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

Turkish Airlines 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 July 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.

$715 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.

11:00 pm - 7:20 pm

KTM

SEA

33h 05m

2 stops

11:30 pm - 9:30 pm

SEA

KTM

32h 15m

2 stops

$1,320Multiple Airlines

Thu, Oct 15 - Thu, Dec 31

11:00 pm - 7:20 pm

KTM

SEA

33h 05m

2 stops

1:10 am - 9:30 pm

SEA

KTM

31h 35m

2 stops

$1,323Multiple Airlines

Fri, Oct 9 - Thu, Oct 29

10:50 pm - 8:45 am

KTM

SEA

22h 40m

1 stop

12:10 am - 11:25 pm

SEA

KTM

33h 30m

2 stops

$1,423Multiple Airlines

Thu, Oct 15 - Wed, Dec 30

3:30 pm - 12:45 pm

KTM

SEA

34h 00m

1 stop

4:25 pm - 2:15 pm

SEA

KTM

33h 05m

1 stop

$1,444Qatar Airways

Sat, Aug 22 - Sat, Aug 29

3:30 pm - 12:45 pm

KTM

SEA

34h 00m

1 stop

6:49 am - 2:15 pm

SEA

KTM

42h 41m

2 stops

$1,463Qatar Airways

Sat, Aug 22 - Sat, Aug 29

1:45 pm - 12:35 pm

KTM

SEA

36h 35m

2 stops

4:05 pm - 8:20 am

SEA

KTM

26h 30m

1 stop

$1,506Multiple Airlines

Thu, Nov 5 - Fri, Nov 20

12:25 am - 5:30 pm

KTM

SEA

30h 50m

2 stops

12:10 am - 11:25 pm

SEA

KTM

33h 30m

2 stops

$1,509Multiple Airlines

Wed, Nov 4 - Thu, Nov 19

11:00 pm - 7:10 am

KTM

SEA

45h 55m

1 stop

8:45 am - 9:50 pm

SEA

KTM

47h 20m

1 stop

$1,534Singapore Airlines

Thu, Nov 5 - Fri, Nov 20

12:25 am - 7:50 pm

KTM

SEA

32h 10m

3 stops

4:25 pm - 8:50 am

SEA

KTM

27h 40m

1 stop

$1,561Multiple Airlines

Fri, Aug 21 - Sat, Aug 29

10:50 pm - 8:45 am

KTM

SEA

22h 40m

1 stop

3:50 pm - 8:20 am

SEA

KTM

26h 45m

1 stop

$1,568Multiple Airlines

Thu, Oct 15 - Thu, Dec 31

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Singapore Airlines flights from Kathmandu to Seattle

Our best Singapore Airlines deals on Kathmandu to Seattle flight tickets

Singapore Airlines

Nov 5

KTM11:00 pmKathmandu Tribhuvan

45h 55m

1 stop

SEA7:10 amSeattle/Tacoma Intl

Nov 20

SEA8:45 amSeattle/Tacoma Intl

47h 20m

1 stop

KTM9:50 pmKathmandu Tribhuvan

$1,534

Singapore Airlines

Oct 9

KTM11:10 pmKathmandu Tribhuvan

46h 20m

1 stop

SEA8:45 amSeattle/Tacoma Intl

Oct 30

SEA9:45 amSeattle/Tacoma Intl

23h 20m

1 stop

KTM9:50 pmKathmandu Tribhuvan

$1,600

Korean Air flights from Kathmandu to Seattle

Our best Korean Air deals on Kathmandu to Seattle flight tickets

Korean Air

Aug 22

KTM7:20 pmKathmandu Tribhuvan

28h 25m

1 stop

SEA11:00 amSeattle/Tacoma Intl

Sep 20

SEA12:50 pmSeattle/Tacoma Intl

39h 40m

1 stop

KTM5:15 pmKathmandu Tribhuvan

$3,410

Korean Air

Aug 22

KTM7:20 pmKathmandu Tribhuvan

28h 25m

1 stop

SEA11:00 amSeattle/Tacoma Intl

Sep 17

SEA12:50 pmSeattle/Tacoma Intl

39h 40m

1 stop

KTM5:15 pmKathmandu Tribhuvan

$3,802

Korean Air

Aug 22

KTM7:20 pmKathmandu Tribhuvan

31h 02m

1 stop

SEA1:37 pmSeattle/Tacoma Intl

Sep 17

SEA1:00 pmSeattle/Tacoma Intl

39h 30m

1 stop

KTM5:15 pmKathmandu Tribhuvan

$4,585

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 10/15

11:00 pm-7:20 pm

2 stops33h 05m

Seattle/Tacoma Intl

Thu 12/31

11:30 pm-9:30 pm

2 stops32h 15m

$1,320

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 10/9

11:00 pm-7:20 pm

2 stops33h 05m

Seattle/Tacoma Intl

Thu 10/29

1:10 am-9:30 pm

2 stops31h 35m

$1,323

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 10/15

10:50 pm-8:45 am

1 stop22h 40m

Seattle/Tacoma Intl

Wed 12/30

12:10 am-11:25 pm

2 stops33h 30m

$1,423

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 8/22

3:30 pm-12:45 pm

1 stop34h 00m

Seattle/Tacoma Intl

Sat 8/29

4:25 pm-2:15 pm

1 stop33h 05m

$1,444

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 8/22

3:30 pm-12:45 pm

1 stop34h 00m

Seattle/Tacoma Intl

Sat 8/29

6:49 am-2:15 pm

2 stops42h 41m

$1,463

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 11/5

1:45 pm-12:35 pm

2 stops36h 35m

Seattle/Tacoma Intl

Fri 11/20

4:05 pm-8:20 am

1 stop26h 30m

$1,506

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 11/4

12:25 am-5:30 pm

2 stops30h 50m

Seattle/Tacoma Intl

Thu 11/19

12:10 am-11:25 pm

2 stops33h 30m

$1,509

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 11/5

11:00 pm-7:10 am

1 stop45h 55m

Seattle/Tacoma Intl

Fri 11/20

8:45 am-9:50 pm

1 stop47h 20m

$1,534

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 8/21

12:25 am-7:50 pm

3 stops32h 10m

Seattle/Tacoma Intl

Sat 8/29

4:25 pm-8:50 am

1 stop27h 40m

$1,561

Quickest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 10/15

10:50 pm-8:45 am

1 stop22h 40m

Seattle/Tacoma Intl

Thu 12/31

3:50 pm-8:20 am

1 stop26h 45m

$1,568

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 30% 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 July 2026, prices for Kathmandu to Seattle flights are approximately 0% 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	33h 05m
Direct flights	None

The fastest flight from Kathmandu to Seattle takes 33h 05m

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 33h 05m, 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 July 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 1,578 reviews		Search Singapore Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Lakewood

Tukwila

Puyallup

Fife

Federal Way

Cle Elum

Marysville

Kirkland

Centralia

Shoreline

Lacey

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.