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

Air India, Turkish Airlines, and Korean Air are the most popular carriers 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 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.

$732 Cheap Flights from Kathmandu to Seattle in 2026

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.

7:20 pm - 10:40 am

KTM

SEA

28h 05m

1 stop

12:50 pm - 5:15 pm

SEA

KTM

39h 40m

1 stop

$1,211Korean Air

Tue, Sep 15 - Thu, Oct 1

7:20 pm - 10:40 am

KTM

SEA

28h 05m

1 stop

12:50 pm - 5:15 pm

SEA

KTM

39h 40m

1 stop

$1,287Korean Air

Sat, Sep 19 - Thu, Oct 1

3:30 pm - 12:45 pm

KTM

SEA

34h 00m

1 stop

4:25 pm - 5:20 pm

SEA

KTM

36h 10m

1 stop

$1,397Qatar Airways

Wed, Jul 8 - Fri, Oct 16

6:00 pm - 12:45 pm

KTM

SEA

31h 30m

1 stop

4:25 pm - 4:45 pm

SEA

KTM

35h 35m

1 stop

$1,399Qatar Airways

Thu, Jul 9 - Thu, Oct 15

10:05 am - 12:45 pm

KTM

SEA

39h 25m

1 stop

4:25 pm - 5:20 pm

SEA

KTM

36h 10m

1 stop

$1,402Qatar Airways

Wed, Jul 8 - Thu, Oct 15

6:00 pm - 12:45 pm

KTM

SEA

31h 30m

1 stop

4:25 pm - 5:20 pm

SEA

KTM

36h 10m

1 stop

$1,412Qatar Airways

Thu, Jul 9 - Sat, Oct 17

10:05 am - 12:45 pm

KTM

SEA

39h 25m

1 stop

4:25 pm - 5:20 pm

SEA

KTM

36h 10m

1 stop

$1,414Qatar Airways

Wed, Jul 8 - Sat, Oct 17

3:30 pm - 12:45 pm

KTM

SEA

34h 00m

1 stop

4:25 pm - 5:20 pm

SEA

KTM

36h 10m

1 stop

$1,420Qatar Airways

Wed, Jul 8 - Sun, Oct 18

6:00 pm - 12:45 pm

KTM

SEA

31h 30m

1 stop

7:12 am - 4:45 pm

SEA

KTM

44h 48m

2 stops

$1,428Multiple Airlines

Thu, Jul 9 - Thu, Oct 15

3:30 pm - 12:45 pm

KTM

SEA

34h 00m

1 stop

9:59 am - 4:45 pm

SEA

KTM

42h 01m

2 stops

$1,440Qatar Airways

Wed, Jul 8 - Sat, Oct 17

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Qatar Airways flights from Kathmandu to Seattle

Our best Qatar Airways deals on Kathmandu to Seattle flight tickets

Qatar Airways

Jul 5

KTM6:00 pmKathmandu Tribhuvan

31h 30m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

Aug 20

SEA4:25 pmSeattle/Tacoma Intl

28h 40m

1 stop

KTM9:50 amKathmandu Tribhuvan

$1,379

Qatar Airways

Jul 7

KTM3:30 pmKathmandu Tribhuvan

34h 00m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

Aug 20

SEA4:25 pmSeattle/Tacoma Intl

28h 40m

1 stop

KTM9:50 amKathmandu Tribhuvan

$1,380

Qatar Airways

Jul 8

KTM3:30 pmKathmandu Tribhuvan

34h 00m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

Oct 16

SEA4:25 pmSeattle/Tacoma Intl

36h 10m

1 stop

KTM5:20 pmKathmandu Tribhuvan

$1,397

Korean Air flights from Kathmandu to Seattle

Our best Korean Air deals on Kathmandu to Seattle flight tickets

Korean Air

Sep 15

KTM7:20 pmKathmandu Tribhuvan

28h 05m

1 stop

SEA10:40 amSeattle/Tacoma Intl

Oct 1

SEA12:50 pmSeattle/Tacoma Intl

39h 40m

1 stop

KTM5:15 pmKathmandu Tribhuvan

$1,211

Korean Air

Sep 19

KTM7:20 pmKathmandu Tribhuvan

28h 05m

1 stop

SEA10:40 amSeattle/Tacoma Intl

Oct 1

SEA12:50 pmSeattle/Tacoma Intl

39h 40m

1 stop

KTM5:15 pmKathmandu Tribhuvan

$1,287

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 9/15

7:20 pm-10:40 am

1 stop28h 05m

Seattle/Tacoma Intl

Thu 10/1

12:50 pm-5:15 pm

1 stop39h 40m

$1,211

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 9/19

7:20 pm-10:40 am

1 stop28h 05m

Seattle/Tacoma Intl

Thu 10/1

12:50 pm-5:15 pm

1 stop39h 40m

$1,287

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 7/8

3:30 pm-12:45 pm

1 stop34h 00m

Seattle/Tacoma Intl

Fri 10/16

4:25 pm-5:20 pm

1 stop36h 10m

$1,397

Quickest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 7/9

6:00 pm-12:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

Thu 10/15

4:25 pm-4:45 pm

1 stop35h 35m

$1,399

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 7/8

10:05 am-12:45 pm

1 stop39h 25m

Seattle/Tacoma Intl

Thu 10/15

4:25 pm-5:20 pm

1 stop36h 10m

$1,402

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 7/9

6:00 pm-12:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

Sat 10/17

4:25 pm-5:20 pm

1 stop36h 10m

$1,412

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 7/8

10:05 am-12:45 pm

1 stop39h 25m

Seattle/Tacoma Intl

Sat 10/17

4:25 pm-5:20 pm

1 stop36h 10m

$1,414

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 7/8

3:30 pm-12:45 pm

1 stop34h 00m

Seattle/Tacoma Intl

Sun 10/18

4:25 pm-5:20 pm

1 stop36h 10m

$1,420

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 7/9

6:00 pm-12:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

Thu 10/15

7:12 am-4:45 pm

2 stops44h 48m

$1,428

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 7/8

3:30 pm-12:45 pm

1 stop34h 00m

Seattle/Tacoma Intl

Sat 10/17

9:59 am-4:45 pm

2 stops42h 01m

$1,440

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 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 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	25h 35m
Direct flights	None

The fastest flight from Kathmandu to Seattle takes 25h 35m

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 25h 35m, 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 $1,006	Free Cancellation	Rating 8.2 1,555 reviews		Search Singapore Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Lakewood

Puyallup

Tukwila

Cle Elum

Federal Way

Fife

Marysville

Centralia

Kirkland

Shoreline

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.