KTM - SEA

$651 Find Cheap Flights from Kathmandu to Seattle - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kathmandu to Seattle departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,206
Korean Air
Sat 10/17Sun 4/11
KTM - SEA • 1 stop
Cheapest one-way
$651
Typical prices: $770-$1,061
Multiple Airlines
Mon 11/23
KTM - SEA • 2 stops
Top airlines
Cheapest • from $1,170 (round-trip)
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Kathmandu and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,355 (round-trip)
Shortest trip • 22h 08m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Kathmandu to Seattle (KTM-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kathmandu to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kathmandu to Seattle

Sat, Oct 17 - Sun, Apr 11
Korean Air Logo
7:20 pm - 10:40 am
KTM
-
SEA
28h 05m
1 stop
Korean Air Logo
12:50 pm - 5:15 pm
SEA
-
KTM
39h 40m
1 stop
$1,206Korean Air
Tue, Oct 13 - Thu, Oct 29
Korean Air Logo
7:20 pm - 10:40 am
KTM
-
SEA
28h 05m
1 stop
Korean Air Logo
12:00 pm - 5:45 pm
SEA
-
KTM
41h 00m
1 stop
$1,210Korean Air
Sat, Oct 10 - Thu, Oct 29
Korean Air Logo
7:20 pm - 10:40 am
KTM
-
SEA
28h 05m
1 stop
Korean Air Logo
12:00 pm - 5:45 pm
SEA
-
KTM
41h 00m
1 stop
$1,210Korean Air
Tue, Sep 8 - Mon, Sep 14
Multiple Airlines Logo
11:00 pm - 7:40 pm
KTM
-
SEA
33h 25m
2 stops
Multiple Airlines Logo
1:30 am - 9:45 pm
SEA
-
KTM
31h 30m
2 stops
$1,322Multiple Airlines
Tue, Oct 13 - Sun, Nov 1
Korean Air Logo
7:20 pm - 10:40 am
KTM
-
SEA
28h 05m
1 stop
Korean Air Logo
11:00 am - 5:45 pm
SEA
-
KTM
41h 00m
1 stop
$1,341Korean Air
Sat, Oct 10 - Sun, Nov 1
Korean Air Logo
7:20 pm - 10:40 am
KTM
-
SEA
28h 05m
1 stop
Korean Air Logo
11:00 am - 5:45 pm
SEA
-
KTM
41h 00m
1 stop
$1,341Korean Air
Tue, Sep 8 - Tue, Sep 15
Air India Logo
1:25 pm - 11:22 am
KTM
-
SEA
34h 42m
3 stops
Air India Logo
1:30 pm - 6:10 pm
SEA
-
KTM
39h 55m
2 stops
$1,362Air India
Tue, Sep 8 - Tue, Sep 15
Qatar Airways Logo
6:00 pm - 12:45 pm
KTM
-
SEA
31h 30m
1 stop
Qatar Airways Logo
4:25 pm - 8:50 am
SEA
-
KTM
27h 40m
1 stop
$1,365Qatar Airways
Sat, Oct 10 - Fri, Oct 30
Singapore Airlines Logo
10:50 pm - 8:45 am
KTM
-
SEA
22h 40m
1 stop
Singapore Airlines Logo
9:45 am - 9:50 pm
SEA
-
KTM
23h 20m
1 stop
$1,623Singapore Airlines
Fri, Aug 14 - Sun, Aug 16
Singapore Airlines Logo
10:50 pm - 8:45 am
KTM
-
SEA
22h 40m
1 stop
Singapore Airlines Logo
10:15 am - 9:30 pm
SEA
-
KTM
22h 30m
1 stop
$6,423Singapore Airlines
Booking Insights

KAYAK's insights & trends for Kathmandu to Seattle flights

Get data-powered insights and trends into flights from Kathmandu to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Kathmandu to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Kathmandu to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Kathmandu to Seattle is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is $1,627 and $1,513 respectively.

Good to know

Low season

February

Cheapest flight

$651
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Kathmandu to Seattle

When to book flights from Kathmandu to Seattle

Are your dates flexible? Find out the best times to travel from Kathmandu to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Kathmandu to Seattle

  • Can I bring a pet on Turkish Airlines flights from Kathmandu to Seattle?

    Turkish Airlines allows pets on board its flights. Both dogs and cats can be carried in the cabin in an appropriate container, provided the total weight of the container and the animal does not exceed 17 lbs. Alternatively, larger pets can be transported as checked baggage.

  • How do I go from Seattle Airport (SEA) to the city center?

    To go from Seattle Airport (SEA) to the city center, one option is to take the Link Light Rail. The SeaTac/Airport Link light rail station is about a 10-15 minute walk from the airport terminal, and the final stop is at Westlake Center in Downtown Seattle. The train provides fast and direct transportation, taking just 35 minutes to reach the city center. Trains arrive every 8 to 15 minutes, depending on the time of day. Another option is to use buses or taxis that are available from the airport.

  • What seat options does Qatar Airways provide on flights from Kathmandu to Seattle?

    Qatar Airways provides a range of seat options on flights from Kathmandu to Seattle, including Standard Seat Selection, chargeable Seat Selection for preferred seats, and other seating options. On most fares, Standard Seat Selection is available free of charge, which offers standard economy seats with extra legroom. Preferred Seat Purchase is also available for a fee, which allows passengers to select preferred seats, subject to availability.

  • What is the luggage allowance on Korean Air flights from Kathmandu to Seattle?

    The luggage allowance on Korean Air flights varies depending on the class of travel. Economy class passengers are generally allowed one free checked bag with a maximum weight of 50 lbs and a maximum dimension of 62 in and one carry-on bag with a maximum weight of 26 lbs and a maximum dimension of 45 in. Prestige and First class passengers usually have a higher luggage allowance, with two to three free checked bags and a higher weight limit per bag.

  • What is the cheapest flight from Kathmandu to Seattle?

    In the last 5 days, the lowest price for a flight from Kathmandu to Seattle was $651 for a one-way ticket and $1,170 for a round-trip.

  • Do I need a passport to fly between Kathmandu and Seattle?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Kathmandu and on arrival in Seattle.

  • Which airports will I be using when flying from Kathmandu to Seattle?

    When flying out of Kathmandu you will be using Kathmandu Tribhuvan. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Kathmandu to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Kathmandu to Seattle?

    Star Alliance is the only airline alliance operating flights between Kathmandu and Seattle.

  • How does KAYAK find such low prices on flights from Kathmandu to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Kathmandu to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Kathmandu to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Kathmandu is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Kathmandu to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Kathmandu with another airline. Booking your flights between Kathmandu and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Kathmandu to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Kathmandu up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Kathmandu to Seattle

  • Air China has implemented various measures to reduce its carbon emissions, including carbon offset programs, green fuel initiatives, and the use of more fuel-efficient aircraft including flights from Kathmandu to Seattle.
  • Malaysian Airlines operates scheduled flights between Kathmandu and Seattle. Passengers at the airport can access lounges through various lounge access programs such as Priority Pass or LoungeKey. The Executive Lounge at Tribhuvan International Airport (KTM) is specifically used by Malaysia Airlines passengers.
  • Layovers for flights from Kathmandu to Seattle vary depending on the airline. Some common layovers include Doha (DOH), Los Angeles (LAX), Dubai (DXB), and Kuala Lumpur (KUL).
  • Emirates provides a range of services for people with reduced mobility flights from Kathmandu to Seattle, including assistance with boarding, deplaning, and transferring between flights. The airline offers wheelchair assistance, with airport staff helping passengers to move through the airport and board the aircraft.
  • Delta Airlines offers a range of services for families with kids flights from Kathmandu to Seattle, including kid-friendly meals as part of its on board menu, and Delta also has an Unaccompanied Minor Program for children traveling alone.

Reviews of the top airline flying from Kathmandu to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Kathmandu to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kathmandu to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1584 reviews
8.1Entertainment
8.6Crew
8.0Comfort
7.8Food
8.3Boarding
Airline reviews

Great flight attendants as always, they were super helpful and friendly. Made my kids super comfortable during long flight. The food were fine, some great taste some not so much specially the scramble eggs thats too watery. And maybe since its general food, better to not serve coffee pudding that kids cant really eat or maybe just serve different pudding for kids.

10.0 ExcellentMaria, Jul 2026
SIN - SEA
Read more Singapore Airlines reviews

Great flight attendants as always, they were super helpful and friendly. Made my kids super comfortable during long flight. The food were fine, some great taste some not so much specially the scramble eggs thats too watery. And maybe since its general food, better to not serve coffee pudding that kids cant really eat or maybe just serve different pudding for kids.

The quality and the quantity of food was terrible. I was starving to death at the end of the flight. Used serve 3 meals long time ago, now reduced to 2 meals during the 17 hours flight. Never offered wine or tea to us. We have to ask . Extremely hard to get the attention of the flight attendants. They intentionally ignore us to minimize the service. Bathrooms were dirty

Never book through Kayak. They can offload booking to third parties that are completely horrible.

Crew is excellent Wifi needs to be improved in order to connect to the internet.

The flight arrived on time. 2×2 seating meant no one needed to sit in the middle. This was a connectibf flight from Singapore and required going to 3 counters in different levels to check a golf bag

The staff on the plane were attentive and friendly. The frustration with the cabin crew was that we were served second to special diet people. And, we were in economy section. The boarding staff was mediocre. Got scolded for requesting to sit with spouse on 14 hours long flight home. Was told they cannot break up families for us. Didn’t understand how we were denied sitting together as we are husband and wife. After many words of exchange, we were accommodated. Cleaning crew did a horrible job! Bathrooms were unsanitary or dirty from beginning of flight! Didn’t expect sparkling as its economy, but did except decent.

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

I very much liked and appreciated the service on board. The seating arrangement in Business feels uncomfortable. It's not made for tall people, in any case.

Great airline. Excellent service, good food & lots of TV movies/shows to choose from.

Everything you need to know for your flight from Kathmandu to Seattle

Information on your arrival and departure airports