$169 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 4/26. 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$659
Manila
Manilanonstop$693
Singapore
Singapore1 stop$332
Denpasar
Denpasar1 stop$750
Hanoi
Hanoi1 stop$598
Phuket City
Phuket City1 stop$720
Cebu City
Cebu City1 stop$443
Da Nang
Da Nang1 stop$711
Chiang Mai
Chiang Mai1 stop$846
Angeles City
Angeles City2 stops$855
Boracay
Boracay2 stops$1,004
Ko Samui
Ko Samui1 stop$958
Vientiane
Vientiane3 stops$1,300
Davao City
Davao City2 stops$780
Krabi
Krabi2 stops$1,172
Bangkok
Bangkok1 stop$659
Manila
Manilanonstop$693
Singapore
Singapore1 stop$332
Denpasar
Denpasar1 stop$750
Hanoi
Hanoi1 stop$598
Phuket City
Phuket City1 stop$720
Cebu City
Cebu City1 stop$443
Da Nang
Da Nang1 stop$711
Chiang Mai
Chiang Mai1 stop$846
Angeles City
Angeles City2 stops$855
Boracay
Boracay2 stops$1,004
Ko Samui
Ko Samui1 stop$958
Vientiane
Vientiane3 stops$1,300
Davao City
Davao City2 stops$780
Krabi
Krabi2 stops$1,172

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, Sep 20 - Sun, Nov 1
Philippine Airlines Logo
11:10 pm - 6:55 pm
SEA
-
SIN
28h 45m
1 stop
Philippine Airlines Logo
7:45 pm - 6:35 pm
SIN
-
SEA
38h 50m
1 stop
$332Philippine Airlines
Sun, Sep 13 - Wed, Oct 28
Philippine Airlines Logo
11:10 pm - 6:55 pm
SEA
-
SIN
28h 45m
1 stop
Philippine Airlines Logo
7:45 pm - 7:35 pm
SIN
-
SEA
38h 50m
1 stop
$363Philippine Airlines
Wed, Sep 16 - Thu, Oct 29
Philippine Airlines Logo
11:10 pm - 9:05 am
SEA
-
SIN
18h 55m
1 stop
Philippine Airlines Logo
10:30 am - 7:35 pm
SIN
-
SEA
24h 05m
1 stop
$366Philippine Airlines
Tue, Oct 13 - Wed, Oct 28
Singapore Airlines Logo
10:15 am - 5:15 pm
SEA
-
BKK
41h 00m
1 stop
Singapore Airlines Logo
9:35 am - 8:10 am
BKK
-
SEA
36h 35m
1 stop
$659Singapore Airlines
Thu, Oct 1 - Thu, Oct 29
Singapore Airlines Logo
10:15 am - 6:25 pm
SEA
-
SGN
42h 10m
1 stop
Singapore Airlines Logo
4:15 pm - 8:10 am
SGN
-
SEA
29h 55m
1 stop
$668Singapore Airlines
Mon, Aug 10 - Thu, Sep 10
Korean Air Logo
7:20 am - 10:10 pm
SEA
-
SGN
24h 50m
2 stops
Korean Air Logo
7:30 am - 10:40 am
SGN
-
SEA
17h 10m
1 stop
$703Korean Air
Mon, Aug 10 - Thu, Sep 10
Korean Air Logo
7:20 am - 10:10 pm
SEA
-
SGN
24h 50m
2 stops
Korean Air Logo
7:30 am - 3:24 pm
SGN
-
SEA
21h 54m
2 stops
$714Korean Air
Mon, Aug 31 - Tue, Sep 8
Asiana Airlines Logo
12:55 am - 12:15 pm
SEA
-
HAN
21h 20m
1 stop
Asiana Airlines Logo
1:25 pm - 2:55 pm
HAN
-
SEA
15h 30m
1 stop
$719Asiana Airlines
Tue, Sep 8 - Tue, Sep 29
ANA Logo
7:06 am - 10:05 pm
SEA
-
CEB
23h 59m
2 stops
ANA Logo
9:15 am - 11:28 pm
CEB
-
SEA
29h 13m
2 stops
$732ANA
Tue, Oct 6 - Wed, Nov 4
Asiana Airlines Logo
12:10 am - 12:15 pm
SEA
-
HAN
22h 05m
1 stop
Asiana Airlines Logo
11:50 pm - 1:55 pm
HAN
-
SEA
29h 05m
1 stop
$736Asiana 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 72 hours was to Singapore, at $533 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 $533.

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 $494, 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 $739 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,237 and $1,221 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$166
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 41% increase in price.
Flight from Seattle to Ho Chi Minh City

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 $316 one-way - $791 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 1417 reviews
8.3Comfort
8.1Food
8.7Crew
8.4Boarding
8.0Entertainment
Airline reviews

Crew was good. Sometimes food was eh. The spaghetti is gross for me. First time i got food, they didn’t provide utensils so i ate with my hands. I was hungry. They gave it to me 20 mins later when a crew member came by. I would fly with them again. Nobody is perfect

8.0 ExcellentAnonymous, Apr 2026
TPE - LAX
Read more EVA Air reviews

Crew was good. Sometimes food was eh. The spaghetti is gross for me. First time i got food, they didn’t provide utensils so i ate with my hands. I was hungry. They gave it to me 20 mins later when a crew member came by. I would fly with them again. Nobody is perfect

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.

Overall was good but it would be good if the airline is providing snack such as sandwich or instant noodle between meals for LA to Taipei

Amazing customer service. BUT!! It would be nice if the flight attendants SMILE a little more, I know they are doing their job, but it is importantly to smile back and be warm to passengers. Nobody is trying to hit on them, it’s just being polite. So, please Taiwanese flight attendants: SMILE MORE WHEN YOU INTERACT WITH PAYING CUSTOMERS

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.

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

Everything was fine except the seats were quite compressed and hard for the 12 hour flight

The crew are amazing. Very professional, polite, kind, and accommodating.

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 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

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

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.

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

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.

I was glad that the plane was not totally full.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports