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Cheap flights from Seattle to Kathmandu from $531

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 7/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Kathmandu

Cheap round-trip flights

Logo
7:10 pm - 3:40 pmSEA-KTM
31h 45m2 stops
Logo
2:00 pm - 5:15 pmKTM-SEA
40h 00m2 stops
$979
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jue., ago. 28 - mar., sep. 23
Logo
10:15 am - 9:45 pmSEA-KTM
22h 45m1 stop
Logo
11:45 am - 12:31 amKTM-SEA
49h 31m2 stops
$1,085
Find Deal
vie., ago. 22 - vie., ago. 29
Singapore Airlines Logo
5:40 pm - 9:50 pmSEA-KTM
38h 25m2 stops
Singapore Airlines Logo
11:00 pm - 1:52 pmKTM-SEA
28h 37m2 stops
$1,133Singapore Airlines
Find Deal
mar., dic. 2 - mar., ene. 20
Singapore Airlines Logo
8:45 am - 9:50 pmSEA-KTM
23h 20m1 stop
Singapore Airlines Logo
11:00 pm - 1:52 pmKTM-SEA
28h 37m2 stops
$1,136Singapore Airlines
Find Deal
mar., dic. 2 - mar., ene. 20
Emirates Logo
5:15 pm - 2:35 pmSEA-KTM
32h 35m1 stop
Emirates Logo
3:35 pm - 1:25 pmKTM-SEA
34h 35m1 stop
$1,138Emirates
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lun., sep. 22 - jue., oct. 2
Singapore Airlines Logo
8:45 am - 9:50 pmSEA-KTM
23h 20m1 stop
Singapore Airlines Logo
11:00 pm - 7:10 amKTM-SEA
45h 55m1 stop
$1,144Singapore Airlines
Find Deal
mar., dic. 2 - mar., ene. 20
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
$1,160Turkish Airlines
Find Deal
mar., dic. 30 - 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
$1,170Turkish Airlines
Find Deal
mar., dic. 30 - mar., feb. 3
Logo
10:15 am - 9:45 pmSEA-KTM
22h 45m1 stop
Logo
11:30 pm - 7:15 pmKTM-SEA
56h 30m2 stops
$1,176
Find Deal
vie., ago. 22 - vie., ago. 29
Emirates Logo
5:15 pm - 8:00 amSEA-KTM
26h 00m1 stop
Emirates Logo
9:00 am - 1:25 pmKTM-SEA
41h 10m1 stop
$1,188Emirates
Find Deal
jue., ago. 28 - mar., sep. 23

Singapore Airlines flights from Seattle to Kathmandu

Our best Singapore Airlines deals on Seattle to Kathmandu flight tickets
Singapore Airlines
Dec 2
SEA5:40 pmSeattle/Tacoma Intl
38h 25m
2 stops
KTM9:50 pmKathmandu Tribhuvan
Jan 20
KTM11:00 pmKathmandu Tribhuvan
28h 37m
2 stops
SEA1:52 pmSeattle/Tacoma Intl
$1,133
Find similar
Singapore Airlines
Dec 2
SEA8:45 amSeattle/Tacoma Intl
23h 20m
1 stop
KTM9:50 pmKathmandu Tribhuvan
Jan 20
KTM11:00 pmKathmandu Tribhuvan
28h 37m
2 stops
SEA1:52 pmSeattle/Tacoma Intl
$1,136
Find similar
Singapore Airlines
Dec 2
SEA8:45 amSeattle/Tacoma Intl
23h 20m
1 stop
KTM9:50 pmKathmandu Tribhuvan
Jan 20
KTM11:00 pmKathmandu Tribhuvan
45h 55m
1 stop
SEA7:10 amSeattle/Tacoma Intl
$1,144
Find similar

Emirates flights from Seattle to Kathmandu

Our best Emirates deals on Seattle to Kathmandu flight tickets
Emirates
Sep 22
SEA5:15 pmSeattle/Tacoma Intl
32h 35m
1 stop
KTM2:35 pmKathmandu Tribhuvan
Oct 2
KTM3:35 pmKathmandu Tribhuvan
34h 35m
1 stop
SEA1:25 pmSeattle/Tacoma Intl
$1,138
Find similar
Emirates
Aug 28
SEA5:15 pmSeattle/Tacoma Intl
26h 00m
1 stop
KTM8:00 amKathmandu Tribhuvan
Sep 23
KTM9:00 amKathmandu Tribhuvan
41h 10m
1 stop
SEA1:25 pmSeattle/Tacoma Intl
$1,188
Find similar
Emirates
Dec 29
SEA4:05 pmSeattle/Tacoma Intl
40h 50m
1 stop
KTM10:40 pmKathmandu Tribhuvan
Feb 1
KTM3:00 pmKathmandu Tribhuvan
35h 20m
1 stop
SEA12:35 pmSeattle/Tacoma Intl
$1,301
Find similar

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 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 $1,184.

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 Seattle. 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 Seattle to Kathmandu on a Monday will generally be more expensive and average around $1,806. 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 Seattle to Kathmandu when you can find flight prices for as low as $1,258. Flying to Kathmandu in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $1,520.

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 $1,363 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 $1,157 on momondo.

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

There are 1 cabin classes 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 July 2025, prices for Seattle to Kathmandu flights are approximately 44% 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

Best Price Found

$531

Fastest flight time

22h 20m

Direct flights

None

Airports in Kathmandu

1 airport
The best one-way flight to Kathmandu from Seattle in the past 72 hours is $531. The best round-trip flight deal from Seattle to Kathmandu found on momondo in the last 72 hours is $979.
The fastest flight from Seattle to Kathmandu takes 22h 20m
There are no direct flights from Seattle to Kathmandu. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Kathmandu Tribhuvan Airport.
There is 1 airport near Kathmandu: Kathmandu Tribhuvan (KTM)
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  • 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 35m.

  • 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?

  • 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?

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 AirlinesPriceFrom $905Free CancellationRating
8.1
1,324 reviews
Search Singapore Airlines flights
Turkish AirlinesPriceFrom $1,098Free CancellationRating
7.3
3,896 reviews
Search Turkish Airlines flights
EmiratesPriceFrom $1,138Free CancellationRating
8.1
3,285 reviews
Search Emirates flights
Qatar AirwaysPriceFrom $1,158Free CancellationRating
7.4
3,596 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,172Free CancellationRating
7.6
929 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 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

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mar. 7/15
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