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Cheap flights from Kathmandu to Seattle from $620

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 6/3. 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.
Qatar Airways Logo
6:00 pm - 12:55 pm
KTM
-
SEA
31h 40m
1 stop
Qatar Airways Logo
4:25 pm - 9:50 am
SEA
-
KTM
28h 40m
1 stop
$1,272Qatar Airways
Mon, Apr 6 - Mon, Oct 5
Qatar Airways Logo
6:15 pm - 12:45 pm
KTM
-
SEA
31h 15m
1 stop
Qatar Airways Logo
4:30 pm - 5:00 pm
SEA
-
KTM
35h 45m
1 stop
$1,274Qatar Airways
Sat, Apr 18 - Sat, Apr 25
Qatar Airways Logo
6:15 pm - 12:45 pm
KTM
-
SEA
31h 15m
1 stop
Qatar Airways Logo
4:30 pm - 7:55 am
SEA
-
KTM
26h 40m
1 stop
$1,275Qatar Airways
Tue, Apr 14 - Tue, Apr 21
Qatar Airways Logo
6:00 pm - 12:55 pm
KTM
-
SEA
31h 40m
1 stop
Qatar Airways Logo
4:30 pm - 5:00 pm
SEA
-
KTM
35h 45m
1 stop
$1,277Qatar Airways
Sat, Apr 11 - Thu, Apr 23
Qatar Airways Logo
6:00 pm - 12:55 pm
KTM
-
SEA
31h 40m
1 stop
Qatar Airways Logo
4:25 pm - 9:50 am
SEA
-
KTM
28h 40m
1 stop
$1,278Qatar Airways
Tue, Apr 7 - Mon, Oct 5
Qatar Airways Logo
6:15 pm - 12:45 pm
KTM
-
SEA
31h 15m
1 stop
Qatar Airways Logo
4:30 pm - 5:00 pm
SEA
-
KTM
35h 45m
1 stop
$1,280Qatar Airways
Thu, Apr 16 - Fri, Apr 24
Qatar Airways Logo
10:55 am - 12:45 pm
KTM
-
SEA
38h 35m
1 stop
Qatar Airways Logo
4:30 pm - 7:55 am
SEA
-
KTM
26h 40m
1 stop
$1,283Qatar Airways
Sat, May 2 - Tue, May 12
Qatar Airways Logo
10:55 am - 12:45 pm
KTM
-
SEA
38h 35m
1 stop
Qatar Airways Logo
4:30 pm - 7:55 am
SEA
-
KTM
26h 40m
1 stop
$1,285Qatar Airways
Mon, May 4 - Tue, May 12
Qatar Airways Logo
10:55 am - 12:45 pm
KTM
-
SEA
38h 35m
1 stop
Qatar Airways Logo
4:30 pm - 5:00 pm
SEA
-
KTM
35h 45m
1 stop
$1,286Qatar Airways
Sat, May 2 - Thu, May 14
Qatar Airways Logo
10:55 am - 12:45 pm
KTM
-
SEA
38h 35m
1 stop
Qatar Airways Logo
4:30 pm - 5:00 pm
SEA
-
KTM
35h 45m
1 stop
$1,288Qatar Airways
Mon, May 4 - Wed, May 13

Qatar Airways flights from Kathmandu to Seattle

Our best Qatar Airways deals on Kathmandu to Seattle flight tickets
Qatar Airways
Apr 6
KTM6:00 pmKathmandu Tribhuvan
31h 40m
1 stop
SEA12:55 pmSeattle/Tacoma Intl
Oct 5
SEA4:25 pmSeattle/Tacoma Intl
28h 40m
1 stop
KTM9:50 amKathmandu Tribhuvan
$1,272
Qatar Airways
Apr 18
KTM6:15 pmKathmandu Tribhuvan
31h 15m
1 stop
SEA12:45 pmSeattle/Tacoma Intl
Apr 25
SEA4:30 pmSeattle/Tacoma Intl
35h 45m
1 stop
KTM5:00 pmKathmandu Tribhuvan
$1,274
Qatar Airways
Apr 14
KTM6:15 pmKathmandu Tribhuvan
31h 15m
1 stop
SEA12:45 pmSeattle/Tacoma Intl
Apr 21
SEA4:30 pmSeattle/Tacoma Intl
26h 40m
1 stop
KTM7:55 amKathmandu Tribhuvan
$1,275

Emirates flights from Kathmandu to Seattle

Our best Emirates deals on Kathmandu to Seattle flight tickets
Emirates
Apr 3
KTM7:55 pmKathmandu Tribhuvan
30h 15m
1 stop
SEA1:25 pmSeattle/Tacoma Intl
Oct 4
SEA11:00 amSeattle/Tacoma Intl
47h 50m
2 stops
KTM11:35 pmKathmandu Tribhuvan
$3,531
Emirates
Apr 4
KTM7:55 pmKathmandu Tribhuvan
35h 25m
2 stops
SEA6:35 pmSeattle/Tacoma Intl
Oct 7
SEA5:15 pmSeattle/Tacoma Intl
26h 05m
1 stop
KTM8:05 amKathmandu Tribhuvan
$4,018
Emirates
Apr 4
KTM7:55 pmKathmandu Tribhuvan
35h 25m
2 stops
SEA6:35 pmSeattle/Tacoma Intl
Oct 8
SEA5:15 pmSeattle/Tacoma Intl
41h 35m
1 stop
KTM11:35 pmKathmandu Tribhuvan
$4,147

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 March 22, 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

Cheapest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 4/6

6:00 pm-12:55 pm

1 stop31h 40m

Seattle/Tacoma Intl

Mon 10/5

4:25 pm-9:50 am

1 stop28h 40m

$1,272

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 4/18

6:15 pm-12:45 pm

1 stop31h 15m

Seattle/Tacoma Intl

Sat 4/25

4:30 pm-5:00 pm

1 stop35h 45m

$1,274
Quickest round-trip

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 4/14

6:15 pm-12:45 pm

1 stop31h 15m

Seattle/Tacoma Intl

Tue 4/21

4:30 pm-7:55 am

1 stop26h 40m

$1,275

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 4/11

6:00 pm-12:55 pm

1 stop31h 40m

Seattle/Tacoma Intl

Thu 4/23

4:30 pm-5:00 pm

1 stop35h 45m

$1,277

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 4/7

6:00 pm-12:55 pm

1 stop31h 40m

Seattle/Tacoma Intl

Mon 10/5

4:25 pm-9:50 am

1 stop28h 40m

$1,278

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 4/16

6:15 pm-12:45 pm

1 stop31h 15m

Seattle/Tacoma Intl

Fri 4/24

4:30 pm-5:00 pm

1 stop35h 45m

$1,280

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 5/2

10:55 am-12:45 pm

1 stop38h 35m

Seattle/Tacoma Intl

Tue 5/12

4:30 pm-7:55 am

1 stop26h 40m

$1,283

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 5/4

10:55 am-12:45 pm

1 stop38h 35m

Seattle/Tacoma Intl

Tue 5/12

4:30 pm-7:55 am

1 stop26h 40m

$1,285

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 5/2

10:55 am-12:45 pm

1 stop38h 35m

Seattle/Tacoma Intl

Thu 5/14

4:30 pm-5:00 pm

1 stop35h 45m

$1,286

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 5/4

10:55 am-12:45 pm

1 stop38h 35m

Seattle/Tacoma Intl

Wed 5/13

4:30 pm-5:00 pm

1 stop35h 45m

$1,288

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 12% 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 March 2026, prices for Kathmandu to Seattle flights are approximately 6% 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

31h 15m

Direct flights

None
The fastest flight from Kathmandu to Seattle takes 31h 15m
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 31h 15m, 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 $1,148Free CancellationRating
8.2
1,483 reviews
Search Singapore Airlines flights
EmiratesPriceFrom $1,717Free CancellationRating
8.1
3,542 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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