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Find cheap flights from Seattle to Southeast Asia from $423

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 8/18. 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
0 bags
Mon 7/1
Mon 7/8

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Best Southeast Asia Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Manila
Manilanonstop$731
Bangkok
Bangkok1 stop$745
Singapore
Singapore1 stop$747
Denpasar
Denpasar1 stop$820
Cebu City
Cebu City2 stops$1,178
Phuket City
Phuket City1 stop$918
Hanoi
Hanoi1 stop$768
Phnom Penh
Phnom Penh1 stop$840
Chiang Mai
Chiang Mai1 stop$833
Da Nang
Da Nang1 stop$763
Angeles City
Angeles City1 stop$805
Vientiane
Vientiane1 stop$1,150
Koh Samui
Koh Samui2 stops$1,863
Davao City
Davao City1 stop$1,040

Good to know

Low season

May

High season

January

Cheapest flight

$423
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 12% lower on average.
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 to Southeast Asia from Seattle 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 to Southeast Asia with an airline and back to Seattle 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 to Southeast Asia from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Seattle to Southeast Asia

 
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
Korean AirOverall score based on 1146 reviews
8.3Comfort
8.2Entertainment
8.1Food
8.6Boarding
8.8Crew
Airline reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

10.0 ExcellentAnonymous, Apr 2024IAD - ICN
Read more about Korean Air reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

I enjoyed flying on Korean Air. The service was great and the food was yummy, especially the bibimbap and cold spicy noodles. The only thing that bummed me out on this red-eye flight was that my seat did not properly recline so I was not able to sleep.

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

You did not put me on a Korean Air flight! so I do not have nothing to say

My flight was diverted to Atlanta and I was not given enough time. I paid my travel on April 23, 2023. It was originally Delta from Norfolk to NY, then Korean Air from NY all the way Philippines which is my final stop. Instead from Atlanta to Korea I flew Delta which is okay. Then Korea to Philippines, I flew Asiana Airlines. What I did not like, Ieagle did not sent me an email that my flight was change and so when I went to check in Wednesday the 10th, at 4:30 a.m they told me my flight was delayed at 6;00 p.m and diverted in Atlanta and I am flying Asiana from Korea to Philippines. I do not appreciate that Kayak or Ieagle chenge our flights 5 times and then last minute change again during my day of flight. I hope that you will not make any changes of my flight o Feb 15th because it has to be the same flight with my husband. That is the reason why we made the arrangements early on.

Wonderful cabin crew!!!!! Food was poor, in flight entertainment was just ok. They need to serve more water on a 15 hour flight--we were dehydrated and kept asking for water.

Going through security a third time to get on the next flight was again utterly ridiculous and unnecessary. We were in a International secure area once again and as far as I'm concerned should not have been put through the gears for absolutely no reason. The United States can get all the information they need from the travel itinerary, there was no need to be forced out of a secure area to personally interview everyone on a connecting flight to find out their US immigration status.

Flight arrived early, fantastic, since it is short flight, no food being served

Their announcement was not quite clear in Chinese. The rest is pretty good.

The hygiene of the bathrooms were terrible. Urine smells leaked out into the cabin and the seats were really tight, even for a petite woman like myself. Flight attendants did not go through the cabin enough to offer refreshments.

Fast and efficient boarding. Flight was on time. Service was very good for our long flight. First time flying with this airline and I would highly recommend.

Eva Air's Business Class is pretty decent. With the given price, I think that the food can be better.

Pleasant, comfortable, and entertaining. All told, ZERO issues with it. And sadly, so far the flight was WAY more comfortable than the hellhole that is "Lambug Beach Resort" at Badian Beach!

It was a pleasant fly with Eva Air from NYC to Taipei. The crew were friendly and the food was exceeded my expectation.

Eva air is a good airline. The seats on the way to Taipei could have certainly been more comfortable, but all in all it was a pretty good experience.

Overall the flight was what might be expected for a long haul flight to Asia in economy class. The cabin crew was attentive and the food was good. Boarding was fairly fast and easy. The one thing I found frustrating was the EVA app. It is terrible. Trying to do anything on it was almost impossible.

EVA would not help with ticket issue since they were purchased through a travel agency. Even though it was EVA ticket stock. Travel agency Budget Air didn't reissue ticket after airline change which I didn’t learn until trying to checkin on Christmas Day and there was no contact number for the agency to help. I will never use Budget Air to purchase flight again and disappointed in EVA’s refusal to help. Thankfully just under 12 hrs before departure someone from the agency was available to reissue tickets. I was starting to think we would not be flying and the stress trying to resolve was completely unacceptable.

seamless check in/ friendly staff, food is good, always love flying Eva Air

Asian Vegitarian food was test less No Salt or pepper served Need to improve with Chef who can caters for Peaple from India I am sure Chef knows different varieties of food Indian People like

Flight attendants rude, they disappear for almost 3 hours not doing rounds to see what people needed. The laboratories were full of empty water cups, because they never come back to collect them.

The flight attendant, where kind of rude, there where hiding for almost 3 hours, without doing rounds to see if people needed water or pickup the water cups, the toilets were full of water cups, because they never come back to pick them up.

Flew on an Airbus 350-900. Excellent aircraft properly cleaned and serviced. Flight crew was excellent plane departed and arrived on time. The A350 has excellent air circulation far better than the 777. I would recommend Asiana to anyone looking to fly in a clean comfortable environment. This is my second round trip flight from New York to Bangkok via Asiana and I will book Asiana again!

Amazing service and fabulous syaff. Loved the jumbo jet too, comfortable.

The entertainment screens are dated and needs to be changed to new screens. Then when we got home, I found out 2 of our luggage’s were damaged (huge) and some items stolen.

I could not choose my seat prior to check in

JetBlue's check-in was great, but there was an in-flight attendant who was very rude and unkind. I didn't realize that the bathrooms were already locked 30 mins prior to landing and needed to use the restroom. Instead of politely asking me to return, she rudely told me, 'NO, bathrooms are locked! Go back to your seat!' The JetBlue flight was more than an hour delay, which made me almost miss my connecting flight with Asiana. I understand the reasoning, but the action they took to get a hold of maintenance was time consuming. It took them more than 30 mins to get a hold of maintenance and for maintenance to get started. The Asiana flight and crew were wonderful, in general. They waited for us who were delayed from the previous flight before they took off and were very kind to take my checked baggage's info. Seats were a little uncomfortable for such long flight, but service and flight attendants were great! However, my 3 checked baggages are missing! They're lost somewhere in the transition. I'm writing this review 3 days after my arrival to the Philippines, and my 3 checked baggages, where my wedding dress is, are all still missing! I and the CEB airport crew have sent multiple emails to both JetBlue and Asiana, and neither has responded to any of our emails. Although, I was able to get in contact with JetBlue's Interline Department who confirmed that the bags were turned over to Asiana without confirmation details.

The full flat bed was not that comfortable, hard and lumpy., too much space wasted with those bulky walls and divisions instead of making the bed 3-4 inches wider. The compartment where you put your feet is like a shoebox, poor design. Toilets of A350 are just too small, sink is too small

Aside from a LOT of turbulence the flight was perfect! The flight crew was superb and the food was delicious!

Overall mediocre-good, with the service on the flight operated by American Airlines being subpar and not the kind and standard you’d get from a Japan Airlines crew. The majority of the stewards on AA were not as gentle and friendly as those from Japan Airlines. Japan Airlines were more attentive to detail and your flight experience. AA was more interested in completing their tasks.

Very pleasant, look forward to flying with JAL again if the price is right.

All of the JAL flights in this itinerary were great. However the last leg of my flight from LAX to SFO was through Japan Air’s partner, AA which wqsn’t up to par. We were informed only minutes before boarding time of a delay despite the airlines knowing about the delay far earlier (the aircraft we would be taking arriving arrived and disembarked close to our boarding time, for all to see but AA still kept the original boarding time posted until last minute). Furthermore, once we boarded the taxi/wait time was also extended, with the pilot blaming “construction at SFO” for the delay, rather than taking accountability for the the plane’s late arrival coming into LAX. We took off approximately an hour later than scheduled. It’s for these reasons I adamantly avoid American Airlines when possible. Again, JAL was stellar.

I like the braised beef., miso soup,, and green tea. Very little choices of hollywood movies. The PA announcement in English was not very clear and very soft. I could hardly hear.

More updated movies & Chinese movies. The food sometimes overcooked. Prefer to have more neat snacks in between than just choose from the menu. Please change the menu every now and then. This is my second time flying within one year and the menu didn’t change at all!

Food is lagging. Very poor choice. Like vending machine fast food.

Please change the menu more often. The beef is not tender, more choice in ice cream flavor. Dessert is not good too.

Again I paid for an upgrade on my credit card didn’t get it need a refund. . American I not good at gettin in contact for refunds.

I didn’t like the check in process I had to check in at the counter took too much time . Didn’t give the upgrade my seat .

l enjoyed the variety of good and drink choices. The flight attendants were very quick and efficient to our needs.

The Premium economy class is not the same as some other airlines because there are no economy seats on these planes. Basically you’re getting an economy seat that’s a little wider. The seats are not that much more comfortable. The service and food experience is similar to economy class on other Asian airlines. There aren’t enough toilets for the entire plane therefore we are forced to share the business class toilets that are closed off with curtains.

Good flight. The food was served a bit late, hence a hurry to finish before landing. Excellent crew and service

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

Awesome as always. I wish though the cabin for premium was upgraded.... Same old sane old :(

It was a great flight Food was great Crew was spectacular

In general good, but the machine seems to be long in operation and some functions were restricted as e. g. Adjusting of seats.

When boarding, after business class should be premium economy, but economy class already lined-up at the gate blocking premium economy to board. Singapore airline crew should done a better job to organize this chaos :( Thank you.

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

The premium economy seats were not that great. It could have been more premium than economy seats.

People were so nice! Economy seats were small and cramped feeling for me. I’m slender and 6 feet tall

Book cheap flights from Seattle to Southeast Asia

Recent round-trip flight deals

11/10Sun
nonstopPhilippine Airlines
14h 10mSEA-MNL
11/24Sun
nonstopPhilippine Airlines
11h 35mMNL-SEA
$731
11/17Sun
1 stopPhilippine Airlines
22h 30mSEA-BKK
12/10Tue
1 stopPhilippine Airlines
34h 25mBKK-SEA
$745
9/30Mon
1 stopAsiana Airlines
18h 20mSEA-SGN
10/14Mon
1 stopAsiana Airlines
26h 35mSGN-SEA
$761
8/20Tue
1 stopAsiana Airlines
18h 20mSEA-SGN
9/30Mon
1 stopAsiana Airlines
26h 35mSGN-SEA
$762
9/30Mon
1 stopKorean Air
20h 30mSEA-SGN
10/15Tue
2 stopsKorean Air
23h 00mSGN-SEA
$800
8/20Tue
2 stopsKorean Air
25h 05mSEA-SGN
10/1Tue
2 stopsKorean Air
21h 50mSGN-SEA
$805
11/5Tue
1 stopSingapore Airlines
41h 45mSEA-MNL
11/18Mon
1 stopSingapore Airlines
27h 45mMNL-SEA
$827
8/27Tue
1 stopEVA Air
18h 55mSEA-BKK
11/20Wed
1 stopEVA Air
16h 00mBKK-SEA
$858
9/3Tue
1 stopEVA Air
20h 10mSEA-SGN
9/30Mon
1 stopEVA Air
31h 40mSGN-SEA
$858
9/19Thu
1 stopSingapore Airlines
28h 25mSEA-MNL
10/9Wed
1 stopSingapore Airlines
28h 10mMNL-SEA
$886

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Recent one-way flight deals

8/18Sun
1 stopSTARLUX Airlines
24h 55mSEA-SGN
$423
8/18Sun
1 stopSTARLUX Airlines
24h 55mSEA-SGN
$447
9/3Tue
1 stopAsiana Airlines
30h 45mSEA-SGN
$486
9/2Mon
1 stopKorean Air
20h 30mSEA-SGN
$492
10/1Tue
1 stopAsiana Airlines
18h 20mSEA-SGN
$495
9/2Mon
2 stopsKorean Air
24h 43mSEA-SGN
$497
11/21Thu
1 stopSingapore Airlines
41h 30mSEA-SGN
$509
8/27Tue
1 stopSingapore Airlines
41h 35mSEA-DPS
$516
8/14Wed
1 stopEVA Air
19h 30mSEA-SGN
$522
10/7Mon
1 stopEVA Air
20h 10mSEA-SGN
$531

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Last minute flights from Seattle to Southeast Asia

Last minute flight, train and bus deals

6/1Sat
multi-stopUnited Airlines
32h 20mSEA-SIN
6/5Wed
multi-stopUnited Airlines
25h 01mSIN-SEA
$1,209
6/1Sat
multi-stopUnited Airlines
40h 03mSEA-SIN
6/5Wed
multi-stopUnited Airlines
29h 05mSIN-SEA
$1,213
6/4Tue
multi-stopSingapore Airlines
21h 45mSEA-MNL
6/18Tue
multi-stopSingapore Airlines
39h 32mMNL-SEA
$1,447
6/4Tue
multi-stopSingapore Airlines
41h 10mSEA-BKK
6/11Tue
multi-stopSingapore Airlines
36h 35mBKK-SEA
$1,461
6/3Mon
multi-stopKorean Air
19h 10mSEA-BKK
6/5Wed
multi-stopKorean Air
30h 20mBKK-SEA
$1,611
6/3Mon
multi-stopKorean Air
19h 10mSEA-BKK
6/5Wed
multi-stopKorean Air
27h 05mBKK-SEA
$1,663
6/3Mon
multi-stopEVA Air
18h 00mSEA-CEB
6/18Tue
multi-stopEVA Air
22h 15mCEB-SEA
$1,851
6/3Mon
multi-stopAsiana Airlines
18h 50mSEA-BKK
7/15Mon
multi-stopAsiana Airlines
25h 35mBKK-SEA
$1,870
6/3Mon
multi-stopEVA Air
24h 10mSEA-BKK
6/10Mon
multi-stopEVA Air
31h 55mBKK-SEA
$1,926
6/4Tue
multi-stopAsiana Airlines
20h 20mSEA-BKK
6/7Fri
multi-stopAsiana Airlines
27h 15mBKK-SEA
$1,982

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Seattle - Southeast Asia Flights

Departure:

Seattle (SEA)United States

Return flight deals:

Southeast Asia - Seattle

Cabin classes:

$171
$124
$266
$56