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Kathmandu

$564+ Cheap flights from Seattle (SEA) to Kathmandu (KTM)

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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KTM
Apr 19 — Apr 261
Sat 4/19
Sat 4/26
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Kathmandu Tribhuvan are usually found in January or April, booked 82 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Seattle to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Kathmandu (KTM). 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 April 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,156
(oojo)

One-way from

$564
(Flightnetwork)

Popular in

June

Cheapest in

January

Average price

$1,207
Provider with most accurate pricing for Seattle/Tacoma Intl-Kathmandu Tribhuvan flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kathmandu Tribhuvan flights.
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From Seattle/Tacoma Intl to Kathmandu Tribhuvan
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One-way flight from Seattle/Tacoma Intl to Kathmandu Tribhuvan
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Highest demand for flights based on searches. 19% potential increase in price ($343 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Seattle to Kathmandu

Cheapest flights from Seattle to Kathmandu
Explore the most affordable flight options available from Seattle to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 14, 2025.

This oojo deal was found by Cheapflights users on 4/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:59 pmSEA - KTM
2 stops37h 01mCathay Pacific
Mon 6/211:00 pmKTM - SEA
2 stops32h 12mCathay Pacific
Deal found 4/14$1,156
This StudentUniverse deal was found by Cheapflights users on 4/13. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/610:15 amSEA - KTM
1 stop22h 45mSingapore Airlines
Tue 5/2711:00 pmKTM - SEA
1 stop46h 30mSingapore Airlines
Deal found 4/13$1,162
This Trip.com deal was found by Cheapflights users on 4/12. 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.
Fri 5/164:30 pmSEA - KTM
2 stops28h 35mMultiple Airlines
Sun 5/254:40 pmKTM - SEA
2 stops56h 50mMultiple Airlines
Deal found 4/12$1,242
This Justfly.com deal was found by Cheapflights users on 4/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2412:45 pmSEA - KTM
2 stops52h 45mTurkish Airlines
Thu 6/197:40 amKTM - SEA
1 stop22h 20mTurkish Airlines
Deal found 4/13$1,413
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/134:30 pmSEA - KTM
1 stop35h 30mQatar Airways
Mon 11/36:45 pmKTM - SEA
1 stop30h 45mQatar Airways
Deal found 4/14$1,575

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Kathmandu 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 April 14, 2025.
Use the filters below to find and compare flights from Seattle to Kathmandu that are best for you.

Fly from

Seattle

Fly to

Kathmandu

Route

Depart

Return

Price

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 5/13

7:59 pm-9:45 pm

2 stops37h 01m

Kathmandu Tribhuvan

Mon 6/2

11:00 pm-6:27 pm

2 stops32h 12m

$1,156

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 5/6

10:15 am-9:45 pm

1 stop22h 45m

Kathmandu Tribhuvan

Tue 5/27

11:00 pm-8:45 am

1 stop46h 30m

$1,162

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Fri 5/16

4:30 pm-9:50 am

2 stops28h 35m

Kathmandu Tribhuvan

Sun 5/25

4:40 pm-12:45 pm

2 stops56h 50m

$1,242

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 4/24

12:45 pm-6:15 am

2 stops52h 45m

Kathmandu Tribhuvan

Thu 6/19

7:40 am-5:15 pm

1 stop22h 20m

$1,413

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 5/15

4:30 pm-8:50 am

1 stop27h 35m

Kathmandu Tribhuvan

Thu 5/22

10:05 am-12:45 pm

1 stop39h 25m

$1,766

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Sun 4/27

5:15 pm-11:05 pm

1 stop41h 05m

Kathmandu Tribhuvan

Sat 5/24

11:55 pm-1:25 pm

1 stop26h 15m

$2,028

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 5/27

4:30 pm-8:50 am

1 stop27h 35m

$564

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Fri 7/4

3:44 pm-9:45 pm

2 stops41h 16m

$736

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Fri 7/4

10:15 am-9:45 pm

1 stop46h 45m

$998

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Mon 5/26

1:50 am-9:45 pm

2 stops31h 10m

$1,140

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 12 results
1
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Compare providers for flights from Seattle to Kathmandu

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 Seattle to Kathmandu in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust 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 Seattle-Kathmandu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Kathmandu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Kathmandu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Kathmandu 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 Seattle-Kathmandu 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 Seattle to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Seattle 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 Seattle to Kathmandu

How far ahead should I book a flight from Seattle to Kathmandu?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Kathmandu. Price data was last updated on April 11, 2025.

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Kathmandu. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Kathmandu?

Currently, September is the cheapest month in which you can book a flight from Seattle to Kathmandu (average of $1,237). Flying from Seattle to Kathmandu in June is currently the most expensive (average of $1,960). 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 SEA to KTM?

Find hourly flight availability from Seattle to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 14, 2025.

One of the essential ways to save on airfare from Seattle to Kathmandu is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 18% on airfare.

What is the cheapest day to fly from Seattle to Kathmandu?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Kathmandu. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Seattle to Kathmandu flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

Temperature in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kathmandu, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. 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 Kathmandu. Reviews last updated April 14, 2025.
See what other customers who have flown with EVA Air, Singapore Airlines and Emirates from Seattle to Kathmandu have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,176 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,176 reviews
EVA Air
8.4
Very good
1,176 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Singapore Airlines
8.1
Very good
1,288 reviews
EVA Air
8.4
Very good
1,176 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Emirates
8.0
Very good
3,195 reviews
EVA Air
8.4
Very good
1,176 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Cathay Pacific
7.5
Good
846 reviews
EVA Air
8.4
Very good
1,176 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Qatar Airways
7.4
Good
3,550 reviews
EVA Air
8.4
Very good
1,176 reviews

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Kathmandu. 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 Seattle to Kathmandu round-trip?

    Cathay Pacific, at $1,156, was found to be the cheapest airline from Seattle to Kathmandu.Alternate airlines to your destination round-trip include Singapore Airlines and Turkish Airlines. Cathay Pacific is 19% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle to Kathmandu one-way?

    $564 is the cheapest one-way deal found within the past few days, from Qatar Airways. You may also be able to find cheap deals on Singapore Airlines and EVA Air, with prices starting from $998 and $1,140, respectively.

  • Where are the most common layover locations when flying from Seattle to Kathmandu?

    Flights departing from Seattle and landing in Kathmandu layover in Doha most frequently. Singapore is the second most popular location for layovers on flights from Seattle to Kathmandu.

  • What are some popular things to do or see while on a layover in Doha?

    Doha travelers tend to visit Museum of Islamic Art, Katara Cultural Village, and Aspire Tower more than anywhere else. Travelers on a layover in Doha can visit Museum of Islamic Art, Katara Cultural Village, and Aspire Tower, by traveling 5.2 mi, 8.7 mi, and 10.6 mi, respectively after landing at Doha Hamad Intl. Those landing in Doha looking to spend some time exploring during their layover can rent a car for about $28 per day.

  • What are some popular points of interest to see during a layover in Singapore?

    Sentosa, Universal Studios Singapore, and Boat Quay are the most popular attractions in Singapore if you're in need of something to do during your layover. Sentosa, Universal Studios Singapore, and Boat Quay can be accessed by traveling approximately 13.4 mi, 13.4 mi, and 10.8 mi, respectively from Singapore Changi. Those on a layover in Singapore in need of a rental car can book one at Singapore Changi for about $86.

  • Where are the least popular layover locations for Seattle to Kathmandu flights?

    Seattle to Kathmandu flights have a layover in Istanbul least often.

  • Can I find deals for flights from Seattle to Kathmandu that include hotel bookings?

    Yes. In addition to deals on Seattle to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Kathmandu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kathmandu.

  • Can I find deals for business class flights from Seattle to Kathmandu?

    Yes. Cheapflights offers flight deals from Seattle to Kathmandu 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 Seattle to Kathmandu?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Kathmandu (average of $1,237). Flying from Seattle to Kathmandu in June is currently the most expensive (average of $1,960). 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.

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Alternative routes for Seattle to Kathmandu

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Portland to Kathmandu flights
Spokane to Kathmandu flights
Pullman to Kathmandu flights

Top 5 airlines flying from Seattle to Kathmandu

Discover the top 5 airlines that operate flights from Seattle to Kathmandu. 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 April 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$889Average$1,174FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,116Average$1,378FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,140Average$1,581FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,172Average$1,437FlexibilityNo cancel feeOn-time72%
EmiratesCheapest$1,688Average$2,160FlexibilityNo cancel feeOn-time75%

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