What is the cheapest airline that flies from Kathmandu Tribhuvan to Seattle/Tacoma Intl?

Qatar Airways is the most popular carrier operating from Kathmandu Tribhuvan to Seattle/Tacoma Intl

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 May 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.

$706 Cheap Flights from Kathmandu to Seattle in 2026

Q: What is the typical price of a round-trip flight between Kathmandu and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from $1,433 to $983. The lowest price recently found on this route was $1,237.

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Find the cheapest flights from Kathmandu to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:45 am - 6:35 pm

KTM

SEA

43h 35m

2 stops

10:15 am - 9:30 pm

SEA

KTM

22h 30m

1 stop

$1,237Multiple Airlines

Tue, Jun 2 - Tue, Sep 1

7:10 pm - 2:45 pm

KTM

SEA

32h 20m

1 stop

5:05 pm - 8:40 am

SEA

KTM

26h 50m

1 stop

$1,305Multiple Airlines

Fri, Jun 5 - Fri, Jun 12

10:05 am - 12:25 pm

KTM

SEA

39h 05m

1 stop

4:25 pm - 8:50 am

SEA

KTM

27h 40m

1 stop

$1,308Multiple Airlines

Fri, Jun 19 - Fri, Jun 26

3:30 pm - 2:45 pm

KTM

SEA

36h 00m

1 stop

4:25 pm - 9:50 am

SEA

KTM

28h 40m

1 stop

$1,310Multiple Airlines

Tue, Jun 2 - Tue, Sep 1

10:05 am - 8:59 pm

KTM

SEA

47h 39m

3 stops

5:05 pm - 8:50 am

SEA

KTM

27h 00m

1 stop

$1,322Multiple Airlines

Mon, Jun 8 - Mon, Jun 15

8:10 am - 1:25 pm

KTM

SEA

42h 00m

2 stops

5:15 pm - 6:10 pm

SEA

KTM

36h 10m

2 stops

$1,376Multiple Airlines

Tue, Jun 2 - Tue, Sep 1

7:10 pm - 2:45 pm

KTM

SEA

32h 20m

1 stop

4:25 pm - 8:50 am

SEA

KTM

27h 40m

1 stop

$1,385Qatar Airways

Sun, May 31 - Wed, Jun 17

7:10 pm - 2:45 pm

KTM

SEA

32h 20m

1 stop

4:25 pm - 8:50 am

SEA

KTM

27h 40m

1 stop

$1,414Qatar Airways

Sun, May 31 - Tue, Jun 16

3:30 pm - 2:45 pm

KTM

SEA

36h 00m

1 stop

12:38 pm - 2:15 pm

SEA

KTM

36h 52m

2 stops

$1,419Multiple Airlines

Fri, Jun 5 - Fri, Jun 12

7:10 pm - 2:45 pm

KTM

SEA

32h 20m

1 stop

10:03 am - 8:50 am

SEA

KTM

34h 02m

2 stops

$1,423Qatar Airways

Tue, Jun 2 - Wed, Jun 17

Emirates flights from Kathmandu to Seattle

Our best Emirates deals on Kathmandu to Seattle flight tickets

Emirates

May 31

KTM12:35 amKathmandu Tribhuvan

25h 35m

1 stop

SEA1:25 pmSeattle/Tacoma Intl

Jun 17

SEA5:15 pmSeattle/Tacoma Intl

26h 05m

1 stop

KTM8:05 amKathmandu Tribhuvan

$1,596

Emirates

Jun 8

KTM7:55 pmKathmandu Tribhuvan

30h 15m

1 stop

SEA1:25 pmSeattle/Tacoma Intl

Jun 15

SEA5:15 pmSeattle/Tacoma Intl

36h 55m

1 stop

KTM6:55 pmKathmandu Tribhuvan

$1,615

Emirates

May 29

KTM9:05 amKathmandu Tribhuvan

41h 05m

1 stop

SEA1:25 pmSeattle/Tacoma Intl

Jun 16

SEA5:15 pmSeattle/Tacoma Intl

26h 05m

1 stop

KTM8:05 amKathmandu Tribhuvan

$1,641

Qatar Airways flights from Kathmandu to Seattle

Our best Qatar Airways deals on Kathmandu to Seattle flight tickets

Qatar Airways

May 31

KTM7:10 pmKathmandu Tribhuvan

32h 20m

1 stop

SEA2:45 pmSeattle/Tacoma Intl

Jun 19

SEA4:25 pmSeattle/Tacoma Intl

27h 40m

1 stop

KTM8:50 amKathmandu Tribhuvan

$1,385

Qatar Airways

May 31

KTM7:10 pmKathmandu Tribhuvan

32h 20m

1 stop

SEA2:45 pmSeattle/Tacoma Intl

Jun 16

SEA4:25 pmSeattle/Tacoma Intl

27h 40m

1 stop

KTM8:50 amKathmandu Tribhuvan

$1,414

Qatar Airways

Jun 2

KTM7:10 pmKathmandu Tribhuvan

32h 20m

1 stop

SEA2:45 pmSeattle/Tacoma Intl

Jun 15

SEA12:38 pmSeattle/Tacoma Intl

39h 22m

2 stops

KTM4:45 pmKathmandu Tribhuvan

$1,423

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 6/2

11:45 am-6:35 pm

2 stops43h 35m

Seattle/Tacoma Intl

Tue 9/1

10:15 am-9:30 pm

1 stop22h 30m

$1,237

Quickest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 6/5

7:10 pm-2:45 pm

1 stop32h 20m

Seattle/Tacoma Intl

Fri 6/12

5:05 pm-8:40 am

1 stop26h 50m

$1,305

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 6/19

10:05 am-12:25 pm

1 stop39h 05m

Seattle/Tacoma Intl

Fri 6/26

4:25 pm-8:50 am

1 stop27h 40m

$1,308

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 6/2

3:30 pm-2:45 pm

1 stop36h 00m

Seattle/Tacoma Intl

Tue 9/1

4:25 pm-9:50 am

1 stop28h 40m

$1,310

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 6/8

10:05 am-8:59 pm

3 stops47h 39m

Seattle/Tacoma Intl

Mon 6/15

5:05 pm-8:50 am

1 stop27h 00m

$1,322

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 6/2

8:10 am-1:25 pm

2 stops42h 00m

Seattle/Tacoma Intl

Tue 9/1

5:15 pm-6:10 pm

2 stops36h 10m

$1,376

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 5/31

7:10 pm-2:45 pm

1 stop32h 20m

Seattle/Tacoma Intl

Wed 6/17

4:25 pm-8:50 am

1 stop27h 40m

$1,385

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 5/31

7:10 pm-2:45 pm

1 stop32h 20m

Seattle/Tacoma Intl

Tue 6/16

4:25 pm-8:50 am

1 stop27h 40m

$1,414

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 6/5

3:30 pm-2:45 pm

1 stop36h 00m

Seattle/Tacoma Intl

Fri 6/12

12:38 pm-2:15 pm

2 stops36h 52m

$1,419

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 6/2

7:10 pm-2:45 pm

1 stop32h 20m

Seattle/Tacoma Intl

Wed 6/17

10:03 am-8:50 am

2 stops34h 02m

$1,423

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

Prices

Airlines

What is the typical price of a round-trip flight between Kathmandu and Seattle?

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Kathmandu to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you don’t want to visit Seattle in October, then you should wait until January to fly from Kathmandu, when ticket prices are also cheap, with an average price of $0.

Can stopping save me money on Kathmandu to Seattle flights?

You could potentially save up to 3% 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 May 2026, prices for Kathmandu to Seattle flights are approximately 7% cheaper 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	36h 45m
Direct flights	None

The fastest flight from Kathmandu to Seattle takes 36h 45m

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 36h 45m, 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 May 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 1,511 reviews		Search Singapore Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Tukwila

Puyallup

Marysville

Lakewood

Cle Elum

Federal Way

Centralia

Fife

Westport

Shoreline

Tumwater

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.