$380 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 9/6. 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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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$932
Manila
Manilanonstop$977
Ho Chi Minh City
Ho Chi Minh City2 stops$1,025
Singapore
Singaporenonstop$664
Denpasar
Denpasar1 stop$675
Hanoi
Hanoi1 stop$767
Phuket City
Phuket City1 stop$670
Cebu City
Cebu City1 stop$683
Da Nang
Da Nang1 stop$715
Chiang Mai
Chiang Mai1 stop$810
Angeles City
Angeles City1 stop$826
Boracay
Boracay1 stop$1,137
Ko Samui
Ko Samui1 stop$862
Vientiane
Vientiane1 stop$1,139
Davao City
Davao City2 stops$963
Krabi
Krabi2 stops$1,084
Bangkok
Bangkok1 stop$932
Manila
Manilanonstop$977
Ho Chi Minh City
Ho Chi Minh City2 stops$1,025
Singapore
Singaporenonstop$664
Denpasar
Denpasar1 stop$675
Hanoi
Hanoi1 stop$767
Phuket City
Phuket City1 stop$670
Cebu City
Cebu City1 stop$683
Da Nang
Da Nang1 stop$715
Chiang Mai
Chiang Mai1 stop$810
Angeles City
Angeles City1 stop$826
Boracay
Boracay1 stop$1,137
Ko Samui
Ko Samui1 stop$862
Vientiane
Vientiane1 stop$1,139
Davao City
Davao City2 stops$963
Krabi
Krabi2 stops$1,084

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

Thu, Oct 8 - Fri, Oct 30
Singapore Airlines Logo
10:15 am - 5:35 pm
SEA
-
SIN
16h 20mnonstop
Singapore Airlines Logo
9:00 am - 8:10 am
SIN
-
SEA
14h 10mnonstop
$664Singapore Airlines
Thu, Oct 8 - Thu, Oct 15
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
$666Singapore Airlines
Mon, Nov 2 - Wed, Nov 18
Asiana Airlines Logo
12:10 am - 9:55 pm
SEA
-
SIN
29h 45m
1 stop
Asiana Airlines Logo
11:10 pm - 1:55 pm
SIN
-
SEA
30h 45m
1 stop
$786Asiana Airlines
Mon, Nov 16 - Tue, Dec 1
Asiana Airlines Logo
12:10 am - 12:10 pm
SEA
-
HAN
21h 00m
1 stop
Asiana Airlines Logo
1:30 pm - 1:55 pm
HAN
-
SEA
15h 25m
1 stop
$835Asiana Airlines
Fri, Oct 23 - Sun, Nov 22
Korean Air Logo
12:50 pm - 9:45 pm
SEA
-
BKK
18h 55m
1 stop
Korean Air Logo
12:55 am - 9:00 am
BKK
-
SEA
23h 05m
1 stop
$932Korean Air
Sun, Aug 9 - Thu, Aug 20
ANA Logo
4:30 pm - 3:30 pm
SEA
-
BKK
33h 00m
1 stop
ANA Logo
7:00 am - 6:32 pm
BKK
-
SEA
25h 32m
2 stops
$933ANA
Sat, Sep 12 - Sun, Sep 20
ANA Logo
5:20 pm - 5:55 am
SEA
-
BKK
46h 35m
2 stops
ANA Logo
9:35 pm - 6:32 pm
BKK
-
SEA
34h 57m
2 stops
$934ANA
Sat, Sep 19 - Sat, Sep 26
Korean Air Logo
12:50 pm - 11:35 pm
SEA
-
BKK
20h 45m
1 stop
Korean Air Logo
2:35 am - 10:40 am
BKK
-
SEA
22h 05m
1 stop
$939Korean Air
Wed, Nov 18 - Mon, Feb 15
Philippine Airlines Logo
11:55 pm - 4:25 am
SEA
-
MNL
12h 30mnonstop
Philippine Airlines Logo
10:05 pm - 6:35 pm
MNL
-
SEA
12h 30mnonstop
$977Philippine Airlines
Fri, Oct 16 - Sun, Oct 25
Philippine Airlines Logo
11:10 pm - 4:00 am
SEA
-
MNL
13h 50mnonstop
Philippine Airlines Logo
10:40 pm - 7:35 pm
MNL
-
SEA
11h 55mnonstop
$978Philippine Airlines
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 5 days was to Singapore, at $708 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 5 days was $708.

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 $528, 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 $734 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,345 and $1,198 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 seasonMay
Cheapest flight$380
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 42% increase in price.
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.

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 $479 one-way - $862 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.
8.5
EVA AirOverall score based on 1478 reviews
8.1Food
8.4Boarding
8.3Comfort
8.7Crew
8.0Entertainment
Airline reviews

Great food on both legs and fast customer service from the stewardesses....

10.0 ExcellentTony, Jun 2026
LAX - CRK
Read more EVA Air reviews

Great food on both legs and fast customer service from the stewardesses....

The food was great; the attendants were pleasant. Waiting to onboard felt stressful, as passengers who had connecting flights at SEA had to be verified again for two things before getting a real boarding pass: passport and carry-on luggage weight. The boarding pass issued by another airline (i.e., the first leg of my trip) did not count. The S terminal at SEA was barren, with lots of sensory overloads because every airline was repeatedly broadcasting long lists of names of passengers who had not gone through that verification process. The carry-on luggage weight check seemed futile to me. I saw a woman who opened her over-weight suitcase to move some items into her shoulder bag. She still boarded with two huge bags with her. I assume this check is an endeavor of ensuring fairness of the overhead bin space or optimizing fuel efficiency when gas price is through the roof, but I don't know if either goal is achieved. Nonetheless I respect the crew's dedication to the SOP.

Food tasted like the meat had freezer burn. Another thing all of our 4 check baggage was left somewhere and my oral medication for my diabetes was left in one of the lost luggage..most of the flight attendants did not know how to communicate in English.. the trip was a total nightmare

The crew need to be more friendly it seem everything such a rush situation during dinner and breakfast. Smiles to the passenger go such a long way just the service from Seattle to Taipei, service from Taipei to Bangkok were great more pleasant the flight attendant from Thailand she was very nice, as far as entertainment were amazing , wiffi connection was incredible great, I will be able to charged my phone from Seattle to Taipei and from taipei to Bangkok I won’t be able to do so flight attendant told me that because I don’t have the original iPhone charger connection has nothing to do what type of charger I have so she said there is nothing she can do about it. Foods : from Seattle to Taipei were ok no flavor , from Taipei to Bangkok I have chicken teriyaki the rice is overcooked all the flavor stuck on the aluminum wraps , breakfast the congee was on point and delicious. Will I recommend anyone to fly with Eva air go for it so you can experience yourself for myself I won’t fly with them again I’m gonna stick with Singapore airlines instead.

Never went. Got rescheduled with Phillipine Airlines to Bali, which was fine.

I am really satisfied with Eva Air and will definitely fly with them again.

The flight from SEA to Taipei was on a Boeing 787-10. Economy seats were unacceptably cramped and the seats themselves were old and lacking cushion. I'm only 5'3" and couldn't cross my legs as my knees were up against the seat in front of me! I could not get WiFi to work most of the time on both flights and crew were invisible except to serve meals. The onboard entertainment also did not work reliably and was very hard to hear through the provided earbuds. The Asian vegetarian meals were interesting. I hope they can provide a fully vegan option though these meals seemed to be already. I appreciate their providing these meals options for vegans. I don't think I'll fly a 787-10 if I can help it. It was the definition of a sardine can in Economy.

My luggage was lost and didnt arrive in manila yesterday. And until now im still waiting for the confirmation if my luggage is teady for pick up in terminal 1

I always preferred EVA air every time I visit Philippines. It’s just this time that I have to be very early to make sure that I don’t miss my flight due to TSA problem. There’s only one choice of food serve which you use to have 2 on our flight from Taiwan to Philippines . Otherwise I will still use EVA air in my future flight.

Service was great. Flight schedule was on time. Staffs are friendly.

We really enjoyed our flight to Seattle. The food was great and service was attentive.

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.

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.

The friendliness of the attendants, and the quality of the service.

Flight attendants were awesome! Very helpful and patients. Some food were good but maybe not serving fish that kinda make the whole aircraft smell fishy. The “fried pork” was tasty but too much skin so it doesnt taste that great.

Very concerned with guest comforts going out of their way to accommodate special dietary needs when the guests hadn’t pre-ordered.

Clean modern comfortable. Food could have been better, I only ate breakfast I wish they wouldn’t wake sleeping passengers who would rather sleep through dinner. No tea or coffee for breakfast

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

Fast and efficient flight. Wifi worked well. Food selection could have been better

I had ordered vegetarian food. What I was presented was extremely dissatisfying and not up to the mark. I pretty much did not eat entire 19 hours. For.an airline voted as best in business, it was extremely disappointing. Seats were not comfortable to sleep. Entertainment system didn’t have much choice. WiFi didn’t work for more than half the time. Cabin crew were also difficult to understand. A bit of diversity like Emirates crew would go a long way.

A little more room from the reclining seat in the front of me.

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

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

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Humm, I should have known that the seat I peaked on my flight from Inchon to Manila was designed for a toddler or very small person.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

Kayak uses scammer sites to steal money from their victims.

Kayak along with airfare assay are attempting to steal my money. Charges are being pressed.

Customer service and attention to details. The food was good.

Felt like the oldest plane in Asiana Fleet. Screen was 5-6in only and no charging at all. Movie selection wasn't great.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

I’d have rated Asiana good except an unfortunate incident in which I felt one of your employee didn’t really help us. During the first leg of the trip, the flight from LAX to ICN, I left my backpack on the plane. When I realized, I reported to one of your employee who promised me that it’d be taken care of, that my backpack will be there at HCM city. When we arrived there, HCM people had no idea and my backpack was still at Incheon airport who denied any knowledge whatsoever. I was left in the cold and felt helpless. I was very disappointed. I’d like someone to look into this and let me know.

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.

Flight went very well. Cabin crew were all courteous and very helpful, always with smiles on their faces. Food was great. I always love heated nuts with wine. Flying business class with Philippine Airlines is always a pleasant experience.

Flight attendants did very well, they were all friendly and very helpful .

Great food selection in lounge. Excellent bartender, friendly staff. Good service on the plane.

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.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports