HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$595+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEA
ene. 7 — ene. 141
mié. 1/7
mié. 1/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kathmandu to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kathmandu to Seattle

Best flights from Kathmandu to Seattle
Discover carefully curated flight deals from Kathmandu to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 8, 2025.

This FlightHub deal was found by Cheapflights users on 12/5. 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.
mié. 2/119:10 amKTM - SEA
1 stop40h 15mQatar Airways
mié. 3/115:05 pmSEA - KTM
1 stop26h 05mQatar Airways
Deal found 12/5$1,153
This oojo deal was found by Cheapflights users on 12/7. 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.
jue. 2/1211:00 pmKTM - SEA
1 stop45h 55mSingapore Airlines
mar. 3/249:45 amSEA - KTM
1 stop23h 10mSingapore Airlines
Deal found 12/7$1,166
This oojo deal was found by Cheapflights users on 12/7. 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.
jue. 2/1211:00 pmKTM - SEA
1 stop21h 55mMultiple Airlines
mar. 3/241:55 pmSEA - KTM
2 stops43h 10mMultiple Airlines
Deal found 12/7$1,330
This KLM deal was found by Cheapflights users on 12/7. 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.
jue. 2/125:10 pmKTM - SEA
2 stops32h 15mKLM
mar. 3/244:00 pmSEA - KTM
2 stops29h 05mKLM
Deal found 12/7$1,377
This Turkish Airlines deal was found by Cheapflights users on 12/5. 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.
dom. 2/112:35 pmKTM - SEA
1 stop42h 15mTurkish Airlines
jue. 2/57:00 pmSEA - KTM
1 stop26h 25mTurkish Airlines
Deal found 12/5$1,423
This Qatar Airways deal was found by Cheapflights users on 12/5. 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.
dom. 2/15:40 pmKTM - SEA
2 stops39h 10mQatar Airways
jue. 2/54:05 pmSEA - KTM
1 stop36h 00mQatar Airways
Deal found 12/5$1,238

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 diciembre 8, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$1,153
(FlightHub)

One-way from

$595
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$1,330
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. 1% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 8, 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. 2/11

9:10 am-11:40 am

1 stop40h 15m

Seattle/Tacoma Intl

mié. 3/11

5:05 pm-7:55 am

1 stop26h 05m

$1,153

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

jue. 2/12

11:00 pm-7:10 am

1 stop45h 55m

Seattle/Tacoma Intl

mar. 3/24

9:45 am-9:40 pm

1 stop23h 10m

$1,166

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

dom. 2/1

5:40 pm-7:05 pm

2 stops39h 10m

Seattle/Tacoma Intl

jue. 2/5

4:05 pm-5:50 pm

1 stop36h 00m

$1,238

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

jue. 2/12

11:00 pm-7:10 am

1 stop21h 55m

Seattle/Tacoma Intl

mar. 3/24

1:55 pm-9:50 pm

2 stops43h 10m

$1,330

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

jue. 2/12

5:10 pm-11:40 am

2 stops32h 15m

Seattle/Tacoma Intl

mar. 3/24

4:00 pm-9:50 am

2 stops29h 05m

$1,377

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

dom. 2/1

12:35 pm-5:05 pm

1 stop42h 15m

Seattle/Tacoma Intl

jue. 2/5

7:00 pm-11:10 am

1 stop26h 25m

$1,423

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

dom. 12/21

12:20 pm-12:42 am

2 stops26h 07m

$645

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

jue. 12/18

10:50 am-11:40 am

2 stops38h 35m

$646

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

mar. 12/16

1:15 pm-6:22 pm

3 stops42h 52m

$664

KathmanduSeattle

KTM - SEA

KTMSEA

Kathmandu Tribhuvan

lun. 12/15

10:50 am-11:40 am

2 stops38h 35m

$671

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 14 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 December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
GurufarePrice 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

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 diciembre 8, 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 32% 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 diciembre 8, 2025.
Peruse reviews from past customers who have flown with Korean Air, Emirates, and Singapore 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.
Korean Air
8.4
Very good
1,183 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,183 reviews
Korean Air
8.4
Very good
1,183 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Emirates
8.1
Very good
3,432 reviews
Korean Air
8.4
Very good
1,183 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Singapore Airlines
8.1
Very good
1,411 reviews
Korean Air
8.4
Very good
1,183 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Turkish Airlines
7.3
Good
4,084 reviews
Korean Air
8.4
Very good
1,183 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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 $1,153, Qatar Airways can have you in Seattle from Kathmandu in 40h 15m. 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 Korean Air. Users have found that Turkish Airlines is 39% 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 Korean Air from $646 and Singapore Airlines from $724 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
Tacoma
SeaTac
Lakewood
Olympia
Ocean Shores
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Tukwila
Kent
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 4 airlines flying from Kathmandu to Seattle

Discover the top 4 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 diciembre 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,103Average$1,481FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$1,224Average$1,281FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,313Average$1,455FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,717Average$1,744FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.