How long is the flight from Seattle to Kathmandu?

Airlines like Qatar Airways and Turkish Airlines fly from Seattle to Kathmandu in about 26h 30m. The time it takes to get you to your destination can typically vary by up to 8h 20m. There are 11204 km between Seattle and Kathmandu. Both multi-stop and direct flights can be found to your destination and back.

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.

₹ 95,537+ 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 24 September 2026.

Fri 6/1115:50 -

1 stop35h 55m

Wed 3/317:40 -

1 stop31h 45m

Deal found 19/9₹ 115,831

Mon 26/1016:50 -

1 stop28h 15m

Sat 21/1109:35 -

1 stop39h 50m

Deal found 23/9₹ 116,406

Sun 25/1016:50 -

1 stop35h 55m

Sat 21/1109:35 -

1 stop39h 50m

Deal found 23/9₹ 116,597

Mon 26/1020:05 -

1 stop26h 30m

Sun 22/1112:45 -

1 stop42h 10m

Deal found 22/9₹ 118,224

Mon 2/1115:50 -

1 stop35h 55m

Fri 5/317:40 -

1 stop31h 45m

Deal found 19/9₹ 118,416

Fri 6/1115:50 -

1 stop35h 55m

Mon 1/318:45 -

2 stops54h 30m

Deal found 19/9₹ 119,182

Fri 6/1115:50 -

1 stop35h 55m

Sat 6/317:40 -

1 stop31h 45m

Deal found 19/9₹ 120,235

Fri 6/1115:50 -

1 stop35h 55m

Sat 21/1109:35 -

1 stop39h 50m

Deal found 24/9₹ 120,522

Sat 31/1020:05 -

1 stop26h 30m

Wed 25/1112:45 -

1 stop42h 10m

Deal found 21/9₹ 120,618

Mon 2/1115:50 -

1 stop35h 55m

Mon 1/318:45 -

2 stops54h 30m

Deal found 19/9₹ 121,766

Sat 31/1016:50 -

1 stop35h 55m

Tue 2/317:40 -

1 stop31h 45m

Deal found 19/9₹ 122,245

Sat 24/1009:59 -

2 stops42h 46m

Sat 21/1109:35 -

1 stop39h 50m

Deal found 23/9₹ 122,437

Find flight deals from Seattle to Kathmandu

Round-trip from	₹ 112,002
One-way from	₹ 95,537
Popular in	July
Cheapest in	February
Average price	₹ 109,226

Qatar Airways
10/1-19/2
2 total stops
65h 30m total
Seattle to Kathmandu

Search Deals

Qatar Airways
20/11-31/12
1 total stop
26h 45m total
Seattle to Kathmandu

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (₹ 1,350,878 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (₹ 228,927 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 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

Fri 20/11

15:50-08:20

1 stop26h 45m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 95,537

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Fri 30/10

15:44-17:30

2 stops61h 01m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 99,557

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Thu 5/11

06:00-21:30

2 stops49h 45m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 102,716

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Wed 4/11

06:00-21:30

2 stops49h 45m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 102,716

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Thu 18/2

15:50-16:25

1 stop34h 50m

Kathmandu Tribhuvan

Fri 12/3

18:45-11:40

1 stop30h 40m

₹ 112,002

Fastest return journey

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Thu 5/11

20:05-11:20

1 stop25h 30m

Kathmandu Tribhuvan

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 113,342

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Mon 15/2

15:50-16:25

1 stop34h 50m

Kathmandu Tribhuvan

Mon 8/3

18:45-09:09

2 stops52h 09m

₹ 115,353

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Sun 7/2

19:05-11:20

1 stop26h 30m

Kathmandu Tribhuvan

Thu 11/2

12:45-17:10

1 stop42h 10m

₹ 116,789

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Fri 19/2

16:45-16:25

2 stops57h 55m

Kathmandu Tribhuvan

Thu 11/3

17:40-11:40

1 stop31h 45m

₹ 118,990

SeattleKathmandu

SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan

SEAKTM

Seattle/Tacoma Intl

Tue 16/2

15:50-17:30

1 stop35h 55m

Kathmandu Tribhuvan

Sun 7/3

18:45-09:09

2 stops52h 09m

₹ 119,660

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Showing 1-10 of 16 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 80 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, February is the cheapest month in which you can book a flight from Seattle to Kathmandu (average of ₹ 100,228). Flying from Seattle to Kathmandu in July is currently the most expensive (average of ₹ 145,603). 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 typical for this route at the moment.

Seattle to Kathmandu flights typically cost between ₹ 99,222 and ₹ 145,411 in January.
The cheapest return price found within the last 5 days was ₹ 112,002 on Qatar Airways (10 Jan–19 Feb).

Related info for your journey

How long is the flight from Seattle to Kathmandu?
Airlines like Qatar Airways and Turkish Airlines fly from Seattle to Kathmandu in about 26h 30m. The time it takes to get you to your destination can typically vary by up to 8h 20m. There are 11204 km between Seattle and Kathmandu. Both multi-stop and direct flights can be found to your destination and back.
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, February is the cheapest month in which you can book a flight from Seattle to Kathmandu (average of ₹ 100,228). Flying from Seattle to Kathmandu in July is currently the most expensive (average of ₹ 145,603). 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

Nagarkot

Browse thousands of different options on Cheapflights for your next trip

Complete your trip

Direct flights to Nepal

Flights by cabin class

Kathmandu flight routes

Other flight options

Popular flights

Complete your trip

Kathmandu car hire

Kathmandu Tribhuvan Airport car hire

Fly with Cheapflights

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

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.

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.

Cheap flights from Seattle to Kathmandu from ₹ 95,537

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/11. 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 24 September 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 24 September 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 24 September 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 24 September 2026.

Last-minute flights from Seattle to KathmanduDiscover last-minute flight deals from Seattle to Kathmandu. Data last updated 24 September 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to Kathmandu. Data last updated 24 September 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 24 September 2026.

Search for one-way flight options from Seattle to Kathmandu. Find affordable one-way fares based on user searches. Data last updated 24 September 2026.

Find flight deals from Seattle to Kathmandu

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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 80 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 typical for this route at the moment.

Seattle to Kathmandu flights typically cost between ₹ 99,222 and ₹ 145,411 in January.The cheapest return price found within the last 5 days was ₹ 112,002 on Qatar Airways (10 Jan–19 Feb).

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?

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.

Complete your trip

Complete your trip to Kathmandu by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Nepal

Book a non-stop flight to one of these other cities located in Nepal.

Search flights from Seattle to Kathmandu by cabin class

Find flights from Seattle to Kathmandu, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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 24 September 2026.

Seattle and Kathmandu flights

Browse other Seattle and Kathmandu flight options. Last updated on 24 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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?

100% Free

Book With Flexibility

Travel Smart

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 24 September 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 24 September 2026.

Last-minute flights from Seattle to Kathmandu
Discover last-minute flight deals from Seattle to Kathmandu. Data last updated 24 September 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 24 September 2026.

Seattle to Kathmandu flights typically cost between ₹ 99,222 and ₹ 145,411 in January.
The cheapest return price found within the last 5 days was ₹ 112,002 on Qatar Airways (10 Jan–19 Feb).