KTM - SEA

$581 Find Cheap Flights from Kathmandu to Seattle

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 8/20. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kathmandu to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kathmandu to Seattle, as well as popular online travel agencies
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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

Mon, Oct 20 - Sun, Nov 23
Korean Air Logo
7:20 pm - 10:40 amKTM-SEA
28h 05m1 stop
Korean Air Logo
11:00 am - 5:30 pmSEA-KTM
40h 45m1 stop
$1,195Korean Air
Find Deal
Mon, Oct 20 - Sun, Nov 23
Korean Air Logo
7:20 pm - 10:40 amKTM-SEA
28h 05m1 stop
Korean Air Logo
11:00 am - 5:30 pmSEA-KTM
40h 45m1 stop
$1,196Korean Air
Find Deal
Mon, Oct 20 - Sun, Nov 23
KLM Logo
3:05 pm - 4:05 pmKTM-SEA
37h 45m2 stops
KLM Logo
1:55 pm - 2:05 pmSEA-KTM
34h 25m2 stops
$1,348KLM
Find Deal
Mon, Oct 20 - Sun, Nov 23
KLM Logo
3:05 pm - 4:05 pmKTM-SEA
37h 45m2 stops
KLM Logo
1:55 pm - 2:05 pmSEA-KTM
34h 25m2 stops
$1,349KLM
Find Deal
Tue, Nov 18 - Tue, Jun 16
 Logo
12:25 am - 6:10 pmKTM-SEA
31h 30m2 stops
 Logo
1:50 am - 9:45 pmSEA-KTM
31h 10m2 stops
$1,404
Find Deal
Tue, Nov 18 - Wed, Jun 17
 Logo
12:25 am - 9:31 amKTM-SEA
22h 51m2 stops
 Logo
5:40 am - 9:45 pmSEA-KTM
27h 20m2 stops
$1,433
Find Deal
Mon, Oct 20 - Sun, Nov 23
Qatar Airways Logo
6:00 pm - 7:31 pmKTM-SEA
38h 16m2 stops
Qatar Airways Logo
4:05 pm - 5:30 pmSEA-KTM
35h 40m1 stop
$1,441Qatar Airways
Find Deal
Fri, Sep 19 - Sat, Oct 4
Qatar Airways Logo
6:00 pm - 12:45 pmKTM-SEA
31h 30m1 stop
Qatar Airways Logo
8:00 am - 10:15 amSEA-KTM
37h 30m2 stops
$1,475Qatar Airways
Find Deal
Mon, Oct 20 - Sun, Nov 23
Singapore Airlines Logo
11:05 pm - 9:55 amKTM-SEA
47h 35m3 stops
Singapore Airlines Logo
5:47 pm - 9:50 pmSEA-KTM
38h 18m2 stops
$1,928Singapore Airlines
Find Deal
Mon, Oct 20 - Sun, Nov 23
Singapore Airlines Logo
11:05 pm - 9:55 amKTM-SEA
47h 35m3 stops
Singapore Airlines Logo
5:47 pm - 9:50 pmSEA-KTM
38h 18m2 stops
$1,935Singapore Airlines
Find Deal
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’s the cheapest day of the week to fly from Kathmandu to Seattle?

The average price of all round-trip flights from Kathmandu to Seattle clicked on KAYAK for each day over the last 12 months.

For Kathmandu to Seattle, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to Kathmandu, the best deals are generally found on Wednesday, with Sunday being the most expensive.

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 October, where tickets cost $1,358 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $2,213 and $2,211 respectively.

Good to know

Low seasonFebruary
Cheapest flight$581
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 18% 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 3 days, the lowest price for a flight from Kathmandu to Seattle was $581 for a one-way ticket and $1,195 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, oneworld, and SkyTeam are the airline alliances operating flights between Kathmandu and Seattle, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Kathmandu to Seattle, Korean Air or Singapore Airlines?

    The two airlines most popular with KAYAK users for flights from Kathmandu to Seattle are Korean Air and Singapore Airlines. With an average price for the route of $1,358 and an overall rating of 8.4, Korean Air is the most popular choice. Singapore Airlines is also a great choice for the route, with an average price of $1,567 and an overall rating of 8.1.

  • 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 5 airlines serving 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.
8.4
Korean AirOverall score based on 1121 reviews
8.5Boarding
8.2Comfort
8.7Crew
8.1Food
8.2Entertainment
Airline reviews

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

6.0 GoodJohn, Jul 2025ICN - SEA
Read more Korean Air reviews

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

The best ever, friendly and attentive cabin crew, amazing captains who utilised their expertise for less turbulence, just overall amazing

Overall I was quite pleased with the experience; the cleanliness; the polite and attentiveness of the cabin crew; and the delicious food options.

I would never have been able to make the transfer in time without asking for a wheelchair

Good food, real silverware, polite staff, smooth landing, charging plugs, good entertainment options.

Loved that I had an exit row seat, and there was no one else in the row! And again, I don' use on-line entertainment at all (I read or sleep) but I very much appreciate that I didn't hear anyone else's entertainment!

The entire crew was amazing. They went out of their way to make us enjoy a great travel experience.

Loved everything! This flight had premium economy and I didn't see an option to upgraded to premium economy OR buy premium economy tickets. How come?

Some Crew were distinguishably fake in their interactions with passengers.

We was missed the flight They doesn’t lest us fly next flight without payment They charge me 606 hundred dollars What is very unacceptable,our first fight ticket was almost 2000 dollars, again paid 700 it’s hurt … airlines need to do something please

They were very pleasant and helpful. My husband and I were sitted apart. We asked if we could be seated together were told flight ws fuly booked but would try. After a while they were able to make it work we got seats together. Their food is good and attendents are very friendly/helpful.

Food from Surabaya was below average but from Singapore is much better

Excelent service and plenty of food and drinks during the flight. Flight crew very attentive to our needs. Leg room between rows are very disappointing.

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.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

Everything was great keep up the good work 😁, can't ask for more.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

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 was good except food , food choices was very less. Washrooms were closed.overall good experience.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

The flight was smooth Thank God but the delays and changing gates for 3-4 times made me so tired of walking back and forth with heavy bags I thought I was going to pass out with heavy headaches but Thank God finally found the final gate and home safe. These delays happen anytime for important reasons so just be patient when you come across these situations.

Worse fight I ever take since I start flying , still have even made home , and crew abandon us half way home . No water no food and no even anyone to answer our questions

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Seats very small and unable to pre purchase internet or seat upgrades

I recently travelled with Qatar Airways from Doha to Dulles in the QSuite, and the experience was nothing short of exceptional. The QSuite truly feels like a First-Class experience, with its luxurious design, privacy, and comfort. The cabin crew, especially the lady in charge of the cabin, was remarkable—professional, attentive, and genuinely kind. The food was excellent, and the comfort of the seat was absolutely first-class, making the journey smooth and enjoyable. While the in-flight experience was outstanding, I have a few points of feedback. Firstly, the content available in the in-flight entertainment system could be expanded and upgraded to include a more diverse and updated collection. This would elevate the entertainment experience to match the premium standards of the QSuite. Secondly, regarding the Wi-Fi service: while QSuite passengers receive one hour of complimentary Wi-Fi, any additional usage requires a fee of USD 10. Considering the premium pricing of QSuite, it would be more fitting to include unlimited Wi-Fi as part of the experience, further enhancing the luxury offered to passengers. Lastly, I must highlight an issue with luggage handling. Unfortunately, my luggage did not make it through the transit, which was disappointing. While the ground crew assured me that it would be delivered to my home on the same day as it was arriving on the next flight, this promise was not fulfilled, and the delay added unnecessary inconvenience to an otherwise excellent experience. Overall, the QSuite experience was exceptional, but addressing these areas would further solidify Qatar Airways’ position as a leader in luxury air travel.

Seating is terrible, having seats so crammed is unacceptable for a 15-hour journey. I cannot stress enough how uncomfortable it is to sit in such an aircraft. Leg space is roomier in a domestic aircraft. I have not experienced this kind of crammy seating in domestic flights either in the US or other international airlines overseas.

riding in first class, you don't expect every time you order your dinner or breakfast that the first thing the stewardess says is Let me see if we have any left. Also, the food selection was not great: 3 of 4 entrees had mushrooms and I dont eat mushrooms, the 4th item was 'let me see if we have any left' and this was within 30 mins of entering the flight! Same experience level, it didn't feel first class this round.

Took forever to board. They made announcements without the loudspeaker and since the waiting room was full of screaming kids, no one could hear what they were saying. The business class sleeper seats were designed for tall skinny people. When partially reclined there was nowhere to rest my feet because they did not reach the footrest. and when fully reclined there wasn't room at my sides for my arms. Definitely one of the worst sleeper seats I have ever had.

About an hour delay but we made it to Chicago. I feel that the smaller connecting flights are the ones that cause the delays on the bigger planes that fly international.

Amazing trip! No delays, no broken or lost luggage, and amazing food.

The food we received during the flight was excellent. The service was very friendly. Definitely the best value for the money when flying across the Atlantic.

I use a wheelchair for mobility. Both in my flight from Houston and back to Houston from Istanbul, the Turkish airline staff asked that I claim my wheelchair at the luggage area. On arrival to Istanbul, parts of the wheelchair were in disarray at that time I raised no objection however upon claiming my wheelchair in Houston parts where outright missing. In both occasions, upon arriving in Houston and arriving in Istanbul, I asked multiple times why am made to pick up my wheelchair in the baggage claim rather than at the jet bridge. Getting the wheelchair at the jet bridge minimizes the probability of loosing parts because they can be hopefully reclaimed on the spot. I was told in Houston that a manager turned down my request to claim the wheelchair at the jet bridge in Houston. This is extremely frustrating because a wheelchair is not a set of clean underwear or a toothbrush- this is the way I move. A Turkish Arline staff took my complaint at the luggage claim area in Houston but as of the writing of this review the only contact I have received from the airline is because I initiated a claim rather than her as she told me she would.

The security at the airport was excellent. The one criticism is the boarding process just before entering the plane. There were only 2 boarding lines and there were no barriers thus leading to a mass rush to enter the plane. I suggest that they board by rows, eight or ten rows at a time to prevent the mass rush to enter the plane. Otherwise, I would highly recommend Turkish Airlines

Everything was very good, except that the plane was an hour and a half late

I liked everything: the work of the flight attendants, the work of the crew, the frequency on the plane and in the toilet.

The check in process at Istanbul airport caused my family a great deal of stress and disappointment due to the following factors: 1) WE HAD TO PAY US$330 for check on bags, despite holding Economy tickets that Turkish airlines website clearly states that flights from Istanbul to Miami had a 2 checked bags allowance. 2) Airport staff not only lacked empathy for senior travelers (75 yrs old and 71 yrs old), but were also rude as well. The supervisor at check it offered "if you don't pay for the bags, you can just remain and sleep at the airport for however long you wish. What a terrible way to treat customers !!! 3) We were bumped from agent to agent to agent FIVE times, showing everyone the communication we received telling us we had the 2 bags entitlement. Two elderly people lugging 4 suitcase around and around the Turkish terminal. Again, what a sad way to treat customers !!! 4) We need a case opened to get a refund for the amount we paid. Something is amiss, screams unethical, and sounds unscrupulous......At First , we were told we must pay for 4 bags. All of a sudden, it became 2 bags, and finally all 4 bags were checked on with payments demanded for 2. Why did it vary from agent to agent???? 5) OVERALL, A TERRIBLE AND SUSPICIOUSLLY UNSCRUPULOUS EXPERIENCE FLYING WITH TURKISH AIRLINES. WE ARE TERRIBLY DISAPPOINTED AND SAD THAT OUR VISIT TO A BEAUTIFUL CITY ENDED IN SUCH A HORRIBLE EXPERIENCE

I recently flew with Turkish Airlines, and I can confidently say it was one of the best travel experiences I’ve ever had. From the moment I boarded, the crew was incredibly attentive, warm, and professional. They went above and beyond to ensure everyone was comfortable and well taken care of throughout the flight. The highlight, however, was the food! I’ve flown with many airlines, but Turkish Airlines sets the bar incredibly high when it comes to in-flight dining. Every meal was fresh, flavorful, and beautifully presented. The variety of dishes, even on a long-haul flight, was impressive. It felt like dining at a high-end restaurant at 35,000 feet! The seats were comfortable, the entertainment options were great, and the overall atmosphere made the journey enjoyable. Turkish Airlines truly excels in combining luxury and hospitality. I wouldn’t hesitate to fly with them again—highly recommend!

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