RM 1,450 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 5/10. 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Southeast Asia, as well as popular online travel agencies
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Best Southeast Asia Flight Deals from Seattle

Cheapest return prices found by our users on KAYAK in the last 72 hours
Kuala Lumpur
Kuala Lumpur1 stopRM 2,790
Kota Kinabalu
Kota Kinabalu2 stopsRM 3,564
Kuching
Kuching2 stopsRM 3,299
Penang
Penang1 stopRM 3,438
Kuala Lumpur
Kuala Lumpur1 stopRM 2,790
Kota Kinabalu
Kota Kinabalu2 stopsRM 3,564
Kuching
Kuching2 stopsRM 3,299
Penang
Penang1 stopRM 3,438

Cheap Flights from Seattle to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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 return flight deals from Seattle to Southeast Asia

Wed, 12 Nov - Wed, 19 Nov
Philippine Airlines Logo
21:30 - 10:45SEA-KUL
21h 15m1 stop
Philippine Airlines Logo
11:45 - 18:40KUL-SEA
22h 55m1 stop
RM 2,790Philippine Airlines
Find Deal
Thu, 5 Feb - Thu, 19 Feb
Philippine Airlines Logo
21:30 - 01:25SEA-KUL
35h 55m1 stop
Philippine Airlines Logo
11:45 - 18:40KUL-SEA
22h 55m1 stop
RM 2,862Philippine Airlines
Find Deal
Thu, 30 Oct - Wed, 5 Nov
Singapore Airlines Logo
09:45 - 13:55SEA-KUL
37h 10m1 stop
Singapore Airlines Logo
11:05 - 07:10KUL-SEA
36h 05m1 stop
RM 2,912Singapore Airlines
Find Deal
Sun, 1 Mar - Thu, 19 Mar
Singapore Airlines Logo
08:45 - 16:15SEA-KUL
39h 30m1 stop
Singapore Airlines Logo
18:30 - 08:10KUL-SEA
28h 40m1 stop
RM 2,942Singapore Airlines
Find Deal
Mon, 3 Nov - Mon, 15 Dec
Korean Air Logo
11:00 - 22:25SEA-KUL
19h 25m1 stop
Korean Air Logo
23:55 - 09:00KUL-SEA
25h 05m1 stop
RM 3,143Korean Air
Find Deal
Mon, 3 Nov - Sun, 14 Dec
Korean Air Logo
11:00 - 22:25SEA-KUL
19h 25m1 stop
Korean Air Logo
23:55 - 09:00KUL-SEA
25h 05m1 stop
RM 3,148Korean Air
Find Deal
Thu, 25 Sep - Mon, 6 Oct
United Airlines Logo
07:00 - 23:55SEA-KUL
25h 55m2 stops
United Airlines Logo
14:15 - 14:25KUL-SEA
39h 10m1 stop
RM 3,181United Airlines
Find Deal
Thu, 23 Oct - Wed, 3 Dec
United Airlines Logo
15:28 - 10:10SEA-KUL
27h 42m2 stops
United Airlines Logo
17:00 - 00:59KUL-SEA
23h 59m2 stops
RM 3,207United Airlines
Find Deal
Mon, 27 Oct - Tue, 4 Nov
China Airlines Logo
01:10 - 14:20SEA-PEN
22h 10m1 stop
China Airlines Logo
15:20 - 18:10PEN-SEA
18h 50m1 stop
RM 3,887China Airlines
Find Deal
Tue, 6 Jan - Wed, 11 Mar
China Airlines Logo
00:10 - 14:20SEA-PEN
22h 10m1 stop
China Airlines Logo
15:20 - 08:15PEN-SEA
31h 55m2 stops
RM 3,967China Airlines
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 Manila, at RM 3,049 return. 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 RM 5,493.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of RM 1,994, 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 October, when tickets cost RM 3,484 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of return tickets is RM 7,258 and RM 5,287 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.

If you are looking for a flight deal from Seattle to Southeast Asia, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Southeast Asia, Monday is the cheapest day to fly and Sunday is 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 a flight from Seattle to Southeast Asia, you should book around 3 weeks before departure, which saves you about 21% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonMay
Cheapest flightRM 1,450
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Seattle to Kuala Lumpur Airport

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 travellers 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 return 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 retur flights cost RM 1,436 on average. Morning departures are around 20% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the evening, which is peak travel time and where the average cost of a ticket is RM 1,805.

Reviews of the top airline flying 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.
8.3
China AirlinesOverall score based on 767 reviews
8.3Boarding
8.0Entertainment
8.5Crew
8.0Comfort
7.8Food
Airline reviews

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

10.0 ExcellentAnonymous, Aug 2025SEA - TPE
Read more China Airlines reviews

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.

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.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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