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Cheap flights from Kathmandu to Seattle from $572

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.
Multiple Airlines Logo
9:10 pm - 1:16 pmKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
28h 51m2 stops New Delhi Indira Gandhi Intl San Francisco
Multiple Airlines Logo
6:39 am - 12:05 amSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
28h 41m3 stops San Francisco Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl
$978Multiple Airlines
Mon, Oct 12 - Fri, Oct 23
Multiple Airlines Logo
9:40 pm - 2:41 pmKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
30h 46m2 stops New Delhi Indira Gandhi Intl Vancouver Intl
Multiple Airlines Logo
11:31 am - 6:35 amSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
30h 19m3 stops San Francisco Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl
$1,154Multiple Airlines
Thu, Mar 4 - Thu, Mar 25
Multiple Airlines Logo
7:35 am - 11:30 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
41h 40m2 stops New Delhi Indira Gandhi Intl San Francisco
Multiple Airlines Logo
11:31 am - 4:10 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
39h 54m3 stops San Francisco Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl
$1,158Multiple Airlines
Tue, Mar 2 - Thu, Mar 25
Korean Air Logo
7:25 pm - 2:10 pmKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
32h 30m1 stop Incheon Intl
Korean Air Logo
12:10 am - 5:00 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
28h 05m1 stop Incheon Intl
$1,209Korean Air
Fri, Mar 5 - Wed, Mar 24
Korean Air Logo
7:25 pm - 9:05 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
27h 25m1 stop Incheon Intl
Korean Air Logo
12:10 am - 5:00 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
28h 05m1 stop Incheon Intl
$1,209Korean Air
Tue, Mar 2 - Wed, Mar 24
Air India Logo
6:30 am - 11:55 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
42h 10m2 stops New Delhi Indira Gandhi Intl San Francisco
Air India Logo
11:18 pm - 8:40 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
32h 37m2 stops New York John F Kennedy Intl New Delhi Indira Gandhi Intl
$1,231Air India
Mon, Oct 12 - Fri, Oct 23
Multiple Airlines Logo
9:40 pm - 11:30 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
27h 35m2 stops New Delhi Indira Gandhi Intl San Francisco
Multiple Airlines Logo
10:41 pm - 8:40 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
33h 14m2 stops New York John F Kennedy Intl New Delhi Indira Gandhi Intl
$1,294Multiple Airlines
Tue, Mar 2 - Thu, Mar 25
Air India Logo
7:35 am - 6:56 pmKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
25h 06m2 stops New Delhi Indira Gandhi Intl San Francisco
Air India Logo
10:41 pm - 8:40 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
33h 14m2 stops New York John F Kennedy Intl New Delhi Indira Gandhi Intl
$1,311Air India
Thu, Mar 4 - Thu, Mar 25
Multiple Airlines Logo
9:40 pm - 11:30 amKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
27h 35m2 stops New Delhi Indira Gandhi Intl San Francisco
Multiple Airlines Logo
10:41 pm - 8:40 pmSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
33h 14m2 stops New York John F Kennedy Intl New Delhi Indira Gandhi Intl
$1,311Multiple Airlines
Fri, Mar 5 - Thu, Mar 25
Multiple Airlines Logo
9:40 pm - 1:38 pmKTM  Kathmandu Tribhuvan-SEA Seattle/Tacoma Intl
29h 43m2 stops New Delhi Indira Gandhi Intl San Francisco
Multiple Airlines Logo
11:31 am - 6:35 amSEA  Seattle/Tacoma Intl-KTM Kathmandu Tribhuvan
30h 19m3 stops San Francisco Kolkata Netaji S. Chandra New Delhi Indira Gandhi Intl
$1,370Multiple Airlines
Fri, Mar 5 - Thu, Mar 25

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Air India flights from Kathmandu to Seattle

Our best Air India deals on Kathmandu to Seattle flight tickets
Air India
Oct 12
KTM6:30 amKathmandu Tribhuvan
42h 10m
2 stops
SEA11:55 amSeattle/Tacoma Intl
Oct 23
SEA11:18 pmSeattle/Tacoma Intl
32h 37m
2 stops
KTM8:40 pmKathmandu Tribhuvan
$1,231
Air India
Mar 4
KTM7:35 amKathmandu Tribhuvan
25h 06m
2 stops
SEA6:56 pmSeattle/Tacoma Intl
Mar 25
SEA10:41 pmSeattle/Tacoma Intl
33h 14m
2 stops
KTM8:40 pmKathmandu Tribhuvan
$1,311
Air India
Oct 12
KTM9:10 pmKathmandu Tribhuvan
28h 51m
2 stops
SEA1:16 pmSeattle/Tacoma Intl
Oct 23
SEA11:18 pmSeattle/Tacoma Intl
32h 37m
2 stops
KTM8:40 pmKathmandu Tribhuvan
$1,428

Qatar Airways flights from Kathmandu to Seattle

Our best Qatar Airways deals on Kathmandu to Seattle flight tickets
Qatar Airways
Mar 4
KTM5:40 pmKathmandu Tribhuvan
31h 45m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 25
SEA4:50 pmSeattle/Tacoma Intl
35h 55m
1 stop
KTM5:30 pmKathmandu Tribhuvan
$1,487
Qatar Airways
Mar 4
KTM6:45 pmKathmandu Tribhuvan
30h 40m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 25
SEA8:10 amSeattle/Tacoma Intl
35h 25m
2 stops
KTM8:20 amKathmandu Tribhuvan
$1,525

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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Route

Depart

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Price

Cheapest round-trip

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Mon 10/12

9:10 pm-1:16 pm

2 stops28h 51m

Seattle/Tacoma Intl

Fri 10/23

6:39 am-12:05 am

3 stops28h 41m

$978

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Thu 3/4

9:40 pm-2:41 pm

2 stops30h 46m

Seattle/Tacoma Intl

Thu 3/25

11:31 am-6:35 am

3 stops30h 19m

$1,154

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 3/2

7:35 am-11:30 am

2 stops41h 40m

Seattle/Tacoma Intl

Thu 3/25

11:31 am-4:10 pm

3 stops39h 54m

$1,158

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Fri 3/5

7:25 pm-2:10 pm

1 stop32h 30m

Seattle/Tacoma Intl

Wed 3/24

12:10 am-5:00 pm

1 stop28h 05m

$1,209
Quickest round-trip

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 3/2

7:25 pm-9:05 am

1 stop27h 25m

Seattle/Tacoma Intl

Wed 3/24

12:10 am-5:00 pm

1 stop28h 05m

$1,209

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Mon 10/12

6:30 am-11:55 am

2 stops42h 10m

Seattle/Tacoma Intl

Fri 10/23

11:18 pm-8:40 pm

2 stops32h 37m

$1,231

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 3/2

9:40 pm-11:30 am

2 stops27h 35m

Seattle/Tacoma Intl

Thu 3/25

10:41 pm-8:40 pm

2 stops33h 14m

$1,294

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Thu 3/4

7:35 am-6:56 pm

2 stops25h 06m

Seattle/Tacoma Intl

Thu 3/25

10:41 pm-8:40 pm

2 stops33h 14m

$1,311

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Fri 3/5

9:40 pm-11:30 am

2 stops27h 35m

Seattle/Tacoma Intl

Thu 3/25

10:41 pm-8:40 pm

2 stops33h 14m

$1,311

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Fri 3/5

9:40 pm-1:38 pm

2 stops29h 43m

Seattle/Tacoma Intl

Thu 3/25

11:31 am-6:35 am

3 stops30h 19m

$1,370

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 29% 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 September 2026, prices for Kathmandu to Seattle flights are approximately 8% 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

$572

Fastest flight time

30h 10m

Direct flights

None
The best one-way flight to Seattle from Kathmandu in the past 72 hours is $572. The best round-trip flight deal from Kathmandu to Seattle found on momondo in the last 72 hours is $978.
The fastest flight from Kathmandu to Seattle takes 30h 10m
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 10m, 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
1,618 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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