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$650+ Cheap flights from Kathmandu (KTM) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEA
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Kathmandu to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Kathmandu (KTM) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 12, 2025.

Round-trip from

$1,256
(Mytrip)

One-way from

$650
(Trip.com)

Popular in

July

Cheapest in

October

Average price

$1,697
From Kathmandu Tribhuvan to Seattle/Tacoma Intl
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One-way flight from Kathmandu Tribhuvan to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 10% potential increase in price ($212 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Kathmandu to Seattle

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 junio 12, 2025.

This Trip.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/131:30 pmKTM - SEA
2 stops34h 05mMultiple Airlines
jue. 7/311:20 pmSEA - KTM
2 stops34h 20mMultiple Airlines
Deal found 6/11$1,255
This Korean Air deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/47:20 pmKTM - SEA
1 stop28h 15mKorean Air
sáb. 7/121:20 pmSEA - KTM
1 stop38h 45mKorean Air
Deal found 6/12$1,308
This Expedia deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/46:45 pmKTM - SEA
1 stop30h 45mQatar Airways
vie. 11/289:25 pmSEA - KTM
2 stops54h 20mQatar Airways
Deal found 6/10$1,344
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/117:40 amKTM - SEA
1 stop39h 40mTurkish Airlines
vie. 7/187:10 pmSEA - KTM
1 stop22h 20mTurkish Airlines
Deal found 6/12$1,354
This Emirates deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/2911:55 pmKTM - SEA
1 stop26h 15mEmirates
mar. 7/85:15 pmSEA - KTM
1 stop26h 00mEmirates
Deal found 6/12$1,669
This Singapore Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/111:10 pmKTM - SEA
3 stops37h 34mSingapore Airlines
mar. 10/216:50 pmSEA - KTM
2 stops38h 10mSingapore Airlines
Deal found 6/10$1,752
This KLM deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/14:40 pmKTM - SEA
2 stops35h 55mKLM
mar. 7/85:35 pmSEA - KTM
2 stops27h 30mKLM
Deal found 6/12$1,949

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
Use the filters below to find and compare flights from Kathmandu to Seattle that are best for you.

Fly from

Kathmandu

Fly to

Seattle

Route

Depart

Return

Price

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

mié. 7/23

1:25 pm-10:35 am

2 stops33h 55m

Seattle/Tacoma Intl

sáb. 8/23

10:15 am-9:45 pm

1 stop22h 45m

$1,256

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

vie. 7/4

7:20 pm-10:50 am

1 stop28h 15m

Seattle/Tacoma Intl

sáb. 7/12

1:20 pm-4:50 pm

1 stop38h 45m

$1,308

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

mar. 11/4

6:45 pm-11:45 am

1 stop30h 45m

Seattle/Tacoma Intl

vie. 11/28

9:25 pm-5:30 pm

2 stops54h 20m

$1,344

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

vie. 7/11

7:40 am-10:35 am

1 stop39h 40m

Seattle/Tacoma Intl

vie. 7/18

7:10 pm-6:15 am

1 stop22h 20m

$1,354

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

dom. 6/29

11:55 pm-1:25 pm

1 stop26h 15m

Seattle/Tacoma Intl

jue. 7/10

5:15 pm-8:00 am

1 stop26h 00m

$1,669

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

mié. 10/1

11:10 pm-11:59 pm

3 stops37h 34m

Seattle/Tacoma Intl

mar. 10/21

6:50 pm-9:45 pm

2 stops38h 10m

$1,752

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

mar. 7/1

4:40 pm-3:50 pm

2 stops35h 55m

Seattle/Tacoma Intl

mar. 7/8

5:35 pm-9:50 am

2 stops27h 30m

$1,949

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

dom. 6/22

3:00 pm-4:10 pm

2 stops37h 55m

$650

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

lun. 6/23

7:40 am-10:35 am

1 stop39h 40m

$796

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

dom. 6/22

10:05 am-12:45 pm

1 stop39h 25m

$957

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 12 results
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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.
Estimated round-trip 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.

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Kathmandu to Seattle (average of $238). Flying from Kathmandu to Seattle in July is currently the most expensive (average of $391). 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.

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

Find hourly flight availability from Kathmandu to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Kathmandu to Seattle in the morning. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight at noon.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated junio 12, 2025.
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very good
1,088 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Emirates
8.1
Very good
3,264 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Singapore Airlines
8.1
Very good
1,302 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
KLM
7.8
Good
1,358 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Qatar Airways
7.4
Good
3,584 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

Find useful and relevant information for your journey from Kathmandu to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Kathmandu to Seattle round-trip?

    Korean Air, at $1,308, was found to be the cheapest airline from Kathmandu to Seattle.Alternate airlines to your destination round-trip include Qatar Airways and Turkish Airlines. Users have found that Korean Air is 24% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Kathmandu to Seattle one-way?

    One-way options have recently been found by users for as low as $796 on Turkish Airlines. Other airlines that offer cheap prices include Qatar Airways from $957 and Emirates from $1,051 one-way.

  • 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 vacation 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.

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

    Currently, January is the cheapest month in which you can book a flight from Kathmandu to Seattle (average of $238). Flying from Kathmandu to Seattle in July is currently the most expensive (average of $391). 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

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Kathmandu to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Kathmandu to Portland flights
Kathmandu to Spokane flights

Top 5 airlines flying from Kathmandu to Seattle

Discover the top 5 airlines that operate flights from Kathmandu to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,103Average$1,572FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$1,174Average$1,358FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,313Average$1,458FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,598Average$1,731FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,658Average$1,836FlexibilityNo cancel feeOn-time68%

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