What airlines fly to Kathmandu?

Singapore Airlines, Qatar Airways and Turkish Airlines are the top three most popular airlines that fly to Kathmandu from State of Washington according to our data. Singapore Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Kathmandu. Keep in mind that there are 6 different airlines that fly to Kathmandu on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Kathmandu?

If you’re flying from a popular airport in State of Washington, such as Seattle or Spokane, and flying into Kathmandu, then you can expect flight times to average 22h 20m and 35h 42m, respectively.

What is the cheapest airline that flies from Washington to Kathmandu Tribhuvan?

Singapore Airlines, Qatar Airways, and Turkish Airlines are the most popular carriers operating from Washington to Kathmandu Tribhuvan

When did momondo last update prices for flights from Washington to Kathmandu Tribhuvan Airport?

Prices for flights from Washington to Kathmandu Tribhuvan Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Kathmandu Tribhuvan Airport?

There are 6 operators available for flights from Washington to Kathmandu Tribhuvan Airport as of August 2025.

How old do you have to be to fly from Washington to Kathmandu Tribhuvan Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Kathmandu Tribhuvan Airport.

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

The required travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$444 Cheap Flights from Washington to Kathmandu in 2025

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Find the cheapest flights from Washington to Kathmandu

Round-trip

One-way

Last minute

Cheap round-trip flights

7:10 pm - 9:50 amSEA-KTM

25h 55m2 stops

4:40 pm - 5:15 pmKTM-SEA

37h 20m2 stops

$979

Find Deal

Wed, Sep 3 - Wed, Sep 10

7:10 pm - 1:00 pmSEA-KTM

29h 05m2 stops

4:40 pm - 10:35 amKTM-SEA

54h 40m2 stops

$992

Find Deal

Thu, Aug 14 - Thu, Sep 25

8:45 am - 9:50 pmSEA-KTM

23h 20m1 stop

11:00 pm - 7:10 amKTM-SEA

21h 55m1 stop

$1,020Singapore Airlines

Find Deal

Thu, Jan 1 - Fri, Jan 30

7:10 pm - 6:15 amSEA-KTM

22h 20m1 stop

7:40 am - 10:35 amKTM-SEA

39h 40m1 stop

$1,045Turkish Airlines

Find Deal

Sat, Aug 16 - Fri, Sep 12

7:00 pm - 11:10 amSEA-KTM

26h 25m1 stop

12:35 pm - 5:05 pmKTM-SEA

42h 15m1 stop

$1,048Turkish Airlines

Find Deal

Mon, Jan 12 - Sat, Jan 24

5:40 pm - 9:50 pmSEA-KTM

38h 25m2 stops

11:00 pm - 7:10 amKTM-SEA

21h 55m1 stop

$1,060Singapore Airlines

Find Deal

Mon, Jan 12 - Sat, Jan 24

2:36 pm - 10:15 amGEG-KTM

54h 54m2 stops

6:00 pm - 1:04 pmKTM-GEG

55h 49m2 stops

$1,181Qatar Airways

Find Deal

Sun, Sep 14 - Tue, Oct 14

11:59 pm - 8:05 pmSEA-KTM

31h 21m2 stops

6:30 am - 10:10 pmKTM-SEA

52h 25m2 stops

$1,198Air India

Find Deal

Thu, Sep 11 - Tue, Oct 7

11:59 pm - 8:05 pmSEA-KTM

31h 21m2 stops

10:05 am - 10:20 pmKTM-SEA

49h 00m2 stops

$1,291Air India

Find Deal

Tue, Sep 16 - Tue, Sep 23

10:30 am - 8:50 amPDX-KTM

33h 35m2 stops

6:45 pm - 8:50 pmKTM-PDX

39h 50m2 stops

$1,372Qatar Airways

Find Deal

Wed, Oct 15 - Tue, Nov 4

Air India flights from State of Washington to Kathmandu

Our best Air India deals on State of Washington to Kathmandu flight tickets

Air India

Sep 11

SEA11:59 pmSeattle/Tacoma Intl

31h 21m

2 stops

KTM8:05 pmKathmandu Tribhuvan

Oct 7

KTM6:30 amKathmandu Tribhuvan

52h 25m

2 stops

SEA10:10 pmSeattle/Tacoma Intl

$1,198

Find similar

Air India

Sep 16

SEA11:59 pmSeattle/Tacoma Intl

31h 21m

2 stops

KTM8:05 pmKathmandu Tribhuvan

Sep 23

KTM10:05 amKathmandu Tribhuvan

49h 00m

2 stops

SEA10:20 pmSeattle/Tacoma Intl

$1,291

Find similar

Air India

Sep 23

SEA11:59 pmSeattle/Tacoma Intl

41h 51m

2 stops

KTM6:35 amKathmandu Tribhuvan

Oct 9

KTM7:35 amKathmandu Tribhuvan

51h 20m

2 stops

SEA10:10 pmSeattle/Tacoma Intl

$1,328

Find similar

Cathay Pacific flights from State of Washington to Kathmandu

Our best Cathay Pacific deals on State of Washington to Kathmandu flight tickets

Cathay Pacific

Nov 20

SEA6:05 amSeattle/Tacoma Intl

50h 10m

2 stops

KTM10:00 pmKathmandu Tribhuvan

Dec 6

KTM11:15 pmKathmandu Tribhuvan

37h 01m

2 stops

SEA10:31 pmSeattle/Tacoma Intl

$1,394

Find similar

Cathay Pacific

Aug 18

SEA11:44 amSeattle/Tacoma Intl

45h 16m

2 stops

KTM9:45 pmKathmandu Tribhuvan

Sep 1

KTM11:00 pmKathmandu Tribhuvan

30h 39m

2 stops

SEA4:54 pmSeattle/Tacoma Intl

$1,398

Find similar

Cathay Pacific

Aug 5

SEA7:55 pmSeattle/Tacoma Intl

37h 05m

2 stops

KTM9:45 pmKathmandu Tribhuvan

Sep 29

KTM11:00 pmKathmandu Tribhuvan

35h 21m

2 stops

SEA9:36 pmSeattle/Tacoma Intl

$1,404

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Wed 9/3

7:10 pm-9:50 am

2 stops25h 55m

Kathmandu Tribhuvan

Wed 9/10

4:40 pm-5:15 pm

2 stops37h 20m

$979

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 8/14

7:10 pm-1:00 pm

2 stops29h 05m

Kathmandu Tribhuvan

Thu 9/25

4:40 pm-10:35 am

2 stops54h 40m

$992

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Thu 1/1

8:45 am-9:50 pm

1 stop23h 20m

Kathmandu Tribhuvan

Fri 1/30

11:00 pm-7:10 am

1 stop21h 55m

$1,020

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Sat 8/16

7:10 pm-6:15 am

1 stop22h 20m

Kathmandu Tribhuvan

Fri 9/12

7:40 am-10:35 am

1 stop39h 40m

$1,045

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Mon 1/12

7:00 pm-11:10 am

1 stop26h 25m

Kathmandu Tribhuvan

Sat 1/24

12:35 pm-5:05 pm

1 stop42h 15m

$1,048

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Mon 1/12

5:40 pm-9:50 pm

2 stops38h 25m

Kathmandu Tribhuvan

Sat 1/24

11:00 pm-7:10 am

1 stop21h 55m

$1,060

SpokaneKathmandu

GEG - KTM

GEGKTM

Spokane

Sun 9/14

2:36 pm-10:15 am

2 stops54h 54m

Kathmandu Tribhuvan

Tue 10/14

6:00 pm-1:04 pm

2 stops55h 49m

$1,181

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-10:10 pm

2 stops52h 25m

$1,198

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

Tue 9/16

11:59 pm-8:05 pm

2 stops31h 21m

Kathmandu Tribhuvan

Tue 9/23

10:05 am-10:20 pm

2 stops49h 00m

$1,291

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 10/15

10:30 am-8:50 am

2 stops33h 35m

Kathmandu Tribhuvan

Tue 11/4

6:45 pm-8:50 pm

2 stops39h 50m

$1,372

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 State of Washington 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

Other information

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 State of Washington averaging around $1,186.

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

According to our data, Wednesday is the cheapest day to fly to Kathmandu from State of Washington. The lowest ticket price found for a Wednesday departure recently was $1,276. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from State of Washington to Kathmandu on a Sunday will generally be more expensive and average around $1,384. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

In the evening is the cheapest time of day to fly from State of Washington to Kathmandu when you can find flight prices for as low as $1,254. Flying to Kathmandu in the evening 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 $1,316.

What is the cheapest Washington to Kathmandu Tribhuvan flight route?

Fly from Seattle/Tacoma Intl to Kathmandu Tribhuvan for the best Washington - 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 State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,354 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from State of Washington for as low as $1,124 on momondo.

What cabin class options are available on Washington to Kathmandu Tribhuvan flights?

There are 1 cabin classes available to choose from on Washington to Kathmandu Tribhuvan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Kathmandu flights?

You could potentially save up to 7% on your flight if you consider stops on a State of Washington to Kathmandu flight.

Cheap State of Washington to Kathmandu flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Kathmandu

Best Price Found	$444
Fastest flight time	22h 20m
Direct flights	None
Airports in Kathmandu	1 airport

The best one-way flight to Kathmandu from State of Washington in the past 72 hours is $444. The best round-trip flight deal from State of Washington to Kathmandu found on momondo in the last 72 hours is $979.

The fastest flight from State of Washington to Kathmandu takes 22h 20m

There are no direct flights from State of Washington to Kathmandu. Popular non-direct routes for this connection are Portland Airport - Kathmandu Tribhuvan Airport, Spokane Airport - Kathmandu Tribhuvan Airport and Seattle/Tacoma Intl Airport - Kathmandu Tribhuvan Airport.

There is 1 airport near Kathmandu: Kathmandu Tribhuvan (KTM)

Search flight deals

When did momondo last update prices for flights from Washington to Kathmandu Tribhuvan Airport?
Prices for flights from Washington to Kathmandu Tribhuvan Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Kathmandu Tribhuvan Airport?
There are 6 operators available for flights from Washington to Kathmandu Tribhuvan Airport as of August 2025.
How old do you have to be to fly from Washington to Kathmandu Tribhuvan Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Kathmandu Tribhuvan Airport.
What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?
The required travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from State of Washington to Kathmandu

Compare and see reviews for airlines that fly from State of Washington to Kathmandu with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $911	Free Cancellation	Rating 8.1 1,339 reviews	Search Singapore Airlines flights
Turkish Airlines	PriceFrom $1,097	Free Cancellation	Rating 7.3 3,934 reviews	Search Turkish Airlines flights
Emirates	PriceFrom $1,138	Free Cancellation	Rating 8.1 3,302 reviews	Search Emirates flights
Qatar Airways	PriceFrom $1,161	Free Cancellation	Rating 7.4 3,608 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,179	Free Cancellation	Rating 7.6 951 reviews	Search Cathay Pacific flights

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Kathmandu. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Washington to Kathmandu on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Kathmandu.

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

Price alerts on flights to Kathmandu from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Kathmandu trip

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Cheap flights from Washington to Kathmandu from $444

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Kathmandu departing on 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Find the cheapest flights from Washington to Kathmandu

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Cheap last minute flights

Air India flights from State of Washington to Kathmandu

Our best Air India deals on State of Washington to Kathmandu flight tickets

Cathay Pacific flights from State of Washington to Kathmandu

Our best Cathay Pacific deals on State of Washington to Kathmandu flight tickets

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

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How to get the cheapest flight ticket from State of Washington 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 cheapest month to fly to Kathmandu?

The month of January is another great option to travel to Kathmandu, with average flight prices from State of Washington averaging around $1,186.

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

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

What is the cheapest Washington to Kathmandu Tribhuvan flight route?

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

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

What cabin class options are available on Washington to Kathmandu Tribhuvan flights?

There are 1 cabin classes available to choose from on Washington to Kathmandu Tribhuvan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Kathmandu flights?

You could potentially save up to 7% on your flight if you consider stops on a State of Washington to Kathmandu flight.

What is the cheapest airline that flies from Washington to Kathmandu Tribhuvan?

Singapore Airlines, Qatar Airways, and Turkish Airlines are the most popular carriers operating from Washington to Kathmandu Tribhuvan

What airlines fly to Kathmandu?

How long does it take to fly to Kathmandu?

If you’re flying from a popular airport in State of Washington, such as Seattle or Spokane, and flying into Kathmandu, then you can expect flight times to average 22h 20m and 35h 42m, respectively.

Cheap State of Washington to Kathmandu flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Kathmandu

Best Price Found

Fastest flight time

Direct flights

Airports in Kathmandu

When did momondo last update prices for flights from Washington to Kathmandu Tribhuvan Airport?

How many operators does momondo search for flights from Washington to Kathmandu Tribhuvan Airport?

How old do you have to be to fly from Washington to Kathmandu Tribhuvan Airport?

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

Best airlines flying from State of Washington to Kathmandu

Compare and see reviews for airlines that fly from State of Washington to Kathmandu with momondo

Traveling to a place near Kathmandu?

Why use momondo?

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

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

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

I’m not ready to book a flight from Washington 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