How long is the flight from Seattle to Kathmandu?

Airlines like Qatar Airways fly from Seattle to Kathmandu in about 55h 20m. The time it takes to get you to your destination can typically vary by up to . There are 11204 km between Seattle and Kathmandu.

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 370.0 inches per month. July is typically the wettest month, when rainfall can reach 370.0 mm. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 mm.

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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 10.0 C).

What is the cheapest time of day to fly from SEA to KTM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Kathmandu as you normally would.

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 holiday 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.

₹ 77,199+ Cheap Flights from Seattle to Kathmandu

Cheap flight deals from Seattle to Kathmandu

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 9 November 2026.

Wed 11/1115:50 -

1 stop33h 00m

Fri 20/1109:35 -

1 stop40h 25m

Deal found 8/11₹ 129,480

Thu 12/1110:07 -

2 stops41h 53m

Fri 20/1109:35 -

1 stop40h 25m

Deal found 8/11₹ 142,268

Mon 9/1115:50 -

1 stop34h 40m

Fri 20/1119:00 -

1 stop31h 00m

Deal found 8/11₹ 144,713

Mon 9/1115:50 -

1 stop34h 40m

Thu 19/1115:50 -

1 stop34h 10m

Deal found 8/11₹ 144,901

Fri 13/1115:50 -

1 stop34h 40m

Fri 20/1109:35 -

1 stop40h 25m

Deal found 8/11₹ 146,218

Tue 10/1108:03 -

2 stops42h 27m

Fri 20/1109:35 -

1 stop40h 25m

Deal found 8/11₹ 149,791

Sat 14/1110:07 -

2 stops40h 23m

Sat 21/1109:35 -

1 stop40h 25m

Deal found 8/11₹ 150,261

Sat 14/1107:10 -

2 stops41h 40m

Fri 20/1109:35 -

1 stop40h 25m

Deal found 8/11₹ 153,552

Find flight deals from Seattle to Kathmandu

Round-trip from	₹ 115,564
One-way from	₹ 77,199
Popular in	July
Cheapest in	September
Average price	₹ 128,728

Qatar Airways
22/2-2/3
2 total stops
66h 35m total
Seattle to Kathmandu

Search Deals

Singapore Airlines
29/4-31/12
1 total stop
22h 30m total
Seattle to Kathmandu

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (₹ 1,276,154 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (₹ 218,369 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Thu 29/4

10:15-21:30

1 stop22h 30m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 77,199

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Sat 24/4

10:15-21:30

1 stop22h 30m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 81,901

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Thu 31/12

19:05-11:20

1 stop26h 30m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 90,457

Fastest return journey

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Wed 28/4

19:20-06:05

1 stop22h 00m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 90,457

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Tue 5/1

19:05-11:20

1 stop26h 30m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 90,457

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Fri 1/1

19:05-11:20

1 stop26h 30m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 94,219

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Sun 21/3

21:40-16:15

2 stops53h 50m

Kathmandu Tribhuvan

Tue 6/4

10:05-12:55

1 stop39h 35m

₹ 118,855

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Sun 21/3

21:40-16:15

2 stops53h 50m

Kathmandu Tribhuvan

Wed 31/3

10:05-12:55

1 stop39h 35m

₹ 118,855

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Fri 19/3

16:45-16:15

2 stops58h 45m

Kathmandu Tribhuvan

Tue 6/4

10:05-12:55

1 stop39h 35m

₹ 122,616

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Sun 28/3

16:25-16:45

1 stop35h 35m

Kathmandu Tribhuvan

Sun 4/4

10:05-18:02

2 stops44h 42m

₹ 122,710

Flights are sorted by cheapest return flights first.

Deals found on 8/11

Showing 1-10 of 13 resultsSorted by cheapest first

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.

SEA-KTM

Estimated return 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?

Booking 68 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 ₹ 94,595). Flying from Seattle to Kathmandu in July is currently the most expensive (average of ₹ 143,021). 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.

How much does it cost for a return flight from Seattle to Kathmandu?

Airfare is below average for this route at the moment.

Seattle to Kathmandu flights typically cost between ₹ 118,008 and ₹ 149,697 in February.
The cheapest return price found within the last 5 days was ₹ 115,564 on Qatar Airways (24 Feb–4 Mar).

Related info for your journey

How long is the flight from Seattle to Kathmandu?
Airlines like Qatar Airways fly from Seattle to Kathmandu in about 55h 20m. The time it takes to get you to your destination can typically vary by up to . There are 11204 km between Seattle and Kathmandu.
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 holiday 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 ₹ 94,595). Flying from Seattle to Kathmandu in July is currently the most expensive (average of ₹ 143,021). 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

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Kathmandu. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Kathmandu?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Kathmandu from Seattle.

Can Cheapflights find flights from Seattle to Kathmandu with no change fees?

Need flexible booking options for your flight to Kathmandu from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Kathmandu become cheaper?

Not ready to book yet? You can track prices for flights from Seattle to Kathmandu on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Seattle to Kathmandu from ₹ 77,199

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Kathmandu

Cheapest flights from Seattle to KathmanduExplore 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 9 November 2026.

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 9 November 2026.

Best flights from Seattle to KathmanduDiscover carefully curated flight deals from Seattle to Kathmandu that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Discover carefully curated flight deals from Seattle to Kathmandu that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Last-minute flights from Seattle to KathmanduDiscover last-minute flight deals from Seattle to Kathmandu. Data last updated 9 November 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to Kathmandu. Data last updated 9 November 2026 and is based on user searches.

One-way flights from Seattle to KathmanduSearch for one-way flight options from Seattle to Kathmandu. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.

Search for one-way flight options from Seattle to Kathmandu. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.

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Use the filters below to find and compare flights from Seattle to Kathmandu that are best for you.

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.

Cheapflights Insights

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

Booking 68 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?

How much does it cost for a return flight from Seattle to Kathmandu?

Airfare is below average for this route at the moment.

Seattle to Kathmandu flights typically cost between ₹ 118,008 and ₹ 149,697 in February.The cheapest return price found within the last 5 days was ₹ 115,564 on Qatar Airways (24 Feb–4 Mar).

Related info for your journey

How long is the flight from Seattle to Kathmandu?

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

How can I find direct flights from Seattle to Kathmandu?

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

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

Travelling to a place near Kathmandu?

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Search flights from Seattle to Kathmandu by cabin class

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Other flights to Kathmandu

Explore flights to Kathmandu departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 November 2026.

Seattle and Kathmandu flights

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How does Cheapflights help users find flights from Seattle to Kathmandu?

Why should you use Cheapflights to find cheap flight tickets from Seattle to Kathmandu?

Can Cheapflights find flights from Seattle to Kathmandu with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to Kathmandu become cheaper?

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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 9 November 2026.

Best flights from Seattle to Kathmandu
Discover carefully curated flight deals from Seattle to Kathmandu that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Last-minute flights from Seattle to Kathmandu
Discover last-minute flight deals from Seattle to Kathmandu. Data last updated 9 November 2026 and is based on user searches.

One-way flights from Seattle to Kathmandu
Search for one-way flight options from Seattle to Kathmandu. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.

Seattle to Kathmandu flights typically cost between ₹ 118,008 and ₹ 149,697 in February.
The cheapest return price found within the last 5 days was ₹ 115,564 on Qatar Airways (24 Feb–4 Mar).