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$610+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$1,241
(Trip.com)

One-way from

$678
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$2,208
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 July 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 July 3, 2025.

This Trip.com deal was found by Cheapflights users on 7/3. 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.
Sun 8/171:30 pmKTM - SEA
2 stops34h 05mMultiple Airlines
Sun 8/241:20 pmSEA - KTM
2 stops34h 20mMultiple Airlines
Deal found 7/3$1,241
This Air France deal was found by Cheapflights users on 7/2. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/184:40 pmKTM - SEA
2 stops37h 30mKLM
Fri 8/156:40 pmSEA - KTM
2 stops50h 25mKLM
Deal found 7/2$1,349
This Qatar Airways deal was found by Cheapflights users on 7/3. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/126:00 pmKTM - SEA
1 stop31h 30mQatar Airways
Wed 11/53:40 pmSEA - KTM
1 stop35h 00mQatar Airways
Deal found 7/3$1,410
This Turkish Airlines deal was found by Cheapflights users on 7/3. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:40 amKTM - SEA
1 stop22h 20mTurkish Airlines
Sun 11/27:00 pmSEA - KTM
1 stop26h 25mTurkish Airlines
Deal found 7/3$1,449

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 July 3, 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

Sun 8/17

1:30 pm-10:50 am

2 stops34h 05m

Seattle/Tacoma Intl

Sun 8/24

1:20 pm-12:25 pm

2 stops34h 20m

$1,241

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 7/18

4:40 pm-5:25 pm

2 stops37h 30m

Seattle/Tacoma Intl

Fri 8/15

6:40 pm-9:50 am

2 stops50h 25m

$1,349

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 10/12

6:00 pm-12:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

Wed 11/5

3:40 pm-4:25 pm

1 stop35h 00m

$1,410

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 10/9

7:40 am-5:15 pm

1 stop22h 20m

Seattle/Tacoma Intl

Sun 11/2

7:00 pm-11:10 am

1 stop26h 25m

$1,449

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 11/8

2:05 pm-7:10 am

3 stops30h 50m

$610

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 9/11

7:40 am-5:15 pm

1 stop22h 20m

$792

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 10/28

7:20 pm-10:00 am

1 stop27h 25m

$913

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 $390). 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 July 3, 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.

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 July 3, 2025.
Peruse reviews from past customers who have flown with Korean Air, Emirates, and KLM from Kathmandu to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,101 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
1,101 reviews
Korean Air
8.4
Very good
1,101 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
3,287 reviews
Korean Air
8.4
Very good
1,101 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
1,367 reviews
Korean Air
8.4
Very good
1,101 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
3,594 reviews
Korean Air
8.4
Very good
1,101 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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.
Turkish Airlines
7.3
Good
3,895 reviews
Korean Air
8.4
Very good
1,101 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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?

    KLM, at $1,349, 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 KLM is 22% 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 $792 on Turkish Airlines. Other airlines that offer cheap prices include Korean Air from $935 and Qatar Airways from $949 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 $390). 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
Lynnwood
Renton
Olympia
Shoreline
Puyallup
Cle Elum
Centralia
Kent
Federal Way
Chehalis
Kirkland
Aberdeen
Shelton

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,103Average$1,567FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$1,174Average$1,358FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,313Average$1,459FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,534Average$1,830FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,598Average$1,731FlexibilityNo cancel feeOn-time75%

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