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$585+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$1,088
(Kiwi.com)

One-way from

$585
(Kiwi.com)

Popular in

November

Cheapest in

October

Average price

$1,282
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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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:15 pmKTM - SEA
2 stops42h 05mMultiple Airlines
Thu 1/228:45 amSEA - KTM
1 stop23h 20mMultiple Airlines
Deal found 9/14$1,088
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:15 pmKTM - SEA
2 stops42h 05mMultiple Airlines
Thu 1/228:45 amSEA - KTM
1 stop23h 20mMultiple Airlines
Deal found 9/14$1,093
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:15 pmKTM - SEA
2 stops42h 05mMultiple Airlines
Thu 1/228:45 amSEA - KTM
1 stop23h 20mMultiple Airlines
Deal found 9/14$1,100
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:15 pmKTM - SEA
2 stops42h 05mMultiple Airlines
Thu 1/228:45 amSEA - KTM
1 stop23h 20mMultiple Airlines
Deal found 9/14$1,107
This Trip.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/151:25 pmKTM - SEA
2 stops40h 35mMultiple Airlines
Wed 10/227:10 pmSEA - KTM
2 stops34h 15mMultiple Airlines
Deal found 9/15$1,197
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/212:15 pmKTM - SEA
2 stops38h 35mMultiple Airlines
Thu 1/228:45 amSEA - KTM
1 stop23h 20mMultiple Airlines
Deal found 9/14$1,200
This Korean Air deal was found by Cheapflights users on 9/14. 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 12/207:20 pmKTM - SEA
1 stop27h 25mKorean Air
Thu 1/2211:00 amSEA - KTM
1 stop41h 00mKorean Air
Deal found 9/14$1,205
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/192:15 pmKTM - SEA
2 stops38h 35mMultiple Airlines
Thu 1/228:45 amSEA - KTM
1 stop23h 20mMultiple Airlines
Deal found 9/14$1,212
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:15 pmKTM - SEA
2 stops32h 10mMultiple Airlines
Sat 1/248:45 amSEA - KTM
1 stop23h 20mMultiple Airlines
Deal found 9/14$1,251

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 September 16, 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

Tue 2/3

11:00 pm-7:10 am

1 stop45h 55m

Seattle/Tacoma Intl

Tue 3/10

9:45 am-9:40 pm

1 stop23h 10m

$1,203

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 12/23

7:20 pm-9:00 am

1 stop27h 25m

Seattle/Tacoma Intl

Sun 1/25

11:00 am-5:45 pm

1 stop41h 00m

$1,205

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 12/23

7:20 pm-9:00 am

1 stop27h 25m

Seattle/Tacoma Intl

Thu 1/22

11:00 am-5:45 pm

1 stop41h 00m

$1,205

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 12/20

7:20 pm-9:00 am

1 stop27h 25m

Seattle/Tacoma Intl

Sun 1/25

11:00 am-5:45 pm

1 stop41h 00m

$1,205

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 10/15

7:05 pm-12:45 pm

1 stop30h 25m

Seattle/Tacoma Intl

Wed 10/22

10:15 am-10:15 am

2 stops35h 15m

$1,330

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 2/3

11:00 pm-7:10 am

1 stop45h 55m

Seattle/Tacoma Intl

Tue 3/10

12:50 pm-9:50 pm

2 stops44h 15m

$1,338

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 10/14

12:35 am-7:15 pm

2 stops31h 25m

Seattle/Tacoma Intl

Tue 10/21

12:30 am-11:35 pm

2 stops34h 20m

$1,411

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 12/1

2:15 pm-6:40 pm

3 stops42h 10m

$585

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 11/5

2:00 pm-7:10 am

2 stops30h 55m

$602

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Tue 10/7

6:30 am-9:05 pm

3 stops51h 20m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 14 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 June is currently the most expensive (average of $387). 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 September 16, 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.

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 September 16, 2025.
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
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.
Emirates
8.1
Very good
3,336 reviews
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.
Singapore Airlines
8.1
Very good
1,365 reviews
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.
Turkish Airlines
7.3
Good
3,968 reviews
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

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 $1,205, Singapore Airlines can have you in Seattle from Kathmandu in 27h 25m. 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?

    Singapore Airlines, at $1,103, was found to be the cheapest airline from Kathmandu to Seattle.Alternate airlines to your destination round-trip include Turkish Airlines and Emirates. Users have found that Singapore Airlines is 30% cheaper than the other options available to this destination.

  • 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 June is currently the most expensive (average of $387). 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 Seattle?

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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,103Average$1,547FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,313Average$1,458FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,717Average$1,735FlexibilityNo cancel feeOn-time75%

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