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Cheap flights from Kathmandu to Seattle from $585

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 12/1. 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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0 bags

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Find the cheapest flights from Kathmandu to Seattle

Cheap round-trip flights

Multiple Airlines Logo
1:45 pm - 5:05 pmKTM-SEA
41h 05m2 stops
Multiple Airlines Logo
7:00 pm - 8:05 pmSEA-KTM
35h 20m2 stops
$1,171Multiple Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 23
Multiple Airlines Logo
1:25 pm - 5:15 pmKTM-SEA
40h 35m2 stops
Multiple Airlines Logo
7:10 pm - 6:10 pmSEA-KTM
34h 15m2 stops
$1,197Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Singapore Airlines Logo
11:00 pm - 7:10 amKTM-SEA
45h 55m1 stop
Singapore Airlines Logo
9:45 am - 9:40 pmSEA-KTM
23h 10m1 stop
$1,203Singapore Airlines
Find Deal
Tue, Feb 3 - Tue, Mar 10
Multiple Airlines Logo
1:45 pm - 12:10 pmKTM-SEA
36h 10m2 stops
Multiple Airlines Logo
2:00 pm - 8:05 pmSEA-KTM
40h 20m2 stops
$1,317Multiple Airlines
Find Deal
Mon, Nov 10 - Thu, Nov 27
Qatar Airways Logo
7:05 pm - 12:45 pmKTM-SEA
30h 25m1 stop
Qatar Airways Logo
10:15 am - 10:15 amSEA-KTM
35h 15m2 stops
$1,330Qatar Airways
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
11:00 pm - 7:10 amKTM-SEA
45h 55m1 stop
Multiple Airlines Logo
12:50 pm - 9:50 pmSEA-KTM
44h 15m2 stops
$1,338Multiple Airlines
Find Deal
Tue, Feb 3 - Tue, Mar 10
Qatar Airways Logo
6:00 pm - 12:45 pmKTM-SEA
31h 30m1 stop
Qatar Airways Logo
4:30 pm - 10:15 amSEA-KTM
29h 00m1 stop
$1,360Qatar Airways
Find Deal
Wed, Oct 15 - Wed, Oct 22
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
$1,395Turkish Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 23
Turkish Airlines Logo
7:40 am - 5:15 pmKTM-SEA
22h 20m1 stop
Turkish Airlines Logo
7:00 pm - 11:10 amSEA-KTM
26h 25m1 stop
$1,426Turkish Airlines
Find Deal
Tue, Oct 7 - Fri, Dec 19
Emirates Logo
12:20 am - 1:25 pmKTM-SEA
25h 50m1 stop
Emirates Logo
5:15 pm - 6:30 amSEA-KTM
24h 30m1 stop
$1,611Emirates
Find Deal
Tue, Oct 14 - Wed, Oct 22

Turkish Airlines flights from Kathmandu to Seattle

Our best Turkish Airlines deals on Kathmandu to Seattle flight tickets
Turkish Airlines
Nov 9
KTM12:35 pmKathmandu Tribhuvan
42h 15m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
Nov 23
SEA7:00 pmSeattle/Tacoma Intl
26h 25m
1 stop
KTM11:10 amKathmandu Tribhuvan
$1,395
Find similar
Turkish Airlines
Oct 7
KTM7:40 amKathmandu Tribhuvan
22h 20m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
Dec 19
SEA7:00 pmSeattle/Tacoma Intl
26h 25m
1 stop
KTM11:10 amKathmandu Tribhuvan
$1,426
Find similar
Turkish Airlines
Sep 26
KTM7:40 amKathmandu Tribhuvan
39h 40m
1 stop
SEA10:35 amSeattle/Tacoma Intl
Oct 15
SEA7:10 pmSeattle/Tacoma Intl
22h 20m
1 stop
KTM6:15 amKathmandu Tribhuvan
$5,192
Find similar

Qatar Airways flights from Kathmandu to Seattle

Our best Qatar Airways deals on Kathmandu to Seattle flight tickets
Qatar Airways
Oct 15
KTM7:05 pmKathmandu Tribhuvan
30h 25m
1 stop
SEA12:45 pmSeattle/Tacoma Intl
Oct 22
SEA10:15 amSeattle/Tacoma Intl
35h 15m
2 stops
KTM10:15 amKathmandu Tribhuvan
$1,330
Find similar
Qatar Airways
Oct 15
KTM6:00 pmKathmandu Tribhuvan
31h 30m
1 stop
SEA12:45 pmSeattle/Tacoma Intl
Oct 22
SEA4:30 pmSeattle/Tacoma Intl
29h 00m
1 stop
KTM10:15 amKathmandu Tribhuvan
$1,360
Find similar
Qatar Airways
Oct 25
KTM10:05 amKathmandu Tribhuvan
39h 20m
1 stop
SEA12:40 pmSeattle/Tacoma Intl
Oct 31
SEA4:30 pmSeattle/Tacoma Intl
59h 10m
2 stops
KTM4:25 pmKathmandu Tribhuvan
$1,592
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 September 17, 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

Sun 11/9

1:45 pm-5:05 pm

2 stops41h 05m

Seattle/Tacoma Intl

Sun 11/23

7:00 pm-8:05 pm

2 stops35h 20m

$1,171

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 10/15

1:25 pm-5:15 pm

2 stops40h 35m

Seattle/Tacoma Intl

Wed 10/22

7:10 pm-6:10 pm

2 stops34h 15m

$1,197

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 2/3

11:00 pm-7:10 am

1 stop45h 55m

Seattle/Tacoma Intl

Tue 3/10

9:45 am-9:40 pm

1 stop23h 10m

$1,203

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 11/10

1:45 pm-12:10 pm

2 stops36h 10m

Seattle/Tacoma Intl

Thu 11/27

2:00 pm-8:05 pm

2 stops40h 20m

$1,317

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 10/15

7:05 pm-12:45 pm

1 stop30h 25m

Seattle/Tacoma Intl

Wed 10/22

10:15 am-10:15 am

2 stops35h 15m

$1,330

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 2/3

11:00 pm-7:10 am

1 stop45h 55m

Seattle/Tacoma Intl

Tue 3/10

12:50 pm-9:50 pm

2 stops44h 15m

$1,338

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 10/15

6:00 pm-12:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

Wed 10/22

4:30 pm-10:15 am

1 stop29h 00m

$1,360

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 11/9

12:35 pm-5:05 pm

1 stop42h 15m

Seattle/Tacoma Intl

Sun 11/23

7:00 pm-11:10 am

1 stop26h 25m

$1,395

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 10/7

7:40 am-5:15 pm

1 stop22h 20m

Seattle/Tacoma Intl

Fri 12/19

7:00 pm-11:10 am

1 stop26h 25m

$1,426

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 10/14

12:20 am-1:25 pm

1 stop25h 50m

Seattle/Tacoma Intl

Wed 10/22

5:15 pm-6:30 am

1 stop24h 30m

$1,611

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, 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 $1,240. If you don’t want to visit Seattle in October, then you should wait until September to fly from Kathmandu, when ticket prices are also cheap, with an average price of $1,282.

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 1% 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 2025, prices for Kathmandu to Seattle flights are approximately 19% more expensive 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 20m, 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
1,367 reviews
Search Singapore Airlines flights
Turkish AirlinesPriceFrom $1,313Free CancellationRating
7.3
3,965 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,717Free CancellationRating
8.1
3,339 reviews
Search Emirates flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
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Fife
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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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