$269 Find Cheap Flights from Seattle to Southeast Asia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Southeast Asia departing on 2/7. 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 Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Southeast Asia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Southeast Asia.
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Flight Deals

Cheap Flights from Seattle to Southeast Asia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop$668
Manila
Manila1 stop$689
Singapore
Singaporenonstop$642
Denpasar
Denpasar2 stops$722
Hanoi
Hanoi1 stop$633
Phuket City
Phuket City1 stop$642
Cebu City
Cebu City1 stop$681
Da Nang
Da Nang1 stop$630
Phnom Penh
Phnom Penh1 stop$773
Chiang Mai
Chiang Mai1 stop$675
Angeles City
Angeles City1 stop$682
Ko Samui
Ko Samui2 stops$971
Vientiane
Vientiane2 stops$913
Boracay
Boracay2 stops$880
Davao City
Davao City2 stops$800
Krabi
Krabi2 stops$812
Bangkok
Bangkok1 stop$668
Manila
Manila1 stop$689
Singapore
Singaporenonstop$642
Denpasar
Denpasar2 stops$722
Hanoi
Hanoi1 stop$633
Phuket City
Phuket City1 stop$642
Cebu City
Cebu City1 stop$681
Da Nang
Da Nang1 stop$630
Phnom Penh
Phnom Penh1 stop$773
Chiang Mai
Chiang Mai1 stop$675
Angeles City
Angeles City1 stop$682
Ko Samui
Ko Samui2 stops$971
Vientiane
Vientiane2 stops$913
Boracay
Boracay2 stops$880
Davao City
Davao City2 stops$800
Krabi
Krabi2 stops$812

Book Cheap Seattle to Southeast Asia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Southeast Asia 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 Seattle to Southeast Asia

Tue, Jan 6 - Thu, Jan 22
Singapore Airlines Logo
8:45 am - 11:30 amSEA-HAN
35h 45m1 stop
Singapore Airlines Logo
12:45 pm - 7:10 amHAN-SEA
33h 25m1 stop
$633Singapore Airlines
Find Deal
Tue, Jan 6 - Thu, Jan 22
Singapore Airlines Logo
8:45 am - 11:30 amSEA-HAN
35h 45m1 stop
Singapore Airlines Logo
12:45 pm - 7:10 amHAN-SEA
33h 25m1 stop
$635Singapore Airlines
Find Deal
Sun, Oct 12 - Sat, Oct 25
Philippine Airlines Logo
11:35 pm - 3:25 pmSEA-KUL
24h 50m1 stop
Philippine Airlines Logo
2:25 am - 7:35 pmKUL-SEA
32h 10m1 stop
$636Philippine Airlines
Find Deal
Sun, Sep 14 - Tue, Sep 30
Philippine Airlines Logo
11:35 pm - 6:55 pmSEA-SIN
28h 20m1 stop
Philippine Airlines Logo
8:00 pm - 7:15 pmSIN-SEA
38h 15m1 stop
$646Philippine Airlines
Find Deal
Mon, Jan 5 - Thu, Jan 22
Asiana Airlines Logo
12:10 am - 10:00 pmSEA-HAN
30h 50m1 stop
Asiana Airlines Logo
11:30 pm - 1:55 pmHAN-SEA
29h 25m1 stop
$660Asiana Airlines
Find Deal
Sun, Oct 5 - Sat, Oct 18
Asiana Airlines Logo
2:15 pm - 12:15 pmSEA-HAN
32h 00m1 stop
Asiana Airlines Logo
1:25 pm - 12:30 pmHAN-SEA
37h 05m1 stop
$661Asiana Airlines
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Sun, Oct 5 - Sat, Oct 25
China Airlines Logo
1:10 am - 9:40 amSEA-SGN
18h 30m1 stop
China Airlines Logo
10:50 am - 7:20 pmSGN-SEA
22h 30m1 stop
$695China Airlines
Find Deal
Sun, Sep 7 - Sun, Sep 28
China Airlines Logo
1:40 am - 4:20 pmSEA-SGN
24h 40m1 stop
China Airlines Logo
5:30 pm - 7:20 pmSGN-SEA
15h 50m1 stop
$696China Airlines
Find Deal
Mon, Oct 13 - Mon, Mar 30
EVA Air Logo
1:30 am - 9:55 amSEA-SGN
18h 25m1 stop
EVA Air Logo
1:50 am - 7:30 pmSGN-SEA
31h 40m1 stop
$745EVA Air
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Sun, Oct 5 - Sun, Apr 26
EVA Air Logo
1:30 am - 11:40 amSEA-SGN
20h 10m1 stop
EVA Air Logo
1:50 am - 7:30 pmSGN-SEA
31h 40m1 stop
$747EVA Air
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Southeast Asia flights

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

What is the cheapest Seattle to Southeast Asia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Southeast Asia from Seattle found in the last 72 hours was to Singapore, at $576 round-trip. The most popular route is from Seattle (SEA) to Singapore (SIN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $576.

Can I save money by flying with a layover from Seattle to Southeast Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,033, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Seattle to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Southeast Asia, 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 Seattle to Southeast Asia is February, when tickets cost $790 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,255 and $1,196 respectively.

What’s the cheapest day of the week to fly from Seattle to Southeast Asia?

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

For Seattle to Southeast Asia, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Southeast Asia back to Seattle, the best deals are generally found on Wednesday, with Thursday being the most expensive.

How far in advance should I book a flight from Seattle to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Southeast Asia, you should book around 4 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$269
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Seattle to Singapore

FAQs - booking Southeast Asia flights

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

    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 Seattle to Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Southeast Asia 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 Seattle to Southeast Asia?

    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 from Seattle to Southeast Asia with an airline and back with another airline.

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

    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 from Seattle to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally in the morning, when round-trip flights cost $986 on average. Morning departures are around 6% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,081.

Reviews of the top 5 airlines serving from Seattle to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Southeast Asia. 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 Seattle to Southeast Asia? 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
EVA AirOverall score based on 1234 reviews
8.6Crew
8.0Entertainment
8.1Food
8.4Boarding
8.3Comfort
Airline reviews

Staff show very stress with delayed flight more than passenger.

4.0 OkayTommy, Aug 2025TPE - SGN
Read more EVA Air reviews

Staff show very stress with delayed flight more than passenger.

Awful had to ask for a supervisor to sit with my flight companion even t booked the tickets together weeks before

Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean

Flight Attendants could have been nicer and food portions could be bigger.

Great experience, comfort and food is delicious. Always great service and one time

The food from Los Angeles to Taipei made me throw up. The flight is also not comfort. But the staffs are very friendly and nice.

Sub sandwhich for a snack through mid flight and giving a bottle water was a good idea

For the price, it was better than other airlines; quality of food and service was very good.

I appreciate the email reminders for online check-in which made my entry to the lines less stressful. The flight was on schedule and on time. The baording staff were proactively helpful and approachable. The airplane inflight food, entertainment and comfies as well as provisions are excellent even in the economy seating. The airline transfer was smooth and easy! Luggage safe and intact! Thank you EVA airline for making my trip a reliable safe and comfortable experience.

Great but I am not sure why I was placed in zone 4 for boarding despite being an Infinity Member??? Can you explain online. Thanks

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Overall was a lovely experience. The crew were kind and courteous throughout the entire flight.

Better organization of boarding procedures. Terrible leadership guiding people to gates.

I did not like how the plane landed. It was not smooth.

Been flying with China Airline over years many times. Good experience with them, no issues.

China Airlines crews are very excellent doing their job. Very friendly and hardworking. I will always choose China Airlines over and over. Thank you all for making my flight comfortable. God bless to all the staff. :)

Staff was so nice and very helpful with directions aswell!

Most relaxing long distance flight I have been on. And I have flown on many.

It was our first time flying with China Airlines and had a very nice experience. The airline staff & crews both on the ground and air were very nice. Food on the plane was very good. Will recommend it to family and friends.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

Very clean ,flight attendants very professional,nice , Boarding was very easy

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

Love flying Asiana. Been using it for over a decade now.

Coming back to America was a peaceful flight everyone and everything was perfect

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

It was amazing. I was not expecting the phenomenal customer service Asiana provides.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Two meals were served on this flight; one was a repeat of the meal I had had on the flight immediately preceding this one, which was bad enough I didn't even try it. Drinks were very limited. All I wanted was water, and on a 10.5 hour flight, I was given 3 cups of about 3 ounces each.

You have to pay $25 to get access to smoking lounge. One coffee and small bottle of water coupon provided. Max time 2 hrs for two entries total.

Crew excellent calling me by name ! Only downside was no inflight WiFi

I was glad that the plane was not totally full.

Well, I needed to make a change to my flight and I called the airline and they said yes no problem $700 and we can do that and I agreed to it so they canceled my tickets and went to rebook and came back after being on hold for an hour and a half and said I’m sorry, sir. There was an error. It is $2800 Now and I said never mind. I will just use those flights and she proceeded to tell me that they already canceled them because I said I was interested in doing the change. I told her yes for $700. I was fine with doing a change but not $2800 so give me my tickets back and she proceeded to tell me that she could not do that and I had to pay the $2800 to get my tickets back that I already spent $2800 on. So I had to book tickets on another airline to get home And that cost a lot of money too. I’m a little pissed off at Philippine airline right now because of what they did to me and I’m not sure I ever wanna fly with them again. I’ve flown with them plenty in the past, but this just really put a bad taste in my mouth.. Not to mention on my way there leaving Seattle going to Vancouver. I got to the airport three hours in advance and they had booked me through Alaska Airlines to do that little trip. My connecting flight would leave about six hours after I got to Vancouver BC. I stood in Alaska Airlines lying for a little over two hours and then they proceeded to tell me that they couldn’t check me in because I wasn’t there an hour in advance. I kept telling the lady at the beginning of the line that I was afraid they were not gonna let me in because it was taking so long and she said oh don’t worry about it. You’re fine you’ve got time. Well I ended up spending $600 to get to Canada that night just to make my connecting flight because Alaska air wouldn’t do anything and Filipino Air told me it was Alaska air problem but Alaska air said since you booked through Philippine air, we can’t fix it. I had about 50 minutes to make my flight, but they refused to check me in because I wasn’t there an hour in advance yet. I’ve been standing in their line for about two hours and 15 minutes.

The flight was fantastic and the crew was absolutely excellent, but the entertainment system on the B777 was not working. That's a long time to spend with no electronics. The crew offered I-Pads but I had brought my own. I am only pointing this out because this is the second flight on Philippines Air where the entertainment system was down. FJM

The checking in agent tried to give me a different seat. She tried to give me an economy seat even though I had already checked in with a seat assigned and paid an extra $300 for those seats. She also separated our seating assignment. Very unprofessional and seriously a bad example for an agent. She was rude when I showed her my receipts and she made us wait more than 15 minutes before we were able to get the right boarding passes and correct seats (seats that we paid for in advance)!!!

Purchased exit row window seat for extra leg room and sleep. Worth the price. Attendants maintained restrooms regularly. No snacks/chips/nuts/cookies beyond what was served with meals.

Terrible check in and food was like from fast food

Delayed, from morning flight, they moved to evening. And said, their earlier flight is already full but we can upgrade the seat

I thought the meals and meal choices were excellent. The cabin staff was helpful and as is the norm for Pinays, extraordinarily empathetic.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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