Southeast Asia

$166+ Cheap flights from Seattle (SEA) to Southeast Asia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
May 17 — May 241
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Cheap flight deals from Seattle to Southeast Asia

Cheapest flights from Seattle to Southeast Asia
Explore the most affordable flight options available from Seattle to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.

This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:10 pm
SEA
-
SIN
1 stop28h 45m
Philippine Airlines
Sun 11/17:45 pm
SIN
-
SEA
1 stop38h 50m
Philippine Airlines
Deal found 4/16$332
This oojo deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:55 pm
SEA
-
SIN
1 stop31h 15m
Philippine Airlines
Thu 11/2610:30 am
SIN
-
SEA
1 stop24h 05m
Philippine Airlines
Deal found 4/16$348
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:10 pm
SEA
-
SIN
1 stop28h 45m
Philippine Airlines
Wed 10/287:45 pm
SIN
-
SEA
1 stop38h 50m
Philippine Airlines
Deal found 4/16$363
This Philippine Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:10 pm
SEA
-
SIN
1 stop18h 55m
Philippine Airlines
Thu 10/2910:30 am
SIN
-
SEA
1 stop24h 05m
Philippine Airlines
Deal found 4/16$366
This Philippine Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:10 pm
SEA
-
SIN
1 stop18h 55m
Philippine Airlines
Sun 11/17:45 pm
SIN
-
SEA
1 stop38h 50m
Philippine Airlines
Deal found 4/16$406
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:10 pm
SEA
-
SIN
1 stop28h 45m
Philippine Airlines
Wed 11/117:45 pm
SIN
-
SEA
1 stop38h 50m
Philippine Airlines
Deal found 4/16$412
This Philippine Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:10 pm
SEA
-
SIN
1 stop18h 55m
Philippine Airlines
Thu 11/1210:30 am
SIN
-
SEA
1 stop24h 05m
Philippine Airlines
Deal found 4/16$416
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:55 pm
SEA
-
CEB
1 stop37h 00m
Philippine Airlines
Mon 11/165:35 am
CEB
-
SEA
1 stop29h 00m
Philippine Airlines
Deal found 4/16$421
This oojo deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:55 pm
SEA
-
SIN
1 stop26h 55m
Philippine Airlines
Mon 11/1610:30 am
SIN
-
SEA
1 stop24h 05m
Philippine Airlines
Deal found 4/16$424
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:55 pm
SEA
-
KUL
1 stop19h 25m
Philippine Airlines
Mon 11/1612:20 pm
KUL
-
SEA
1 stop22h 15m
Philippine Airlines
Deal found 4/16$435
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:55 pm
SEA
-
SIN
1 stop17h 45m
Philippine Airlines
Mon 11/162:30 pm
SIN
-
SEA
1 stop20h 05m
Philippine Airlines
Deal found 4/16$438
This Booking.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:10 pm
SEA
-
CEB
1 stop24h 35m
Philippine Airlines
Tue 9/2912:05 am
CEB
-
SEA
1 stop35h 00m
Philippine Airlines
Deal found 4/16$443

Find flight deals from Seattle to Southeast Asia

Keep the following information in mind while searching for Seattle to Southeast Asia flight deals. Data was last updated April 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$332
(FlightHub)

One-way from

$166
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$790
Provider with most accurate pricing for Seattle/Tacoma Intl-Manila Ninoy Aquino Intl flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Manila Ninoy Aquino Intl flights.
From Seattle/Tacoma Intl to Southeast Asia
One-way flight from Seattle/Tacoma Intl to Southeast Asia
Highest demand for flights based on searches. 4% potential increase in price ($41 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
Use the filters below to find and compare flights from Seattle to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Thu 9/10

12:50 pm-12:35 pm

1 stop33h 45m

Ho Chi Minh City

Mon 9/14

11:45 pm-10:40 am

1 stop24h 55m

$753

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 9/2

7:20 am-11:15 pm

2 stops25h 55m

Ho Chi Minh City

Tue 9/15

7:30 am-10:40 am

1 stop17h 10m

$758

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 9/1

7:20 am-9:35 pm

2 stops24h 15m

Hanoi Noibai

Mon 9/7

11:10 pm-10:40 am

1 stop25h 30m

$785

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 9/10

7:20 am-10:35 am

2 stops37h 15m

Hanoi Noibai

Mon 9/14

11:10 pm-8:28 pm

2 stops35h 18m

$796

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 5/4

7:00 am-12:35 pm

2 stops39h 35m

Ho Chi Minh City

Fri 5/15

7:30 am-1:11 pm

1 stop19h 41m

$808

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 10/14

7:20 am-11:15 pm

2 stops25h 55m

Ho Chi Minh City

Mon 10/26

11:50 pm-3:25 pm

2 stops29h 35m

$814

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 8/16

1:05 pm-9:35 pm

1 stop18h 30m

Hanoi Noibai

Sun 9/20

11:10 pm-1:37 pm

1 stop28h 27m

$875

SeattleManila

SEA - MNL

SEAMNL

Seattle/Tacoma Intl

Mon 4/20

12:50 pm-10:55 am

1 stop31h 05m

Manila Ninoy Aquino Intl

Wed 5/20

12:20 pm-10:40 am

1 stop37h 20m

$888

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Thu 5/7

7:15 am-11:15 pm

2 stops26h 00m

Ho Chi Minh City

Mon 5/18

7:30 am-1:11 pm

1 stop19h 41m

$914

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 4/29

7:20 am-12:05 am

2 stops50h 45m

Bangkok Suvarnabhumi

Fri 5/8

3:20 pm-10:24 pm

2 stops45h 04m

$941

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from Seattle to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Southeast Asia

What is the cheapest month to book a flight from Seattle to Southeast Asia?

Currently, September is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $719). Flying from Seattle to Southeast Asia in December is currently the most expensive (average of $1,230). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to YJX?

Find hourly flight availability from Seattle to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Southeast Asia as you normally would.

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated April 17, 2026.
Get a feel of what it's like to fly with EVA Air,China Airlines, andSingapore Airlines from Seattle to Southeast Asia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.5

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

Overall

8.5

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

Overall

8.5

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

Overall

8.5

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

Overall

8.5

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

Overall

8.5

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Seattle to Southeast Asia?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Southeast Asia.

  • How long is the flight from Seattle to Southeast Asia?

    Airlines like Korean Air, Delta, and SAUDIA fly from Seattle to Southeast Asia in about 25h 55m. The time it takes to get you to your destination can typically vary by up to 24h 50m. The distance between Seattle and Southeast Asia is about 7410 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Seattle to Southeast Asia one-way?

    The cheapest airline one-way is Singapore Airlines, with whom users have recently found tickets for as low as $243. However, be on the lookout for offers from Korean Air and Asiana Airlines, as they are both options that can get you from Seattle to Southeast Asia for a low price.

  • What are the most popular routes from Seattle to Southeast Asia?

  • Can I find deals for flights from Seattle to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Seattle to Southeast Asia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Southeast Asia.

  • Can I find deals for business class flights from Seattle to Southeast Asia?

    Yes. Cheapflights offers flight deals from Seattle to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Southeast Asia?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $719). Flying from Seattle to Southeast Asia in December is currently the most expensive (average of $1,230). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from Seattle to Southeast Asia

Discover the top 10 airlines that operate flights from Seattle to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$149Average$843FlexibilityNo cancel feeOn-time60%
Korean AirCheapest$418Average$862FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$425Average$1,225FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$440Average$875FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$493Average$767FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$572Average$1,014FlexibilityNo cancel feeOn-time79%
Asiana AirlinesCheapest$586Average$776FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$606Average$913FlexibilityNo cancel feeOn-time72%
ANACheapest$616Average$852FlexibilityNo cancel feeOn-time80%
China AirlinesCheapest$667Average$809FlexibilityNo cancel feeOn-time70%

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