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Cheap flights from Kathmandu to Seattle from $695

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 4/25. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:10 pm - 9:00 am
KTM
-
SEA
30h 35m
2 stops
Multiple Airlines Logo
10:15 am - 9:30 pm
SEA
-
KTM
22h 30m
1 stop
$1,018Multiple Airlines
Fri, Mar 20 - Tue, Sep 15
Multiple Airlines Logo
11:00 pm - 7:00 pm
KTM
-
SEA
32h 45m
2 stops
Multiple Airlines Logo
12:50 am - 9:45 pm
SEA
-
KTM
32h 10m
2 stops
$1,181Multiple Airlines
Mon, Jun 1 - Tue, Jun 30
Singapore Airlines Logo
11:05 pm - 8:10 am
KTM
-
SEA
45h 50m
1 stop
Singapore Airlines Logo
10:15 am - 9:30 pm
SEA
-
KTM
22h 30m
1 stop
$1,208Singapore Airlines
Wed, Mar 18 - Sun, Apr 5
Multiple Airlines Logo
10:55 pm - 7:10 pm
KTM
-
SEA
33h 00m
2 stops
Multiple Airlines Logo
1:30 am - 9:45 pm
SEA
-
KTM
31h 30m
2 stops
$1,237Multiple Airlines
Fri, Mar 20 - Mon, Sep 14
Singapore Airlines Logo
10:50 pm - 8:45 am
KTM
-
SEA
46h 40m
1 stop
Singapore Airlines Logo
10:15 am - 9:30 pm
SEA
-
KTM
22h 30m
1 stop
$1,329Singapore Airlines
Tue, Jun 30 - Fri, Jul 31
Singapore Airlines Logo
11:05 pm - 8:10 am
KTM
-
SEA
45h 50m
1 stop
Singapore Airlines Logo
10:15 am - 9:30 pm
SEA
-
KTM
22h 30m
1 stop
$1,333Singapore Airlines
Fri, Mar 20 - Tue, Sep 15
Multiple Airlines Logo
12:45 pm - 6:05 pm
KTM
-
SEA
42h 05m
1 stop
Multiple Airlines Logo
5:05 pm - 5:50 pm
SEA
-
KTM
36h 00m
1 stop
$1,342Multiple Airlines
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
1:45 pm - 1:35 pm
KTM
-
SEA
60h 35m
2 stops
Multiple Airlines Logo
5:05 pm - 6:35 pm
SEA
-
KTM
36h 45m
2 stops
$1,344Multiple Airlines
Thu, Mar 12 - Thu, Mar 19
Cathay Pacific Logo
11:00 pm - 10:20 am
KTM
-
SEA
24h 05m
1 stop
Cathay Pacific Logo
12:25 pm - 9:45 pm
SEA
-
KTM
20h 35m
1 stop
$1,363Cathay Pacific
Mon, Jun 1 - Wed, Jul 1
Qatar Airways Logo
9:10 am - 12:40 pm
KTM
-
SEA
40h 15m
1 stop
Qatar Airways Logo
5:05 pm - 4:25 pm
SEA
-
KTM
34h 35m
1 stop
$1,382Qatar Airways
Thu, Mar 12 - Thu, Mar 19

Qatar Airways flights from Kathmandu to Seattle

Our best Qatar Airways deals on Kathmandu to Seattle flight tickets
Qatar Airways
Feb 15
KTM7:05 pmKathmandu Tribhuvan
30h 20m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 24
SEA5:05 pmSeattle/Tacoma Intl
26h 05m
1 stop
KTM7:55 amKathmandu Tribhuvan
$1,259
Qatar Airways
Feb 12
KTM5:40 pmKathmandu Tribhuvan
31h 45m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 24
SEA5:05 pmSeattle/Tacoma Intl
26h 05m
1 stop
KTM7:55 amKathmandu Tribhuvan
$1,260
Qatar Airways
Feb 15
KTM7:05 pmKathmandu Tribhuvan
30h 20m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 25
SEA5:05 pmSeattle/Tacoma Intl
36h 00m
1 stop
KTM5:50 pmKathmandu Tribhuvan
$1,262

Cathay Pacific flights from Kathmandu to Seattle

Our best Cathay Pacific deals on Kathmandu to Seattle flight tickets
Cathay Pacific
Jun 1
KTM11:00 pmKathmandu Tribhuvan
24h 05m
1 stop
SEA10:20 amSeattle/Tacoma Intl
Jul 1
SEA12:25 pmSeattle/Tacoma Intl
20h 35m
1 stop
KTM9:45 pmKathmandu Tribhuvan
$1,363
Cathay Pacific
Jun 1
KTM11:00 pmKathmandu Tribhuvan
24h 05m
1 stop
SEA10:20 amSeattle/Tacoma Intl
Jul 1
SEA9:05 amSeattle/Tacoma Intl
47h 55m
2 stops
KTM9:45 pmKathmandu Tribhuvan
$1,422
Cathay Pacific
Apr 30
KTM11:00 pmKathmandu Tribhuvan
29h 35m
2 stops
SEA3:50 pmSeattle/Tacoma Intl
Aug 1
SEA12:25 pmSeattle/Tacoma Intl
20h 35m
1 stop
KTM9:45 pmKathmandu Tribhuvan
$1,453

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 February 11, 2026.
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

Fri 3/20

3:10 pm-9:00 am

2 stops30h 35m

Seattle/Tacoma Intl

Tue 9/15

10:15 am-9:30 pm

1 stop22h 30m

$1,018

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 6/1

11:00 pm-7:00 pm

2 stops32h 45m

Seattle/Tacoma Intl

Tue 6/30

12:50 am-9:45 pm

2 stops32h 10m

$1,181

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 3/18

11:05 pm-8:10 am

1 stop45h 50m

Seattle/Tacoma Intl

Sun 4/5

10:15 am-9:30 pm

1 stop22h 30m

$1,208

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 3/20

10:55 pm-7:10 pm

2 stops33h 00m

Seattle/Tacoma Intl

Mon 9/14

1:30 am-9:45 pm

2 stops31h 30m

$1,237

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 6/30

10:50 pm-8:45 am

1 stop46h 40m

Seattle/Tacoma Intl

Fri 7/31

10:15 am-9:30 pm

1 stop22h 30m

$1,329

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 3/20

11:05 pm-8:10 am

1 stop45h 50m

Seattle/Tacoma Intl

Tue 9/15

10:15 am-9:30 pm

1 stop22h 30m

$1,333

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 3/12

12:45 pm-6:05 pm

1 stop42h 05m

Seattle/Tacoma Intl

Thu 3/19

5:05 pm-5:50 pm

1 stop36h 00m

$1,342

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 3/12

1:45 pm-1:35 pm

2 stops60h 35m

Seattle/Tacoma Intl

Thu 3/19

5:05 pm-6:35 pm

2 stops36h 45m

$1,344

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 6/1

11:00 pm-10:20 am

1 stop24h 05m

Seattle/Tacoma Intl

Wed 7/1

12:25 pm-9:45 pm

1 stop20h 35m

$1,363

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 3/12

9:10 am-12:40 pm

1 stop40h 15m

Seattle/Tacoma Intl

Thu 3/19

5:05 pm-4:25 pm

1 stop34h 35m

$1,382

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

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 February 2026, prices for Kathmandu to Seattle flights are approximately 9% 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

Fastest flight time

22h 52m

Direct flights

None
The fastest flight from Kathmandu to Seattle takes 22h 52m
There are no direct flights from Kathmandu to Seattle. There are no popular flight routes from Kathmandu to Seattle.
Search flight deals

  • 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 52m, 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
8.2
1,452 reviews
Search Singapore Airlines flights
EmiratesPriceFrom $1,717Free CancellationRating
8.1
3,513 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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