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$573+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEA
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Find cheap flights from Kathmandu to Seattle with Cheapflights

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Cheap 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 January 21, 2026.

This FlightHub deal was found by Cheapflights users on 1/20. 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.
Mon 6/2211:00 pm
KTM
-
SEA
2 stops28h 07m
Multiple Airlines
Tue 7/149:55 am
SEA
-
KTM
2 stops47h 05m
Multiple Airlines
Deal found 1/20$1,055
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:20 pm
KTM
-
SEA
1 stop27h 25m
Korean Air
Sun 3/2912:50 pm
SEA
-
KTM
1 stop39h 15m
Korean Air
Deal found 1/20$1,164
This Korean Air deal was found by Cheapflights users on 1/20. 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.
Sat 6/207:20 pm
KTM
-
SEA
1 stop28h 15m
Korean Air
Sun 7/121:20 pm
SEA
-
KTM
1 stop38h 45m
Korean Air
Deal found 1/20$1,189
This Cathay Pacific deal was found by Cheapflights users on 1/20. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2211:00 pm
KTM
-
SEA
1 stop24h 20m
Cathay Pacific
Tue 7/1412:15 pm
SEA
-
KTM
1 stop20h 45m
Cathay Pacific
Deal found 1/20$1,218
This FlightHub deal was found by Cheapflights users on 1/21. 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.
Thu 2/127:05 pm
KTM
-
SEA
1 stop30h 20m
Qatar Airways
Wed 8/124:25 pm
SEA
-
KTM
1 stop27h 40m
Qatar Airways
Deal found 1/21$1,255
This Trip.com deal was found by Cheapflights users on 1/20. 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.
Tue 3/2410:55 pm
KTM
-
SEA
2 stops33h 00m
Multiple Airlines
Sat 3/281:10 am
SEA
-
KTM
2 stops31h 50m
Multiple Airlines
Deal found 1/20$1,266
This Trip.com deal was found by Cheapflights users on 1/20. 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.
Mon 3/1610:55 pm
KTM
-
SEA
2 stops32h 20m
Multiple Airlines
Thu 9/171:30 am
SEA
-
KTM
2 stops31h 30m
Multiple Airlines
Deal found 1/20$1,267
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Mon 3/165:40 pm
KTM
-
SEA
2 stops39h 52m
Qatar Airways
Wed 9/164:25 pm
SEA
-
KTM
1 stop28h 40m
Qatar Airways
Deal found 1/20$1,280
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:40 pm
KTM
-
SEA
1 stop31h 45m
Qatar Airways
Fri 3/135:05 pm
SEA
-
KTM
1 stop34h 35m
Qatar Airways
Deal found 1/20$1,291
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Sun 6/2111:00 pm
KTM
-
SEA
1 stop24h 20m
Cathay Pacific
Tue 7/1412:15 pm
SEA
-
KTM
1 stop20h 45m
Cathay Pacific
Deal found 1/20$1,298
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Thu 7/910:50 pm
KTM
-
SEA
1 stop46h 40m
Singapore Airlines
Tue 9/1510:15 am
SEA
-
KTM
1 stop22h 30m
Singapore Airlines
Deal found 1/20$1,302

Find 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 January 21, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$1,055
(FlightHub)

One-way from

$580
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$2,591
Provider with most accurate pricing for Kathmandu Tribhuvan-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kathmandu Tribhuvan-Seattle/Tacoma Intl flights.
Search Deals
From Kathmandu Tribhuvan to Seattle/Tacoma Intl
Search Deals
One-way flight from Kathmandu Tribhuvan to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($143 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($100 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
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

Sat 6/20

7:20 pm-10:50 am

1 stop28h 15m

Seattle/Tacoma Intl

Sun 7/12

1:20 pm-4:50 pm

1 stop38h 45m

$1,189

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 6/22

11:00 pm-10:35 am

1 stop24h 20m

Seattle/Tacoma Intl

Tue 7/14

12:15 pm-9:45 pm

1 stop20h 45m

$1,218

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 2/12

7:05 pm-11:40 am

1 stop30h 20m

Seattle/Tacoma Intl

Wed 8/12

4:25 pm-8:50 am

1 stop27h 40m

$1,255

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 7/9

10:50 pm-8:45 am

1 stop46h 40m

Seattle/Tacoma Intl

Tue 9/15

10:15 am-9:30 pm

1 stop22h 30m

$1,302

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 3/3

5:40 pm-11:40 am

1 stop31h 45m

Seattle/Tacoma Intl

Fri 3/13

11:40 am-7:55 am

2 stops31h 30m

$1,309

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 6/19

11:00 pm-10:35 am

1 stop24h 20m

Seattle/Tacoma Intl

Mon 7/13

12:15 pm-9:45 pm

1 stop20h 45m

$1,320

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 6/23

11:00 pm-10:35 am

1 stop24h 20m

Seattle/Tacoma Intl

Thu 7/16

12:15 pm-9:45 pm

1 stop20h 45m

$1,320

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 6/22

11:00 pm-10:35 am

1 stop24h 20m

Seattle/Tacoma Intl

Thu 7/16

12:15 pm-9:45 pm

1 stop20h 45m

$1,320

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 6/20

7:20 pm-10:50 am

1 stop28h 15m

Seattle/Tacoma Intl

Thu 7/16

1:20 pm-4:50 pm

1 stop38h 45m

$1,328

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 6/21

3:05 pm-4:24 pm

2 stops38h 04m

Seattle/Tacoma Intl

Tue 7/14

1:30 pm-9:50 am

2 stops31h 35m

$1,336

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 19 results
1
2

Compare providers for flights from Kathmandu to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kathmandu to Seattle in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kathmandu-Seattle flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Kathmandu-Seattle flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Kathmandu-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kathmandu-Seattle flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kathmandu-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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 January 21, 2026.
Peruse reviews from past customers who have flown with Emirates, Singapore Airlines, and Turkish Airlines 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.
Emirates
8.1
Very good
3,484 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Emirates
8.1
Very good
3,484 reviews
Emirates
8.1
Very good
3,484 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Singapore Airlines
8.1
Very good
1,434 reviews
Emirates
8.1
Very good
3,484 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.
Turkish Airlines
7.3
Good
4,201 reviews
Emirates
8.1
Very good
3,484 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

ATH - EWR

Smooth flight, good entertainment choices. Bad legroom in economy and mediocre food.

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.

  • How long is the flight from Kathmandu to Seattle?

    For as low as $1,218, Korean Air can have you in Seattle from Kathmandu in 24h 20m. There are 6962 mi between Kathmandu and Seattle. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Turkish Airlines, at $941, was found to be the cheapest airline from Kathmandu to Seattle.Alternate airlines to your destination round-trip include Singapore Airlines and Emirates. Users have found that Turkish Airlines is 41% 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 $563 on Turkish Airlines. Other airlines that offer cheap prices include Singapore Airlines from $572 and Qatar Airways from $733 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
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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 Spokane flights
Kathmandu to Portland flights

Top 3 airlines flying from Kathmandu to Seattle

Discover the top 3 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$941Average$1,455FlexibilityNo cancel feeOn-time77%
Singapore AirlinesCheapest$1,102Average$1,462FlexibilityNo cancel feeOn-time81%
EmiratesCheapest$1,717Average$1,744FlexibilityNo cancel feeOn-time75%

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