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Cheap flights from Kathmandu to Seattle from $659

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Kathmandu to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air India Logo
7:35 am - 7:10 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
37h 20m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Air India Logo
11:29 am - 6:35 amSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
54h 21m3 stops Vancouver Intl Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl
$1,106Air India
Tue, Dec 22 - Sun, Mar 14
Multiple Airlines Logo
10:05 am - 7:10 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
34h 50m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Multiple Airlines Logo
11:29 am - 1:55 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
36h 41m3 stops San Francisco Vienna Intl New Delhi Indira Gandhi Intl
$1,121Multiple Airlines
Mon, Dec 21 - Sun, Feb 28
Air India Logo
7:35 am - 7:10 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
37h 20m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Air India Logo
11:29 am - 6:35 amSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
54h 21m3 stops Vancouver Intl Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl
$1,123Air India
Tue, Dec 22 - Sun, Mar 14
Multiple Airlines Logo
10:05 am - 7:10 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
34h 50m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Multiple Airlines Logo
10:39 pm - 8:40 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
57h 16m3 stops Vancouver Intl Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl
$1,123Multiple Airlines
Tue, Dec 22 - Sun, Mar 14
Air India Logo
7:35 am - 7:10 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
37h 20m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Air India Logo
11:29 am - 6:35 amSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
54h 21m3 stops Vancouver Intl Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl
$1,126Air India
Tue, Dec 22 - Sun, Mar 14
Air India Logo
5:10 pm - 12:59 pmKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
57h 34m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Air India Logo
9:59 am - 6:35 amSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
54h 51m3 stops Vancouver Intl Vienna Intl New Delhi Indira Gandhi Intl
$1,131Air India
Wed, Dec 23 - Sun, Jan 31
Multiple Airlines Logo
10:05 am - 7:10 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
34h 50m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Multiple Airlines Logo
11:05 pm - 4:10 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
27h 20m2 stops New York John F Kennedy Intl New Delhi Indira Gandhi Intl
$1,146Multiple Airlines
Mon, Dec 21 - Sun, Feb 28
Air India Logo
5:10 pm - 7:10 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
51h 45m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Air India Logo
11:05 pm - 8:40 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
32h 50m2 stops New York John F Kennedy Intl New Delhi Indira Gandhi Intl
$1,147Air India
Tue, Dec 22 - Sun, Mar 14
Air India Logo
7:35 am - 7:10 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
37h 20m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Air India Logo
11:05 pm - 8:40 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
32h 50m2 stops New York John F Kennedy Intl New Delhi Indira Gandhi Intl
$1,147Air India
Tue, Dec 22 - Sun, Mar 14

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Turkish Airlines flights from Kathmandu to Seattle

Our best Turkish Airlines deals on Kathmandu to Seattle flight tickets
Turkish Airlines
Dec 23
KTM12:45 pmKathmandu Tribhuvan
42h 10m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
Jan 31
SEA7:05 pmSeattle/Tacoma Intl
26h 30m
1 stop
KTM11:20 amKathmandu Tribhuvan
$1,626
Turkish Airlines
Nov 22
KTM12:45 pmKathmandu Tribhuvan
42h 10m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
Dec 27
SEA7:05 pmSeattle/Tacoma Intl
26h 30m
1 stop
KTM11:20 amKathmandu Tribhuvan
$1,968

Air India flights from Kathmandu to Seattle

Our best Air India deals on Kathmandu to Seattle flight tickets
Air India
Dec 22
KTM7:35 amKathmandu Tribhuvan
37h 20m
2 stops
SEA7:10 amSeattle/Tacoma Intl
Mar 14
SEA11:29 amSeattle/Tacoma Intl
54h 21m
3 stops
KTM6:35 amKathmandu Tribhuvan
$1,106
Air India
Dec 22
KTM7:35 amKathmandu Tribhuvan
37h 20m
2 stops
SEA7:10 amSeattle/Tacoma Intl
Mar 14
SEA11:29 amSeattle/Tacoma Intl
54h 21m
3 stops
KTM6:35 amKathmandu Tribhuvan
$1,123
Air India
Dec 22
KTM7:35 amKathmandu Tribhuvan
37h 20m
2 stops
SEA7:10 amSeattle/Tacoma Intl
Mar 14
SEA11:29 amSeattle/Tacoma Intl
54h 21m
3 stops
KTM6:35 amKathmandu Tribhuvan
$1,126

momondo Fare Finder

 
Use the filters below to find and compare flights from Kathmandu to Seattle that are best for you.

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Price

Cheapest round-trip

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 12/22

7:35 am-7:10 am

2 stops37h 20m

Seattle/Tacoma Intl

Sun 3/14

11:29 am-6:35 am

3 stops54h 21m

$1,106

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Mon 12/21

10:05 am-7:10 am

2 stops34h 50m

Seattle/Tacoma Intl

Sun 2/28

11:29 am-1:55 pm

3 stops36h 41m

$1,121

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 12/22

7:35 am-7:10 am

2 stops37h 20m

Seattle/Tacoma Intl

Sun 3/14

11:29 am-6:35 am

3 stops54h 21m

$1,123

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 12/22

10:05 am-7:10 am

2 stops34h 50m

Seattle/Tacoma Intl

Sun 3/14

10:39 pm-8:40 pm

3 stops57h 16m

$1,123

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 12/22

7:35 am-7:10 am

2 stops37h 20m

Seattle/Tacoma Intl

Sun 3/14

11:29 am-6:35 am

3 stops54h 21m

$1,126

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Wed 12/23

5:10 pm-12:59 pm

2 stops57h 34m

Seattle/Tacoma Intl

Sun 1/31

9:59 am-6:35 am

3 stops54h 51m

$1,131
Quickest round-trip

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Mon 12/21

10:05 am-7:10 am

2 stops34h 50m

Seattle/Tacoma Intl

Sun 2/28

11:05 pm-4:10 pm

2 stops27h 20m

$1,146

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 12/22

5:10 pm-7:10 am

2 stops51h 45m

Seattle/Tacoma Intl

Sun 3/14

11:05 pm-8:40 pm

2 stops32h 50m

$1,147

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 12/22

7:35 am-7:10 am

2 stops37h 20m

Seattle/Tacoma Intl

Sun 3/14

11:05 pm-8:40 pm

2 stops32h 50m

$1,147
Cheapest one-way

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Wed 12/16

7:35 am-7:10 am

2 stops37h 20m

$659

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Seattle from

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, January 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 January, then you should wait until September to fly from Kathmandu, when ticket prices are also cheap, with an average price of $1,196.

Can stopping save me money on Kathmandu to Seattle flights?

You could potentially save up to 36% 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 November 2026, prices for Kathmandu to Seattle flights are approximately 33% 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

Best Price Found

$659

Fastest flight time

34h 50m

Direct flights

None
The best one-way flight to Seattle from Kathmandu in the past 72 hours is $659. The best round-trip flight deal from Kathmandu to Seattle found on momondo in the last 72 hours is $1,106.
The fastest flight from Kathmandu to Seattle takes 34h 50m
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 34h 50m, 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?

  • 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?

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 AirlinesPriceFrom $1,006Free CancellationRating
8.2
1,633 reviews
Search Singapore Airlines flights

Traveling to a place near Seattle?

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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.

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