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$781+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEA
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,382
(oojo)

One-way from

$781
(Kiwi.com)

Popular in

November

Cheapest in

June

Average price

$1,455
Provider with most accurate pricing for Kathmandu Tribhuvan-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Kathmandu Tribhuvan-Seattle/Tacoma Intl flights.
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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. 3% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This oojo deal was found by Cheapflights users on 3/25. 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.
Sun 5/187:40 amKTM - SEA
1 stop22h 20mTurkish Airlines
Sat 5/317:10 pmSEA - KTM
1 stop22h 20mTurkish Airlines
Deal found 3/25$1,382
This Trip.com deal was found by Cheapflights users on 3/25. 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 5/187:40 amKTM - SEA
1 stop22h 20mMultiple Airlines
Sat 5/312:15 pmSEA - KTM
2 stops39h 10mMultiple Airlines
Deal found 3/25$1,548
This CheapOair deal was found by Cheapflights users on 3/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/910:05 amKTM - SEA
2 stops46h 35mQatar Airways
Sun 10/124:30 pmSEA - KTM
1 stop35h 30mQatar Airways
Deal found 3/25$1,560
This oojo deal was found by Cheapflights users on 3/25. 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.
Thu 5/811:00 pmKTM - SEA
2 stops30h 25mSingapore Airlines
Sun 10/1210:15 amSEA - KTM
1 stop22h 40mSingapore Airlines
Deal found 3/25$1,575
This oojo deal was found by Cheapflights users on 3/25. 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.
Fri 5/23:35 pmKTM - SEA
1 stop34h 35mEmirates
Thu 7/35:15 pmSEA - KTM
1 stop42h 10mEmirates
Deal found 3/25$1,953

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 March 26, 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 5/18

7:40 am-5:15 pm

1 stop22h 20m

Seattle/Tacoma Intl

Sat 5/31

7:10 pm-6:15 am

1 stop22h 20m

$1,382

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 5/18

7:40 am-5:15 pm

1 stop22h 20m

Seattle/Tacoma Intl

Sat 5/31

2:15 pm-6:10 pm

2 stops39h 10m

$1,548

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 5/9

10:05 am-7:55 pm

2 stops46h 35m

Seattle/Tacoma Intl

Sun 10/12

4:30 pm-4:45 pm

1 stop35h 30m

$1,560

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Thu 5/8

11:00 pm-4:40 pm

2 stops30h 25m

Seattle/Tacoma Intl

Sun 10/12

10:15 am-9:40 pm

1 stop22h 40m

$1,575

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Fri 5/2

3:35 pm-1:25 pm

1 stop34h 35m

Seattle/Tacoma Intl

Thu 7/3

5:15 pm-12:10 am

1 stop42h 10m

$1,953

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 4/7

3:00 pm-4:10 pm

2 stops37h 55m

$781

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Mon 6/9

7:40 am-5:15 pm

1 stop22h 20m

$813

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Wed 4/9

11:30 pm-7:30 pm

2 stops32h 45m

$888

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sat 4/19

11:00 pm-8:45 am

1 stop70h 30m

$1,221

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

Sun 6/8

1:10 am-1:25 pm

1 stop25h 00m

$1,266

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 11 results
1
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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 March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
SmartFaresPrice Accuracy1 starTrust Score*3 stars

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kathmandu-Seattle flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

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 $411). 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 March 26, 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 March 26, 2025.
Singapore Airlines
8.1
Very good
1,284 reviews

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,284 reviews
Singapore Airlines
8.1
Very good
1,284 reviews

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Emirates
8.0
Very good
3,190 reviews
Singapore Airlines
8.1
Very good
1,284 reviews

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Thai Airways
7.8
Good
316 reviews
Singapore Airlines
8.1
Very good
1,284 reviews

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qatar Airways
7.4
Good
3,539 reviews
Singapore Airlines
8.1
Very good
1,284 reviews

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Turkish Airlines
7.3
Good
3,745 reviews
Singapore Airlines
8.1
Very good
1,284 reviews

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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?

    Turkish Airlines, at $1,382, was found to be the cheapest airline from Kathmandu to Seattle.Alternate airlines to your destination round-trip include Qatar Airways and Singapore Airlines. Users have found that Turkish Airlines is 18% 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 $813 on Turkish Airlines. Other airlines that offer cheap prices include Thai Airways from $888 and Singapore Airlines from $1,221 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 $411). 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
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,103Average$1,648FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$1,174Average$1,373FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,311Average$1,455FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,534Average$1,896FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,598Average$1,679FlexibilityNo cancel feeOn-time75%
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