 50m

$1,451

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 7/14

8:10 am-1:25 pm

2 stops42h 00m

Seattle/Tacoma Intl

Tue 7/21

5:15 pm-12:50 pm

2 stops30h 50m

$1,465

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 9/5

11:00 pm-7:40 pm

2 stops33h 25m

Seattle/Tacoma Intl

Tue 9/29

12:30 am-9:45 pm

2 stops32h 30m

$1,496

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 7/14

1:25 pm-1:25 pm

2 stops36h 45m

Seattle/Tacoma Intl

Tue 7/21

5:15 pm-9:45 am

1 stop27h 45m

$1,499

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 7/22

1:25 pm-1:25 pm

2 stops36h 45m

Seattle/Tacoma Intl

Wed 8/12

4:25 pm-8:50 am

1 stop27h 40m

$1,504

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 7/22

11:00 pm-10:20 am

1 stop24h 05m

Seattle/Tacoma Intl

Wed 8/12

4:25 pm-9:50 am

1 stop28h 40m

$1,538

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 7/14

11:00 pm-10:20 am

1 stop24h 05m

Seattle/Tacoma Intl

Tue 7/21

4:25 pm-8:50 am

1 stop27h 40m

$1,549

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 Seattle

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

Can stopping save me money on Kathmandu to Seattle flights?

You could potentially save up to 13% on your flight if you consider stops on a Kathmandu to Seattle flight.

How have Kathmandu to Seattle flight prices changed over time?

As of June 2026, prices for Kathmandu to Seattle flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Kathmandu to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Kathmandu to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Kathmandu to Seattle (KTM to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kathmandu to Seattle

Fastest flight time	22h 40m
Direct flights	None

The fastest flight from Kathmandu to Seattle takes 22h 40m

There are no direct flights from Kathmandu to Seattle. There are no popular flight routes from Kathmandu to Seattle.

Search flight deals

Frequently asked questions about flying from Kathmandu to Seattle

How far is Kathmandu Tribhuvan to Seattle/Tacoma Intl by plane?
The distance between Kathmandu Tribhuvan and Seattle/Tacoma Intl is about 6950.3 mi. Flights usually cover this in 22h 40m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport?
There is 1 operator available for flights from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport as of June 2026.
How old do you have to be to fly from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kathmandu Tribhuvan Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Kathmandu to Seattle?
Based on momondo bookings for flights between Kathmandu and Seattle, the leading airline is Singapore Airlines, making up 100% of the total bookings.

Best airlines flying from Kathmandu to Seattle

Compare and see reviews for airlines that fly from Kathmandu to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $1,106	Free Cancellation	Rating 8.2 1,545 reviews		Search Singapore Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Lakewood

Puyallup

Tukwila

Federal Way

Fife

Cle Elum

Marysville

Centralia

Shoreline

Kirkland

Westport

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Kathmandu to Seattle. momondo saves you time and could save you money on your trip.

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

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

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

momondo helps you find the best flight between Kathmandu and Seattle 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 Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Kathmandu to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.