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Cheap flights from Washington to Kathmandu from $346

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 1/24. 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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0 bags

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Cheap round-trip flights

Singapore Airlines Logo
9:45 am - 9:40 pmSEA-KTM
23h 10m1 stop
Singapore Airlines Logo
11:00 pm - 8:45 amKTM-SEA
22h 30m1 stop
$874Singapore Airlines
Find Deal
mar., mar. 17 - mié., abr. 1
Singapore Airlines Logo
8:45 am - 9:40 pmSEA-KTM
23h 10m1 stop
Singapore Airlines Logo
11:00 pm - 8:45 amKTM-SEA
22h 30m1 stop
$904Singapore Airlines
Find Deal
mar., mar. 3 - vie., abr. 3
Turkish Airlines Logo
7:00 pm - 11:10 amSEA-KTM
26h 25m1 stop
Turkish Airlines Logo
7:30 am - 5:15 pmKTM-SEA
22h 30m1 stop
$1,018Turkish Airlines
Find Deal
mar., mar. 3 - vie., abr. 3
Multiple Airlines Logo
8:45 am - 9:50 pmSEA-KTM
23h 20m1 stop
Multiple Airlines Logo
11:00 pm - 4:55 pmKTM-SEA
31h 40m2 stops
$1,055Multiple Airlines
Find Deal
jue., ene. 1 - dom., feb. 1
Multiple Airlines Logo
8:45 am - 9:50 pmSEA-KTM
23h 20m1 stop
Multiple Airlines Logo
11:00 pm - 1:52 pmKTM-SEA
28h 37m2 stops
$1,056Multiple Airlines
Find Deal
jue., ene. 1 - dom., feb. 1
Turkish Airlines Logo
7:00 pm - 11:10 amSEA-KTM
26h 25m1 stop
Turkish Airlines Logo
12:35 pm - 5:05 pmKTM-SEA
42h 15m1 stop
$1,164Turkish Airlines
Find Deal
sáb., nov. 8 - sáb., nov. 22
Emirates Logo
5:15 pm - 11:20 pmSEA-KTM
41h 20m1 stop
Emirates Logo
9:00 am - 1:25 pmKTM-SEA
41h 10m1 stop
$1,211Emirates
Find Deal
mar., sep. 30 - jue., oct. 9
Emirates Logo
5:15 pm - 7:40 pmSEA-KTM
37h 40m1 stop
Emirates Logo
7:25 pm - 1:25 pmKTM-SEA
30h 45m1 stop
$1,261Emirates
Find Deal
jue., oct. 2 - vie., oct. 17
Qatar Airways Logo
10:40 am - 4:25 pmPDX-KTM
40h 00m2 stops
Qatar Airways Logo
6:45 pm - 4:50 pmKTM-PDX
35h 50m2 stops
$1,297Qatar Airways
Find Deal
lun., nov. 3 - lun., dic. 15
Qatar Airways Logo
7:00 am - 5:50 pmPDX-KTM
46h 05m2 stops
Qatar Airways Logo
11:30 am - 8:50 pmKTM-PDX
46h 05m2 stops
$1,307Qatar Airways
Find Deal
lun., oct. 13 - lun., oct. 20

Singapore Airlines flights from State of Washington to Kathmandu

Our best Singapore Airlines deals on State of Washington to Kathmandu flight tickets
Singapore Airlines
Mar 17
SEA9:45 amSeattle/Tacoma Intl
23h 10m
1 stop
KTM9:40 pmKathmandu Tribhuvan
Apr 1
KTM11:00 pmKathmandu Tribhuvan
22h 30m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$874
Find similar
Singapore Airlines
Mar 3
SEA8:45 amSeattle/Tacoma Intl
23h 10m
1 stop
KTM9:40 pmKathmandu Tribhuvan
Apr 3
KTM11:00 pmKathmandu Tribhuvan
22h 30m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$904
Find similar
Singapore Airlines
Jan 1
SEA8:45 amSeattle/Tacoma Intl
23h 20m
1 stop
KTM9:50 pmKathmandu Tribhuvan
Feb 1
KTM11:00 pmKathmandu Tribhuvan
45h 55m
1 stop
SEA7:10 amSeattle/Tacoma Intl
$920
Find similar

Qatar Airways flights from State of Washington to Kathmandu

Our best Qatar Airways deals on State of Washington to Kathmandu flight tickets
Qatar Airways
Nov 3
PDX10:40 amPortland
40h 00m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Dec 15
KTM6:45 pmKathmandu Tribhuvan
35h 50m
2 stops
PDX4:50 pmPortland
$1,297
Find similar
Qatar Airways
Oct 13
PDX7:00 amPortland
46h 05m
2 stops
KTM5:50 pmKathmandu Tribhuvan
Oct 20
KTM11:30 amKathmandu Tribhuvan
46h 05m
2 stops
PDX8:50 pmPortland
$1,307
Find similar
Qatar Airways
Nov 4
PDX10:40 amPortland
40h 00m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Nov 18
KTM6:45 pmKathmandu Tribhuvan
38h 14m
2 stops
PDX7:14 pmPortland
$1,315
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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, momondo users made 832,500 searches. Data last updated septiembre 18, 2025.
Use the filters below to find and compare flights from Washington to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

mar. 3/17

9:45 am-9:40 pm

1 stop23h 10m

Kathmandu Tribhuvan

mié. 4/1

11:00 pm-8:45 am

1 stop22h 30m

$874

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

mar. 3/3

8:45 am-9:40 pm

1 stop23h 10m

Kathmandu Tribhuvan

vie. 4/3

11:00 pm-8:45 am

1 stop22h 30m

$904

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

mar. 3/3

7:00 pm-11:10 am

1 stop26h 25m

Kathmandu Tribhuvan

vie. 4/3

7:30 am-5:15 pm

1 stop22h 30m

$1,018

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

jue. 1/1

8:45 am-9:50 pm

1 stop23h 20m

Kathmandu Tribhuvan

dom. 2/1

11:00 pm-4:55 pm

2 stops31h 40m

$1,055

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

jue. 1/1

8:45 am-9:50 pm

1 stop23h 20m

Kathmandu Tribhuvan

dom. 2/1

11:00 pm-1:52 pm

2 stops28h 37m

$1,056

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

sáb. 11/8

7:00 pm-11:10 am

1 stop26h 25m

Kathmandu Tribhuvan

sáb. 11/22

12:35 pm-5:05 pm

1 stop42h 15m

$1,164

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

mar. 9/30

5:15 pm-11:20 pm

1 stop41h 20m

Kathmandu Tribhuvan

jue. 10/9

9:00 am-1:25 pm

1 stop41h 10m

$1,211

SeattleKathmandu

SEA - KTM

SEAKTM

Seattle/Tacoma Intl

jue. 10/2

5:15 pm-7:40 pm

1 stop37h 40m

Kathmandu Tribhuvan

vie. 10/17

7:25 pm-1:25 pm

1 stop30h 45m

$1,261

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

lun. 11/3

10:40 am-4:25 pm

2 stops40h 00m

Kathmandu Tribhuvan

lun. 12/15

6:45 pm-4:50 pm

2 stops35h 50m

$1,297

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

lun. 10/13

7:00 am-5:50 pm

2 stops46h 05m

Kathmandu Tribhuvan

lun. 10/20

11:30 am-8:50 pm

2 stops46h 05m

$1,307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kathmandu from

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 $1,224.

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 $1,348 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 $1,117 on momondo.

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

There is only 1 cabin class 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

Direct flights

None
There are no direct flights from State of Washington to Kathmandu. There are no popular flight routes from State of Washington to Kathmandu.
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?

  • 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 AirlinesPriceFrom $910Free CancellationRating
8.1
1,369 reviews
Search Singapore Airlines flights
Turkish AirlinesPriceFrom $1,092Free CancellationRating
7.3
3,969 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,138Free CancellationRating
8.1
3,339 reviews
Search Emirates flights
Qatar AirwaysPriceFrom $1,153Free CancellationRating
7.4
3,624 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,172Free CancellationRating
7.6
998 reviews
Search Cathay Pacific flights

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

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.

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