$270 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 4/18. 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

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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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$617
Manila
Manila1 stop$655
Singapore
Singaporenonstop$527
Denpasar
Denpasar1 stop$534
Hanoi
Hanoi1 stop$497
Phuket City
Phuket City1 stop$575
Cebu City
Cebu City1 stop$619
Da Nang
Da Nang1 stop$493
Phnom Penh
Phnom Penh3 stops$2,625
Chiang Mai
Chiang Mai1 stop$779
Angeles City
Angeles City1 stop$619
Ko Samui
Ko Samui1 stop$884
Boracay
Boracay2 stops$669
Davao City
Davao City2 stops$727
Vientiane
Vientiane2 stops$702
Krabi
Krabi2 stops$698
Bangkok
Bangkok1 stop$617
Manila
Manila1 stop$655
Singapore
Singaporenonstop$527
Denpasar
Denpasar1 stop$534
Hanoi
Hanoi1 stop$497
Phuket City
Phuket City1 stop$575
Cebu City
Cebu City1 stop$619
Da Nang
Da Nang1 stop$493
Phnom Penh
Phnom Penh3 stops$2,625
Chiang Mai
Chiang Mai1 stop$779
Angeles City
Angeles City1 stop$619
Ko Samui
Ko Samui1 stop$884
Boracay
Boracay2 stops$669
Davao City
Davao City2 stops$727
Vientiane
Vientiane2 stops$702
Krabi
Krabi2 stops$698

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

Sun, Aug 16 - Mon, Sep 21
Singapore Airlines Logo
10:15 am - 3:55 pm
SEA
-
DAD
39h 40m
1 stop
Singapore Airlines Logo
4:45 pm - 8:45 am
DAD
-
SEA
30h 00m
1 stop
$493Singapore Airlines
Sun, Apr 12 - Fri, Apr 17
Singapore Airlines Logo
10:15 am - 5:35 pm
SEA
-
SIN
16h 20mnonstop
Singapore Airlines Logo
9:00 am - 8:45 am
SIN
-
SEA
14h 45mnonstop
$527Singapore Airlines
Sun, Apr 19 - Tue, May 5
Philippine Airlines Logo
11:10 pm - 11:10 am
SEA
-
KUL
21h 00m
1 stop
Philippine Airlines Logo
12:20 pm - 8:05 pm
KUL
-
SEA
22h 45m
1 stop
$569Philippine Airlines
Mon, Apr 6 - Wed, Jun 17
Asiana Airlines Logo
12:55 am - 9:30 pm
SEA
-
SIN
29h 35m
1 stop
Asiana Airlines Logo
10:50 pm - 2:55 pm
SIN
-
SEA
31h 05m
1 stop
$582Asiana Airlines
Thu, Aug 27 - Mon, Sep 14
Asiana Airlines Logo
12:55 am - 9:30 pm
SEA
-
SIN
29h 35m
1 stop
Asiana Airlines Logo
10:50 pm - 2:55 pm
SIN
-
SEA
31h 05m
1 stop
$583Asiana Airlines
Sun, Apr 26 - Tue, May 5
Philippine Airlines Logo
11:10 pm - 11:10 am
SEA
-
KUL
21h 00m
1 stop
Philippine Airlines Logo
12:20 pm - 8:05 pm
KUL
-
SEA
22h 45m
1 stop
$594Philippine Airlines
Mon, Apr 27 - Mon, May 11
Korean Air Logo
12:50 pm - 11:30 pm
SEA
-
CEB
19h 40m
1 stop
Korean Air Logo
1:00 am - 10:40 am
CEB
-
SEA
24h 40m
1 stop
$619Korean Air
Mon, May 4 - Tue, Jun 2
Korean Air Logo
12:50 pm - 11:30 pm
SEA
-
CEB
19h 40m
1 stop
Korean Air Logo
1:00 am - 11:00 am
CEB
-
SEA
25h 00m
1 stop
$621Korean Air
Tue, Aug 18 - Wed, Aug 26
ANA Logo
4:30 pm - 9:55 pm
SEA
-
SGN
39h 25m
1 stop
ANA Logo
11:15 pm - 2:25 pm
SGN
-
SEA
29h 10m
1 stop
$639ANA
Wed, Aug 12 - Sun, Sep 13
ANA Logo
4:30 pm - 1:30 pm
SEA
-
MNL
30h 00m
1 stop
ANA Logo
2:40 pm - 2:25 pm
MNL
-
SEA
14h 45m
1 stop
$662ANA
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 $504 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 $504.

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 $439, 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 September, when tickets cost $748 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,210 and $1,197 respectively.

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 1 week before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$270
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 41% increase in price.
Flight from Seattle to Da Nang

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.

Top tips for finding cheap flights to Southeast Asia

  • Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: Singapore $294 one-way - $588 round-trip

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 1366 reviews
8.4Boarding
8.0Entertainment
8.3Comfort
8.6Crew
8.1Food
Airline reviews

It was easy going check in was easy and pretty fast entertainment was up to date on movies and food was ok

8.0 ExcellentAnonymous, Feb 2026
IAH - TPE
Read more EVA Air reviews

It was easy going check in was easy and pretty fast entertainment was up to date on movies and food was ok

Premium Economy seats were more comfortable than other airlines I have recently been on. Great staff. Food was unremarkable.

From checking at the airport to end of flights, attentive and caring personnel, comfortable seating, great food. I plan on using EVA again. Thank you, all.

Very nice, I feel I got good value for the price.

It was a pleasure to fly with EVA airlines from Taipei to San Francisco.

Amazing one of the best airlines i have ever traveled with. I live with medical issues called psoriatic arthritis and was in pain on the flight. The flight crew made sure I had fresh ice pack ever hour. Going above an beyond with service and care ⭐️⭐️⭐️⭐️⭐️.

Certain flight crew member were rude and short with me when I asked questions.

We were very impressed with the modern plane its amenities, as well as the services of flight attendants.

The crew very accommodating and food too is good. Keep up the good work

The crews are very efficient. Other airlines should learn from them when it comes to boarding and departing from the airplane. They also display efficiency in serving meals. They don't keep the aisles blocked for hours like some other airlines. The food is poor. Generally the food was unrecognizable and poorly prepared. The only thing that made it better than US flag carriers is that there was a fresh fruit bowl with each meal.

The crew was very professional and friendly. Although there was a water leak from panel above, the crew was trying to mitigate the consequence. We are happy with its service and the value offered. We will definitely take China Airlines again.

Well, we upgraded and on a 14 hour flight not sure how we would tolerate it otherwise. The upgrades are ridiculously expensive and even with empty seats even in first class it was difficult to upgrade. Probably won’t fly China Air again due to this. The attendants tho were much better than the airlines in the states and there attentiveness and care for your comfort far exceeds other airlines in the states.

Flight attendants. Food, entertainment and most of all, be on time.

Delayed. Not a full flight and whole rows left open with the paid seating. Food was ok. My beef meal only had one cube of beef the rest carrot cubes. Entertainment on personal device but didn’t know about it until the flight was almost done.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flat bed full lying position is not comfortable at all, this could be improved, it is at an awkward position which i dont have the same issues with other airlines business class.

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

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.

They ran out of the second choice of food was stuck with fish

Food was served to different people at different times and it wasn't clear why. The crew apologized for the wait. But it felt odd and inconsistent. They could use charging ports on each of the seats. Mine didn't have any. Also, they could've offered more snacks. It was a 12+ hour flight and no snacks were ever offered. Everything else was OK.

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

I wish there was a little more leg room between the seats. The recline was good and seats overall were comfortable. I also didn’t like the 2-4-2 configuration.

toilets could be cleaned more frequently, everything else was pretty good.

The flight crew was phenominal! We couldn't have asked for any better. They were experienced professionals.

The consistency with Singapore Airlines is fantastic. Crew are always brilliant and food delicious in business class

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Better screens, it would have been nice to have more comfortable seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

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

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

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.

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.

Check in process was excellent. Lounge needs improvement. Food not palatable and no good choices.

It was never explained why the departure flight was canceled and delayed for 1.5 hours. It would have been nice to stick with the original itinerary.

Flight was good took off on time arrived early. Crew was awesome and did a great job. Very helpful and courteous. Bags arrived super fast with no hassles. Great flight!!!!!!

Many movies do not have captions, which would have been helpful when you have to live with the flight engine noise.

Everything was fantastic!!!! I can’t wait to fly home 😃!!!!!

Food could of been better. Crew was pretty much average. It was raining a lot on arrival, had to take a bus to immigration building,

Flight was really good, considering the semi bad weather in MNL. Food was great. Crew kept offering throughout the flight. Wifi signal was intermittent though.

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

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports