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.

$681 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

46h 40m

1 stop

8:45 am - 9:50 pm

SEA

KTM

23h 20m

1 stop

$1,302Singapore Airlines

Tue, Oct 6 - Tue, Jan 5

11:10 pm - 8:45 am

KTM

SEA

46h 20m

1 stop

10:15 am - 9:30 pm

SEA

KTM

46h 30m

1 stop

$1,303Singapore Airlines

Wed, Oct 7 - Fri, Apr 2

10:35 pm - 1:40 pm

KTM

SEA

27h 50m

2 stops

10:15 am - 9:30 pm

SEA

KTM

22h 30m

1 stop

$1,316Multiple Airlines

Sun, Aug 30 - Sun, Sep 6

12:25 am - 7:20 pm

KTM

SEA

31h 40m

2 stops

1:30 am - 9:45 pm

SEA

KTM

31h 30m

2 stops

$1,373Multiple Airlines

Tue, Oct 6 - Thu, Apr 1

11:00 pm - 6:40 pm

KTM

SEA

32h 25m

2 stops

12:10 am - 9:30 pm

SEA

KTM

55h 35m

2 stops

$1,375Multiple Airlines

Fri, Oct 16 - Sun, Nov 15

11:10 pm - 8:45 am

KTM

SEA

22h 20m

1 stop

5:55 pm - 9:30 pm

SEA

KTM

38h 50m

2 stops

$1,388Multiple Airlines

Wed, Oct 7 - Fri, Apr 2

12:25 am - 6:10 pm

KTM

SEA

31h 30m

2 stops

1:30 am - 9:45 pm

SEA

KTM

31h 30m

2 stops

$1,409Multiple Airlines

Sun, Nov 29 - Thu, May 13

1:25 pm - 1:25 pm

KTM

SEA

60h 45m

2 stops

4:05 pm - 6:35 pm

SEA

KTM

60h 45m

2 stops

$1,437Multiple Airlines

Tue, Oct 6 - Tue, Jan 5

6:00 pm - 7:02 pm

KTM

SEA

37h 47m

2 stops

8:30 pm - 8:50 am

SEA

KTM

47h 35m

2 stops

$1,447Multiple Airlines

Sun, Aug 30 - Sun, Sep 6

12:25 am - 7:10 pm

KTM

SEA

31h 30m

2 stops

1:30 am - 11:25 pm

SEA

KTM

33h 10m

2 stops

$1,450Multiple Airlines

Fri, Aug 28 - Fri, Sep 4

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KLM flights from Kathmandu to Seattle

Our best KLM deals on Kathmandu to Seattle flight tickets

KLM

Aug 7

KTM8:50 pmKathmandu Tribhuvan

51h 32m

2 stops

SEA11:37 amSeattle/Tacoma Intl

Aug 20

SEA1:50 pmSeattle/Tacoma Intl

31h 15m

2 stops

KTM9:50 amKathmandu Tribhuvan

$1,637

KLM

Aug 5

KTM8:50 pmKathmandu Tribhuvan

32h 22m

2 stops

SEA4:27 pmSeattle/Tacoma Intl

Aug 20

SEA1:50 pmSeattle/Tacoma Intl

31h 15m

2 stops

KTM9:50 amKathmandu Tribhuvan

$1,713

KLM

Dec 1

KTM2:30 pmKathmandu Tribhuvan

35h 05m

2 stops

SEA11:50 amSeattle/Tacoma Intl

May 14

SEA5:40 pmSeattle/Tacoma Intl

27h 25m

2 stops

KTM9:50 amKathmandu Tribhuvan

$1,724

Emirates flights from Kathmandu to Seattle

Our best Emirates deals on Kathmandu to Seattle flight tickets

Emirates

Nov 29

KTM7:40 pmKathmandu Tribhuvan

30h 40m

1 stop

SEA12:35 pmSeattle/Tacoma Intl

May 14

SEA5:15 pmSeattle/Tacoma Intl

32h 35m

1 stop

KTM2:35 pmKathmandu Tribhuvan

$1,700

Emirates

Aug 4

KTM9:05 amKathmandu Tribhuvan

41h 05m

1 stop

SEA1:25 pmSeattle/Tacoma Intl

Aug 20

SEA5:15 pmSeattle/Tacoma Intl

41h 35m

1 stop

KTM11:35 pmKathmandu Tribhuvan

$1,707

Emirates

Dec 2

KTM7:40 pmKathmandu Tribhuvan

30h 40m

1 stop

SEA12:35 pmSeattle/Tacoma Intl

May 14

SEA5:15 pmSeattle/Tacoma Intl

26h 05m

1 stop

KTM8:05 amKathmandu Tribhuvan

$1,723

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 10/6

10:50 pm-8:45 am

1 stop46h 40m

Seattle/Tacoma Intl

Tue 1/5

8:45 am-9:50 pm

1 stop23h 20m

$1,302

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 10/7

11:10 pm-8:45 am

1 stop46h 20m

Seattle/Tacoma Intl

Fri 4/2

10:15 am-9:30 pm

1 stop46h 30m

$1,303

Quickest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 8/30

10:35 pm-1:40 pm

2 stops27h 50m

Seattle/Tacoma Intl

Sun 9/6

10:15 am-9:30 pm

1 stop22h 30m

$1,316

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 10/6

12:25 am-7:20 pm

2 stops31h 40m

Seattle/Tacoma Intl

Thu 4/1

1:30 am-9:45 pm

2 stops31h 30m

$1,373

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 10/16

11:00 pm-6:40 pm

2 stops32h 25m

Seattle/Tacoma Intl

Sun 11/15

12:10 am-9:30 pm

2 stops55h 35m

$1,375

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 10/7

11:10 pm-8:45 am

1 stop22h 20m

Seattle/Tacoma Intl

Fri 4/2

5:55 pm-9:30 pm

2 stops38h 50m

$1,388

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 11/29

12:25 am-6:10 pm

2 stops31h 30m

Seattle/Tacoma Intl

Thu 5/13

1:30 am-9:45 pm

2 stops31h 30m

$1,409

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 10/6

1:25 pm-1:25 pm

2 stops60h 45m

Seattle/Tacoma Intl

Tue 1/5

4:05 pm-6:35 pm

2 stops60h 45m

$1,437

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 8/30

6:00 pm-7:02 pm

2 stops37h 47m

Seattle/Tacoma Intl

Sun 9/6

8:30 pm-8:50 am

2 stops47h 35m

$1,447

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 8/28

12:25 am-7:10 pm

2 stops31h 30m

Seattle/Tacoma Intl

Fri 9/4

1:30 am-11:25 pm

2 stops33h 10m

$1,450

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

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 2% 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	30h 15m
Direct flights	None

The fastest flight from Kathmandu to Seattle takes 30h 15m

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 30h 15m, 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 1,574 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.