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Cheap flights from Kathmandu to Seattle from $539

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kathmandu to Seattle departing on 3/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Kathmandu to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:20 pm - 12:42 amKTM-SEA
26h 07m2 stops
Multiple Airlines Logo
8:45 am - 9:50 pmSEA-KTM
23h 20m1 stop
$1,024Multiple Airlines
Find Deal
Tue, Dec 23 - Thu, Jan 1
Multiple Airlines Logo
12:25 am - 6:40 pmKTM-SEA
32h 00m2 stops
Multiple Airlines Logo
3:40 pm - 11:20 amSEA-KTM
29h 55m2 stops
$1,253Multiple Airlines
Find Deal
Mon, Dec 22 - Thu, Jan 1
Multiple Airlines Logo
10:55 pm - 7:16 pmKTM-SEA
34h 06m2 stops
Multiple Airlines Logo
10:05 am - 9:30 pmSEA-KTM
45h 40m2 stops
$1,255Multiple Airlines
Find Deal
Mon, Jan 19 - Sun, Mar 1
Multiple Airlines Logo
12:35 pm - 5:05 pmKTM-SEA
42h 15m1 stop
Multiple Airlines Logo
8:45 am - 9:50 pmSEA-KTM
23h 20m1 stop
$1,260Multiple Airlines
Find Deal
Tue, Dec 23 - Thu, Jan 1
Korean Air Logo
7:20 pm - 9:00 amKTM-SEA
27h 25m1 stop
Korean Air Logo
11:00 am - 5:45 pmSEA-KTM
41h 00m1 stop
$1,273Korean Air
Find Deal
Tue, Dec 23 - Thu, Jan 1
Multiple Airlines Logo
12:30 pm - 8:00 amKTM-SEA
33h 15m3 stops
Multiple Airlines Logo
8:45 am - 6:35 amSEA-KTM
32h 05m2 stops
$1,293Multiple Airlines
Find Deal
Mon, Jan 19 - Sun, Mar 1
Multiple Airlines Logo
10:20 pm - 6:40 pmKTM-SEA
34h 05m3 stops
Multiple Airlines Logo
10:05 am - 11:20 amSEA-KTM
35h 30m2 stops
$1,307Multiple Airlines
Find Deal
Tue, Dec 23 - Thu, Jan 1
Multiple Airlines Logo
12:20 pm - 9:31 amKTM-SEA
34h 56m2 stops
Multiple Airlines Logo
12:10 am - 11:25 pmSEA-KTM
33h 30m2 stops
$1,314Multiple Airlines
Find Deal
Mon, Jan 19 - Sat, Feb 28
Multiple Airlines Logo
10:05 am - 8:00 amKTM-SEA
35h 40m3 stops
Multiple Airlines Logo
12:10 am - 11:25 pmSEA-KTM
33h 30m2 stops
$1,343Multiple Airlines
Find Deal
Mon, Jan 19 - Sat, Feb 28
Turkish Airlines Logo
12:35 pm - 5:05 pmKTM-SEA
42h 15m1 stop
Turkish Airlines Logo
7:00 pm - 11:10 amSEA-KTM
26h 25m1 stop
$1,345Turkish Airlines
Find Deal
Mon, Jan 19 - Sun, Mar 1

Turkish Airlines flights from Kathmandu to Seattle

Our best Turkish Airlines deals on Kathmandu to Seattle flight tickets
Turkish Airlines
Jan 19
KTM12:35 pmKathmandu Tribhuvan
42h 15m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
Mar 1
SEA7:00 pmSeattle/Tacoma Intl
26h 25m
1 stop
KTM11:10 amKathmandu Tribhuvan
$1,345
Find similar
Turkish Airlines
Dec 10
KTM12:35 pmKathmandu Tribhuvan
42h 15m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
Jan 6
SEA7:00 pmSeattle/Tacoma Intl
26h 25m
1 stop
KTM11:10 amKathmandu Tribhuvan
$1,407
Find similar
Turkish Airlines
Dec 10
KTM12:35 pmKathmandu Tribhuvan
42h 15m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
Jan 6
SEA7:00 pmSeattle/Tacoma Intl
26h 25m
1 stop
KTM11:10 amKathmandu Tribhuvan
$1,408
Find similar

Qatar Airways flights from Kathmandu to Seattle

Our best Qatar Airways deals on Kathmandu to Seattle flight tickets
Qatar Airways
Mar 18
KTM7:05 pmKathmandu Tribhuvan
30h 20m
1 stop
SEA12:40 pmSeattle/Tacoma Intl
Mar 22
SEA5:05 pmSeattle/Tacoma Intl
26h 05m
1 stop
KTM7:55 amKathmandu Tribhuvan
$1,460
Find similar
Qatar Airways
Mar 5
KTM7:05 pmKathmandu Tribhuvan
30h 20m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 9
SEA8:15 amSeattle/Tacoma Intl
44h 50m
2 stops
KTM5:50 pmKathmandu Tribhuvan
$1,482
Find similar
Qatar Airways
Mar 5
KTM7:05 pmKathmandu Tribhuvan
40h 28m
2 stops
SEA9:48 pmSeattle/Tacoma Intl
Mar 9
SEA5:05 pmSeattle/Tacoma Intl
26h 05m
1 stop
KTM7:55 amKathmandu Tribhuvan
$1,489
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kathmandu to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 20, 2025.
Use the filters below to find and compare flights from Kathmandu to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 12/23

12:20 pm-12:42 am

2 stops26h 07m

Seattle/Tacoma Intl

Thu 1/1

8:45 am-9:50 pm

1 stop23h 20m

$1,024

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 12/22

12:25 am-6:40 pm

2 stops32h 00m

Seattle/Tacoma Intl

Thu 1/1

3:40 pm-11:20 am

2 stops29h 55m

$1,253

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 1/19

10:55 pm-7:16 pm

2 stops34h 06m

Seattle/Tacoma Intl

Sun 3/1

10:05 am-9:30 pm

2 stops45h 40m

$1,255

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 12/23

12:35 pm-5:05 pm

1 stop42h 15m

Seattle/Tacoma Intl

Thu 1/1

8:45 am-9:50 pm

1 stop23h 20m

$1,260

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 12/23

7:20 pm-9:00 am

1 stop27h 25m

Seattle/Tacoma Intl

Thu 1/1

11:00 am-5:45 pm

1 stop41h 00m

$1,273

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 1/19

12:30 pm-8:00 am

3 stops33h 15m

Seattle/Tacoma Intl

Sun 3/1

8:45 am-6:35 am

2 stops32h 05m

$1,293

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 12/23

10:20 pm-6:40 pm

3 stops34h 05m

Seattle/Tacoma Intl

Thu 1/1

10:05 am-11:20 am

2 stops35h 30m

$1,307

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 1/19

12:20 pm-9:31 am

2 stops34h 56m

Seattle/Tacoma Intl

Sat 2/28

12:10 am-11:25 pm

2 stops33h 30m

$1,314

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 1/19

10:05 am-8:00 am

3 stops35h 40m

Seattle/Tacoma Intl

Sat 2/28

12:10 am-11:25 pm

2 stops33h 30m

$1,343

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 1/19

12:35 pm-5:05 pm

1 stop42h 15m

Seattle/Tacoma Intl

Sun 3/1

7:00 pm-11:10 am

1 stop26h 25m

$1,345

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 day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Kathmandu is on a Saturday. momondo users have found tickets for Saturday departures for as low as $1,463. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Kathmandu because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,978.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Kathmandu in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,411 when looking at flights departing in the morning. Flights to Seattle are more costly at noon, with an average ticket price of $2,090. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Kathmandu to Seattle flights?

You could potentially save up to 8% 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 2025, prices for Kathmandu to Seattle flights are approximately 29% 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

Direct flights

None
There are no direct flights from Kathmandu to Seattle. There are no popular flight routes from Kathmandu to Seattle.
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  • 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 22h 51m, 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 $1,103Free CancellationRating
8.1
1,407 reviews
Search Singapore Airlines flights
Turkish AirlinesPriceFrom $1,313Free CancellationRating
7.3
4,043 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,717Free CancellationRating
8.1
3,422 reviews
Search Emirates 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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