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Cheap flights from Seattle to Kathmandu from C$ 1,409

SEA — KTM
25 Oct — 1 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Kathmandu

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Kathmandu

Mon 26/104:50 p.m. -
1 stop28h 15m
Sat 21/119:35 a.m. -
1 stop39h 50m
Deal found 23/9C$ 1,717
Sun 25/104:50 p.m. -
1 stop35h 55m
Sat 21/119:35 a.m. -
1 stop39h 50m
Deal found 23/9C$ 1,720
Mon 26/108:05 p.m. -
1 stop26h 30m
Sun 22/1112:45 p.m. -
1 stop42h 10m
Deal found 22/9C$ 1,744
Sat 24/104:25 p.m. -
1 stop28h 40m
Sat 21/119:35 a.m. -
1 stop39h 50m
Deal found 23/9C$ 1,774
Fri 6/113:50 p.m. -
1 stop35h 55m
Sat 21/119:35 a.m. -
1 stop39h 50m
Deal found 24/9C$ 1,778
Sat 31/108:05 p.m. -
1 stop26h 30m
Wed 25/1112:45 p.m. -
1 stop42h 10m
Deal found 21/9C$ 1,779
Sat 28/117:05 p.m. -
1 stop26h 30m
Tue 22/1212:45 p.m. -
1 stop42h 10m
Deal found 24/9C$ 1,781
Sun 1/118:05 p.m. -
1 stop25h 30m
Wed 25/1112:45 p.m. -
1 stop42h 10m
Deal found 21/9C$ 1,829
Tue 27/1011:54 a.m. -
2 stops40h 51m
Sat 21/119:35 a.m. -
1 stop39h 50m
Deal found 23/9C$ 1,844
Fri 23/104:25 p.m. -
1 stop28h 40m
Sat 21/119:35 a.m. -
1 stop39h 50m
Deal found 23/9C$ 1,868

Find flight deals from Seattle to Kathmandu

Round-trip from

C$ 1,652

One-way from

C$ 1,409

Popular in

July

Cheapest in

February

Average price

C$ 1,611
Qatar Airways
  • Qatar Airways
  • 10/1-19/2
  • 2 total stops
  • 65h 30m total
  • Seattle to Kathmandu
Search Deals
Qatar Airways
  • Qatar Airways
  • 20/11-31/12
  • 1 total stop
  • 26h 45m total
  • Seattle to Kathmandu
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 293 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Kathmandu that are best for you.

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Route

Depart

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Price

Cheapest round-trip

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Fri 20/11

3:50 p.m.-8:20 a.m.

1 stop26h 45m

Kathmandu Tribhuvan

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,409

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Fri 30/10

3:44 p.m.-5:30 p.m.

2 stops61h 01m

Kathmandu Tribhuvan

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,469

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Thu 5/11

6:00 a.m.-9:30 p.m.

2 stops49h 45m

Kathmandu Tribhuvan

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,515

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Wed 4/11

6:00 a.m.-9:30 p.m.

2 stops49h 45m

Kathmandu Tribhuvan

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,515
Quickest round-trip

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Thu 5/11

8:05 p.m.-11:20 a.m.

1 stop25h 30m

Kathmandu Tribhuvan

Wed 31/12

12:00 a.m.-10:30 a.m.

Nonstop0h 00m

C$ 1,672

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Wed 17/2

1:35 p.m.-4:25 p.m.

2 stops61h 05m

Kathmandu Tribhuvan

Thu 11/3

5:40 p.m.-11:40 a.m.

1 stop31h 45m

C$ 1,699

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Mon 15/2

3:50 p.m.-4:25 p.m.

1 stop34h 50m

Kathmandu Tribhuvan

Mon 8/3

6:45 p.m.-9:09 a.m.

2 stops52h 09m

C$ 1,702

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Sun 7/2

7:05 p.m.-11:20 a.m.

1 stop26h 30m

Kathmandu Tribhuvan

Thu 11/2

12:45 p.m.-5:10 p.m.

1 stop42h 10m

C$ 1,723

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Tue 16/2

3:50 p.m.-5:30 p.m.

1 stop35h 55m

Kathmandu Tribhuvan

Sun 7/3

6:45 p.m.-9:09 a.m.

2 stops52h 09m

C$ 1,765

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Tue 16/2

3:35 p.m.-4:25 p.m.

2 stops59h 05m

Kathmandu Tribhuvan

Wed 10/3

6:45 p.m.-11:40 a.m.

1 stop30h 40m

C$ 1,839

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/9

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Kathmandu

How far ahead should I book a flight from Seattle to Kathmandu?

The best time to book flights from Seattle to Kathmandu is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Kathmandu?

Currently, February is the cheapest month in which you can book a flight from Seattle to Kathmandu (average of C$ 1,478). Flying from Seattle to Kathmandu in July is currently the most expensive (average of C$ 2,148). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Seattle to Kathmandu?

Airfare is typical for this route at the moment.

Seattle to Kathmandu flights typically cost between C$ 1,464 and C$ 2,145 in January.
The cheapest round-trip price found within the last 5 days was C$ 1,652 on Qatar Airways (10 Jan-19 Feb).

Related info for your journey

  • How long is the flight from Seattle to Kathmandu?

    A quick flight from Seattle to Kathmandu can take about 26h 30m. Qatar Airways provides one of the quickest options available for as low as C$ 1,723. The distance between Seattle and Kathmandu is about 11204 km. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Seattle to Kathmandu that include hotel bookings?

    Yes. In addition to deals on Seattle to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Kathmandu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kathmandu.

  • Can I find deals for business class flights from Seattle to Kathmandu?

    Yes. Cheapflights offers flight deals from Seattle to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Kathmandu?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Kathmandu (average of C$ 1,478). Flying from Seattle to Kathmandu in July is currently the most expensive (average of C$ 2,148). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Kathmandu Tribhuvan Airport car rentals

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