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Kathmandu

$483+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KTM
fev 25 — mar 41
ter 2/25
ter 3/4
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Kathmandu Tribhuvan are usually found in January or May, booked 90 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 fevereiro 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,093
(Gurufare)

One-way from

$483
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,273
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. 17% potential increase in price ($307 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in February 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 fevereiro 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/19. 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.
ter 10/289:45 amSEA - KTM
1 stop23h 10mSingapore Airlines
ter 11/1111:00 pmKTM - SEA
2 stops38h 40mSingapore Airlines
Deal found 2/19$1,078
This Singapore Airlines deal was found by Cheapflights users on 2/20. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/15:59 pmSEA - KTM
2 stops38h 56mMultiple Airlines
qua 10/1511:10 pmKTM - SEA
1 stop22h 20mMultiple Airlines
Deal found 2/20$1,080
This FlightHub deal was found by Cheapflights users on 2/20. 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.
qua 5/77:10 pmSEA - KTM
1 stop22h 05mTurkish Airlines
qui 5/227:25 amKTM - SEA
1 stop22h 35mTurkish Airlines
Deal found 2/20$1,144
This oojo deal was found by Cheapflights users on 2/20. 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.
ter 5/136:59 pmSEA - KTM
2 stops38h 26mCathay Pacific
seg 6/211:20 pmKTM - SEA
2 stops35h 25mCathay Pacific
Deal found 2/20$1,154

Find flights from Seattle to Kathmandu within your budget

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 fevereiro 20, 2025.

Fly from

Seattle

Fly to

Kathmandu

Route

Depart

Return

Price

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

ter 4/15

10:15 am-9:45 pm

1 stop22h 45m

Kathmandu Tribhuvan

dom 6/1

11:00 pm-10:54 pm

2 stops36h 39m

$1,093

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

qua 5/7

7:10 pm-6:00 am

1 stop22h 05m

Kathmandu Tribhuvan

qui 5/22

7:25 am-5:15 pm

1 stop22h 35m

$1,144

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

ter 5/13

6:59 pm-10:10 pm

2 stops38h 26m

Kathmandu Tribhuvan

seg 6/2

11:20 pm-10:00 pm

2 stops35h 25m

$1,154

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

seg 3/24

12:00 pm-7:00 pm

2 stops42h 15m

Kathmandu Tribhuvan

qua 5/14

11:10 am-10:40 am

2 stops36h 15m

$1,230

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

sáb 3/15

9:34 pm-7:45 pm

2 stops57h 26m

$483

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

sáb 4/5

1:40 pm-10:10 pm

2 stops43h 45m

$668

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

sáb 3/1

7:00 pm-11:00 am

1 stop26h 15m

$800

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

seg 3/3

4:05 pm-4:45 pm

1 stop34h 55m

$827

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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.

Travel insights for flights from Seattle to Kathmandu

Get recent, data-driven insights about flights from Seattle to Kathmandu including ideal travel times, pricing trends, and more.

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 February 14, 2025.

Booking 90 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 $1,997). 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 fevereiro 20, 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 February 16, 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 fevereiro 20, 2025.
See what other customers who have flown with Singapore Airlines, Cathay Pacific and Qatar Airways from Seattle to Kathmandu have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,301 reviews

Overall

8.1

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

8.0

Food

7.7

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Singapore Airlines
8.1
Very good
1,301 reviews
Singapore Airlines
8.1
Very good
1,301 reviews

Overall

8.1

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

8.0

Food

7.7

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Cathay Pacific
7.5
Good
821 reviews
Singapore Airlines
8.1
Very good
1,301 reviews

Overall

8.1

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

8.0

Food

7.7

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Qatar Airways
7.4
Good
3,612 reviews
Singapore Airlines
8.1
Very good
1,301 reviews

Overall

8.1

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

8.0

Food

7.7

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Turkish Airlines
7.3
Good
3,835 reviews
Singapore Airlines
8.1
Very good
1,301 reviews

Overall

8.1

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

8.0

Food

7.7

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

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?

    Singapore Airlines, at $1,093, was found to be the cheapest airline from Seattle to Kathmandu.Alternate airlines to your destination round-trip include Turkish Airlines and Cathay Pacific. Singapore Airlines is 25% 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?

    $668 is the cheapest one-way deal found within the past few days, from Cathay Pacific. You may also be able to find cheap deals on Turkish Airlines and Qatar Airways, with prices starting from $800 and $827, 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 $30 per day.

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

    Sentosa, Universal Studios Singapore, and Geylang Serai New Market are the most popular attractions in Singapore if you're in need of something to do during your layover. Sentosa, Universal Studios Singapore, and Geylang Serai New Market can be accessed by traveling approximately 13.4 mi, 13.4 mi, and 6.9 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 $103.

  • 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 $1,997). 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

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Kathmandu flights
Pullman to Kathmandu flights
Spokane 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 fevereiro 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$889Average$1,198FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,120Average$1,426FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,128Average$1,589FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,172Average$1,513FlexibilityNo cancel feeOn-time72%
EmiratesCheapest$1,688Average$2,160FlexibilityNo cancel feeOn-time75%
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