How long is the flight from Kathmandu to Seattle?

Airlines like Korean Air fly from Kathmandu to Seattle in about 28h 05m. The time it takes to get you to your destination can typically vary by up to . The distance from Kathmandu to Seattle is about 11204 km.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What is the cheapest time of day to fly from KTM to SEA?

When flying from Kathmandu to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Kathmandu to Seattle?

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

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

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

₹ 86,443+ Cheap Flights from Kathmandu to Seattle

Cheap flight deals from Kathmandu to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Kathmandu to Seattle
Explore the most affordable flight options available from Kathmandu to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 September 2026.

Sat 10/1019:20 -

1 stop28h 05m

Thu 22/1012:50 -

1 stop39h 40m

Deal found 20/9₹ 115,640

Tue 20/1019:20 -

1 stop28h 05m

Sun 25/1012:00 -

1 stop40h 15m

Deal found 22/9₹ 115,736

Tue 3/1119:25 -

1 stop27h 25m

Sun 15/1111:00 -

1 stop40h 15m

Deal found 21/9₹ 122,819

Sun 18/1017:30 -

1 stop31h 40m

Sun 25/1016:50 -

1 stop34h 50m

Deal found 20/9₹ 131,722

Sun 11/1015:30 -

1 stop33h 40m

Fri 23/1016:25 -

1 stop28h 40m

Deal found 20/9₹ 131,914

Sun 18/1017:30 -

1 stop31h 40m

Sat 24/1016:25 -

1 stop35h 15m

Deal found 22/9₹ 132,009

Tue 3/1118:45 -

1 stop30h 40m

Tue 17/1115:50 -

1 stop35h 55m

Deal found 21/9₹ 132,584

Mon 12/1017:30 -

1 stop31h 40m

Fri 23/1016:25 -

1 stop28h 40m

Deal found 19/9₹ 133,158

Sat 31/1017:40 -

1 stop31h 45m

Mon 16/1115:50 -

1 stop26h 45m

Deal found 21/9₹ 135,264

Thu 15/1017:30 -

1 stop31h 40m

Sat 24/1016:25 -

1 stop27h 10m

Deal found 22/9₹ 135,360

Find flight deals from Kathmandu to Seattle

Round-trip from	₹ 115,640
One-way from	₹ 86,443
Popular in	June
Cheapest in	September
Average price	₹ 114,491

Korean Air
10/10-22/10
2 total stops
67h 45m total
Kathmandu to Seattle

Search Deals

Korean Air
13/10-31/12
1 total stop
28h 05m total
Kathmandu to Seattle

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (₹ 648,045 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (₹ 234,378 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Tue 13/10

19:20-10:40

1 stop28h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 86,443

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Sun 1/11

17:40-11:40

1 stop31h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 92,378

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Thu 5/11

18:45-11:40

1 stop30h 40m

Seattle/Tacoma Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 92,378

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Sat 21/11

18:45-11:40

1 stop30h 40m

Seattle/Tacoma Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 92,474

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Mon 12/10

10:05-12:25

1 stop39h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 92,665

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Mon 16/11

09:35-11:40

1 stop39h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 92,761

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Fri 13/11

19:25-09:05

1 stop27h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 99,462

Fastest return journey

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Mon 16/11

22:55-08:45

1 stop23h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 104,344

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Sat 10/10

19:20-10:40

1 stop28h 05m

Seattle/Tacoma Intl

Thu 22/10

12:50-17:15

1 stop39h 40m

₹ 115,640

KathmanduSeattle

KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl

KTMSEA

Kathmandu Tribhuvan

Sat 10/10

19:20-10:40

1 stop28h 05m

Seattle/Tacoma Intl

Thu 22/10

00:10-17:15

1 stop28h 20m

₹ 115,640

Flights are sorted by cheapest return flights first.

Deals found on 19/9

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Kathmandu to Seattle

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

KTM-SEA

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Kathmandu to Seattle?
Airlines like Korean Air fly from Kathmandu to Seattle in about 28h 05m. The time it takes to get you to your destination can typically vary by up to . The distance from Kathmandu to Seattle is about 11204 km.
Can I find deals for flights from Kathmandu to Seattle that include hotel bookings?
Yes. In addition to deals on Kathmandu to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Kathmandu to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to Seattle.
Can I find deals for business class flights from Kathmandu to Seattle?
Yes. Cheapflights offers flight deals from Kathmandu to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheap flights from Kathmandu to Seattle from ₹ 86,443

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Kathmandu to Seattle

Cheapest flights from Kathmandu to SeattleExplore the most affordable flight options available from Kathmandu to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 September 2026.

Explore the most affordable flight options available from Kathmandu to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 September 2026.

Best flights from Kathmandu to SeattleDiscover carefully curated flight deals from Kathmandu to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Discover carefully curated flight deals from Kathmandu to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Last-minute flights from Kathmandu to SeattleDiscover last-minute flight deals from Kathmandu to Seattle. Data last updated 23 September 2026 and is based on user searches.

Discover last-minute flight deals from Kathmandu to Seattle. Data last updated 23 September 2026 and is based on user searches.

One-way flights from Kathmandu to SeattleSearch for one-way flight options from Kathmandu to Seattle. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.

Search for one-way flight options from Kathmandu to Seattle. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.

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Best time to book a flight from Kathmandu to Seattle

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Related info for your journey

How long is the flight from Kathmandu to Seattle?

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

How can I find direct flights from Kathmandu to Seattle?

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

Browse thousands of different options on Cheapflights for your next trip

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Kathmandu and Seattle flights

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Cheapest flights from Kathmandu to Seattle
Explore the most affordable flight options available from Kathmandu to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 September 2026.

Best flights from Kathmandu to Seattle
Discover carefully curated flight deals from Kathmandu to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Last-minute flights from Kathmandu to Seattle
Discover last-minute flight deals from Kathmandu to Seattle. Data last updated 23 September 2026 and is based on user searches.

One-way flights from Kathmandu to Seattle
Search for one-way flight options from Kathmandu to Seattle. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.