Which layover airport has the shortest travel time from Seattle to Kathmandu?

Flights connecting via Dubai (DXB) have the shortest average one-way travel time: 25h 15m.

Which airport is the most popular layover for flights between Seattle and Kathmandu?

Istanbul (IST) was the most common stop: 35% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Kathmandu?

Flights via Singapore (SIN) offer the lowest average round-trip price of $1,256.

Which layover airport has the shortest connection time from Seattle to Kathmandu?

Dubai (DXB) has the shortest average layover time for this route: 6h 50m.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Kathmandu Tribhuvan?

Singapore Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Kathmandu Tribhuvan

What airlines fly to Kathmandu?

Singapore Airlines, Turkish Airlines and Qatar Airways are the top three most popular airlines that fly to Kathmandu from Seattle according to our data. Singapore Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Kathmandu. Keep in mind that there are 5 different airlines that fly to Kathmandu on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?

There are 5 operators available for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport as of August 2025.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport.

What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?

The travel and health documents you'll need for your trip to Kathmandu Tribhuvan Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$513 Cheap Flights from Seattle to Kathmandu (SEA-KTM) in 2025

Q: What is the typical price of a round-trip flight between Seattle and Kathmandu?

Prices are currently low for flights on this route. Typical prices usually range from $1,146 to $1,452. The lowest price recently found on this route was $863.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Kathmandu (SEA-KTM)

Round-trip

One-way

Last minute

Cheap round-trip flights

8:45 am - 9:50 pmSEA-KTM

23h 20m1 stop

11:00 pm - 7:10 amKTM-SEA

21h 55m1 stop

$863Singapore Airlines

Find Deal

Tue, Feb 10 - Mon, Feb 16

8:25 pm - 6:10 pmSEA-KTM

33h 00m2 stops

1:25 pm - 7:50 pmKTM-SEA

43h 10m2 stops

$932

Find Deal

Sat, Sep 13 - Fri, Sep 26

7:00 pm - 11:10 amSEA-KTM

26h 25m1 stop

12:35 pm - 5:05 pmKTM-SEA

42h 15m1 stop

$989Turkish Airlines

Find Deal

Mon, Jan 5 - Tue, Feb 10

8:45 am - 9:50 pmSEA-KTM

23h 20m1 stop

11:00 pm - 4:36 pmKTM-SEA

31h 21m3 stops

$1,032

Find Deal

Tue, Feb 10 - Mon, Feb 16

4:05 pm - 8:20 amSEA-KTM

26h 30m1 stop

3:00 pm - 12:35 pmKTM-SEA

35h 20m1 stop

$1,296Emirates

Find Deal

Mon, Jan 5 - Tue, Feb 10

1:05 pm - 11:10 amSEA-KTM

32h 20m2 stops

12:35 pm - 5:05 pmKTM-SEA

42h 15m1 stop

$1,339Turkish Airlines

Find Deal

Tue, Dec 2 - Sat, Dec 20

6:05 am - 10:00 pmSEA-KTM

50h 10m2 stops

11:15 pm - 6:20 pmKTM-SEA

32h 50m2 stops

$1,341Cathay Pacific

Find Deal

Thu, Nov 20 - Sat, Dec 6

6:25 am - 10:00 pmSEA-KTM

49h 50m2 stops

11:15 pm - 2:55 pmKTM-SEA

29h 25m2 stops

$1,358Cathay Pacific

Find Deal

Wed, Nov 19 - Wed, Nov 26

11:59 pm - 8:05 pmSEA-KTM

31h 21m2 stops

6:30 am - 10:36 pmKTM-SEA

52h 51m2 stops

$1,379Air India

Find Deal

Fri, Sep 12 - Fri, Oct 17

11:59 pm - 8:05 pmSEA-KTM

31h 21m2 stops

6:30 am - 10:21 pmKTM-SEA

52h 36m2 stops

$1,399Air India

Find Deal

Thu, Sep 11 - Tue, Oct 7

Turkish Airlines flights from Seattle to Kathmandu

Our best Turkish Airlines deals on Seattle to Kathmandu flight tickets

Turkish Airlines

Jan 5

SEA7:00 pmSeattle/Tacoma Intl

26h 25m

1 stop

KTM11:10 amKathmandu Tribhuvan

Feb 10

KTM12:35 pmKathmandu Tribhuvan

42h 15m

1 stop

SEA5:05 pmSeattle/Tacoma Intl

$989

Find similar

Turkish Airlines

Dec 2

SEA1:05 pmSeattle/Tacoma Intl

32h 20m

2 stops

KTM11:10 amKathmandu Tribhuvan

Dec 20

KTM12:35 pmKathmandu Tribhuvan

42h 15m

1 stop

SEA5:05 pmSeattle/Tacoma Intl

$1,339

Find similar

Turkish Airlines

Sep 13

SEA7:10 pmSeattle/Tacoma Intl

22h 20m

1 stop

KTM6:15 amKathmandu Tribhuvan

Sep 26

KTM7:40 amKathmandu Tribhuvan

39h 40m

1 stop

SEA10:35 amSeattle/Tacoma Intl

$1,361

Find similar

Cathay Pacific flights from Seattle to Kathmandu

Our best Cathay Pacific deals on Seattle to Kathmandu flight tickets

Cathay Pacific

Sep 3

SEA3:23 pmSeattle/Tacoma Intl

41h 37m

2 stops

KTM9:45 pmKathmandu Tribhuvan

Sep 18

KTM11:00 pmKathmandu Tribhuvan

35h 43m

2 stops

SEA9:58 pmSeattle/Tacoma Intl

$1,245

Find similar

Cathay Pacific

Nov 20

SEA6:05 amSeattle/Tacoma Intl

50h 10m

2 stops

KTM10:00 pmKathmandu Tribhuvan

Dec 6

KTM11:15 pmKathmandu Tribhuvan

32h 50m

2 stops

SEA6:20 pmSeattle/Tacoma Intl

$1,341

Find similar

Cathay Pacific

Nov 19

SEA6:25 amSeattle/Tacoma Intl

49h 50m

2 stops

KTM10:00 pmKathmandu Tribhuvan

Nov 26

KTM11:15 pmKathmandu Tribhuvan

29h 25m

2 stops

SEA2:55 pmSeattle/Tacoma Intl

$1,358

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 2/10

8:45 am-9:50 pm

1 stop23h 20m

Kathmandu Tribhuvan

Mon 2/16

11:00 pm-7:10 am

1 stop21h 55m

$863

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Sat 9/13

8:25 pm-6:10 pm

2 stops33h 00m

Kathmandu Tribhuvan

Fri 9/26

1:25 pm-7:50 pm

2 stops43h 10m

$932

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Mon 1/5

7:00 pm-11:10 am

1 stop26h 25m

Kathmandu Tribhuvan

Tue 2/10

12:35 pm-5:05 pm

1 stop42h 15m

$989

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 2/10

8:45 am-9:50 pm

1 stop23h 20m

Kathmandu Tribhuvan

Mon 2/16

11:00 pm-4:36 pm

3 stops31h 21m

$1,032

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Mon 1/5

4:05 pm-8:20 am

1 stop26h 30m

Kathmandu Tribhuvan

Tue 2/10

3:00 pm-12:35 pm

1 stop35h 20m

$1,296

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 12/2

1:05 pm-11:10 am

2 stops32h 20m

Kathmandu Tribhuvan

Sat 12/20

12:35 pm-5:05 pm

1 stop42h 15m

$1,339

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 11/20

6:05 am-10:00 pm

2 stops50h 10m

Kathmandu Tribhuvan

Sat 12/6

11:15 pm-6:20 pm

2 stops32h 50m

$1,341

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Wed 11/19

6:25 am-10:00 pm

2 stops49h 50m

Kathmandu Tribhuvan

Wed 11/26

11:15 pm-2:55 pm

2 stops29h 25m

$1,358

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Fri 9/12

11:59 pm-8:05 pm

2 stops31h 21m

Kathmandu Tribhuvan

Fri 10/17

6:30 am-10:36 pm

2 stops52h 51m

$1,379

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 9/11

11:59 pm-8:05 pm

2 stops31h 21m

Kathmandu Tribhuvan

Tue 10/7

6:30 am-10:21 pm

2 stops52h 36m

$1,399

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Kathmandu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Seattle and Kathmandu?

What is the cheapest month to fly to Kathmandu?

The month of January is another great option to travel to Kathmandu, with average flight prices from Seattle averaging around $1,221.

What is the cheapest time of day to depart on your flight to Kathmandu?

At noon is the cheapest time of day to fly from Seattle to Kathmandu when you can find flight prices for as low as $1,260. Flying to Kathmandu at noon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $1,367.

What is the cheapest Seattle/Tacoma Intl to Kathmandu Tribhuvan flight route?

Fly from Seattle/Tacoma Intl to Kathmandu Tribhuvan for the best Seattle/Tacoma Intl - Kathmandu Tribhuvan flight prices

How far in advance should I book a flight to Kathmandu?

You are more likely to see cheaper flights to Kathmandu from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from Seattle for as low as $1,115 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Kathmandu Tribhuvan flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Kathmandu Tribhuvan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to Kathmandu flight prices changed over time?

As of August 2025, prices for Seattle to Kathmandu flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Kathmandu

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Kathmandu according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Kathmandu (SEA to KTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Kathmandu

Direct flights	None

There are no direct flights from Seattle to Kathmandu. There are no popular flight routes from Seattle to Kathmandu.

Search flight deals

How far is Seattle/Tacoma Intl to Kathmandu Tribhuvan by plane?
A flight from Seattle/Tacoma Intl to Kathmandu Tribhuvan will travel around 6950.3 mi. In terms of flight time, this usually takes a little over 22h 20m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?
There are 5 operators available for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport as of August 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport.
What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?
The travel and health documents you'll need for your trip to Kathmandu Tribhuvan Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Kathmandu?
momondo data reveals that the most frequently booked airline on the route from Seattle to Kathmandu is Singapore Airlines, representing 43% of all bookings. The subsequent popular airlines are Turkish Airlines at 28%, Qatar Airways at 23%, and Cathay Pacific at 4%.

Best airlines flying from Seattle to Kathmandu

Compare and see reviews for airlines that fly from Seattle to Kathmandu with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $910	Free Cancellation	Rating 8.1 1,352 reviews	Search Singapore Airlines flights
Turkish Airlines	PriceFrom $1,096	Free Cancellation	Rating 7.3 3,955 reviews	Search Turkish Airlines flights
Qatar Airways	PriceFrom $1,134	Free Cancellation	Rating 7.4 3,608 reviews	Search Qatar Airways flights
Emirates	PriceFrom $1,138	Free Cancellation	Rating 8.1 3,318 reviews	Search Emirates flights
Cathay Pacific	PriceFrom $1,179	Free Cancellation	Rating 7.6 975 reviews	Search Cathay Pacific flights

Nagarkot

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Kathmandu?

It is quick and easy to find Seattle to Kathmandu flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Kathmandu that suits you.

Can I find flights from Seattle to Kathmandu with flexible booking policies on momondo?

momondo does allow users to show only those flights to Kathmandu from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Kathmandu?

momondo provides multiple filters to help you find the best flight to Kathmandu from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Kathmandu right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Kathmandu, momondo offers a useful price alert feature which will track prices for flights to Kathmandu from Seattle and alert you when they change.

An easier way to manage your Kathmandu trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sun 8/31

Sun 9/7

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Nepal

Fly your favorite airline to Kathmandu

Cheap flights from Seattle to Kathmandu from $513

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Kathmandu departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to Kathmandu (SEA-KTM)

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Turkish Airlines flights from Seattle to Kathmandu

Our best Turkish Airlines deals on Seattle to Kathmandu flight tickets

Cathay Pacific flights from Seattle to Kathmandu

Our best Cathay Pacific deals on Seattle to Kathmandu flight tickets

momondo Fare Finder

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

See travel insights to Kathmandu from

How to get the cheapest flight ticket from Seattle to Kathmandu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Kathmandu?

What is the cheapest month to fly to Kathmandu?

The month of January is another great option to travel to Kathmandu, with average flight prices from Seattle averaging around $1,221.

What is the cheapest time of day to depart on your flight to Kathmandu?

What is the cheapest Seattle/Tacoma Intl to Kathmandu Tribhuvan flight route?

Fly from Seattle/Tacoma Intl to Kathmandu Tribhuvan for the best Seattle/Tacoma Intl - Kathmandu Tribhuvan flight prices

How far in advance should I book a flight to Kathmandu?

What cabin class options are available on Seattle/Tacoma Intl to Kathmandu Tribhuvan flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Kathmandu Tribhuvan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to Kathmandu flight prices changed over time?

As of August 2025, prices for Seattle to Kathmandu flights are approximately 8% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Kathmandu Tribhuvan?

Singapore Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Kathmandu Tribhuvan

What airlines fly to Kathmandu?

Which airport is the most popular layover for flights between Seattle and Kathmandu?

Istanbul (IST) was the most common stop: 35% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Kathmandu?

Flights via Singapore (SIN) offer the lowest average round-trip price of $1,256.

Which layover airport has the shortest travel time from Seattle to Kathmandu?

Flights connecting via Dubai (DXB) have the shortest average one-way travel time: 25h 15m.

Which layover airport has the shortest connection time from Seattle to Kathmandu?

Dubai (DXB) has the shortest average layover time for this route: 6h 50m.

When to book flights from Seattle to Kathmandu

Cheap Seattle to Kathmandu (SEA to KTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Kathmandu

Direct flights

How far is Seattle/Tacoma Intl to Kathmandu Tribhuvan by plane?

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Kathmandu Tribhuvan Airport?

What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?

What is the most popular airline from Seattle to Kathmandu?

Best airlines flying from Seattle to Kathmandu

Compare and see reviews for airlines that fly from Seattle to Kathmandu with momondo

Traveling to a place near Kathmandu?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Kathmandu?

Can I find flights from Seattle to Kathmandu with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Kathmandu?

I’m not ready to book a flight from Seattle to Kathmandu right now. Can momondo alert me if prices change?

An easier way to manage your Kathmandu trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Nepal

Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo