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Southeast Asia

$265+ 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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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 December 16, 2025.

This FlightHub deal was found by Cheapflights users on 12/16. 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.
Tue 12/3012:10 amSEA - HKT
1 stop30h 25mAsiana Airlines
Sat 2/2810:55 pmHKT - SEA
1 stop30h 00mAsiana Airlines
Deal found 12/16$713
This FlightHub deal was found by Cheapflights users on 12/15. 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.
Tue 12/303:40 pmSEA - BKK
1 stop23h 50mANA
Fri 1/162:25 pmBKK - SEA
1 stop37h 55mANA
Deal found 12/15$825
This Air Canada deal was found by Cheapflights users on 12/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:50 amSEA - SIN
1 stop33h 10mAir Canada
Thu 1/228:50 amSIN - SEA
1 stop26h 26mAir Canada
Deal found 12/15$903
This FlightHub deal was found by Cheapflights users on 12/15. 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.
Tue 12/303:40 pmSEA - BKK
1 stop23h 50mANA
Fri 1/307:10 amBKK - SEA
2 stops23h 34mANA
Deal found 12/15$907
This Trip.com deal was found by Cheapflights users on 12/14. 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 12/319:30 pmSEA - MNL
Nonstop14h 35mMultiple Airlines
Sat 1/3111:50 amMNL - SEA
1 stop19h 15mMultiple Airlines
Deal found 12/14$907
This Trip.com deal was found by Cheapflights users on 12/15. 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 12/319:30 pmSEA - MNL
Nonstop14h 35mPhilippine Airlines
Wed 2/410:40 pmMNL - SEA
Nonstop12h 00mPhilippine Airlines
Deal found 12/15$919
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:30 pmSEA - MNL
Nonstop14h 35mMultiple Airlines
Wed 2/411:50 amMNL - SEA
1 stop19h 15mMultiple Airlines
Deal found 12/15$932
This oojo deal was found by Cheapflights users on 12/16. 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 12/288:45 amSEA - MNL
1 stop22h 05mSingapore Airlines
Wed 1/2812:45 pmMNL - SEA
1 stop34h 25mSingapore Airlines
Deal found 12/16$949
This oojo deal was found by Cheapflights users on 12/16. 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 12/2812:10 amSEA - BKK
1 stop20h 20mEVA Air
Mon 3/22:15 amBKK - SEA
1 stop30h 55mEVA Air
Deal found 12/16$966
This Ovago deal was found by Cheapflights users on 12/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:45 pmSEA - MNL
1 stop29h 50mANA
Sat 1/312:50 pmMNL - SEA
2 stops22h 22mANA
Deal found 12/14$971
This oojo deal was found by Cheapflights users on 12/16. 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.
Sat 12/2712:10 amSEA - BKK
1 stop21h 55mChina Airlines
Sat 2/282:05 pmBKK - SEA
1 stop19h 05mChina Airlines
Deal found 12/16$999
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:40 pmSEA - MNL
2 stops37h 10mMultiple Airlines
Thu 1/2911:50 amMNL - SEA
1 stop19h 15mMultiple Airlines
Deal found 12/16$1,033

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 December 16, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$592
(FlightHub)

One-way from

$265
(oojo)

Popular in

June

Cheapest in

February

Average price

$1,276
Provider with most accurate pricing for Seattle/Tacoma Intl-Manila Ninoy Aquino Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Manila Ninoy Aquino Intl flights.
Search Deals
From Seattle/Tacoma Intl to Southeast Asia
Search Deals
One-way flight from Seattle/Tacoma Intl to Southeast Asia
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($175 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 16, 2025.
Use the filters below to find and compare flights from Seattle to Southeast Asia that are best for you.

Fly from

Seattle

Fly to

Southeast Asia

Route

Depart

Return

Price

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Sat 2/21

12:10 am-12:45 am

1 stop32h 35m

Cebu City Mactan Intl

Tue 2/24

1:50 am-1:55 pm

1 stop28h 05m

$659

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Sat 1/31

12:10 am-12:45 am

1 stop32h 35m

Cebu City Mactan Intl

Tue 2/3

1:50 am-1:55 pm

1 stop28h 05m

$659

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Fri 1/16

12:10 am-12:45 am

1 stop32h 35m

Cebu City Mactan Intl

Sat 1/24

1:50 am-1:55 pm

1 stop28h 05m

$660

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 1/18

5:40 pm-11:20 pm

2 stops38h 40m

Ho Chi Minh City

Thu 1/29

8:00 am-9:00 am

1 stop16h 00m

$675

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 1/19

7:30 pm-10:55 pm

3 stops36h 25m

Ho Chi Minh City

Mon 2/2

6:00 am-12:56 am

3 stops33h 56m

$675

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 2/8

7:15 am-11:20 pm

2 stops25h 05m

Ho Chi Minh City

Sun 3/8

2:05 pm-9:00 am

1 stop33h 55m

$675

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Thu 1/15

9:25 am-10:55 pm

2 stops46h 30m

Ho Chi Minh City

Thu 1/29

6:00 am-9:12 pm

3 stops30h 12m

$679

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 1/18

12:35 pm-10:55 pm

3 stops43h 20m

Ho Chi Minh City

Fri 1/30

6:00 am-3:44 pm

3 stops24h 44m

$683

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Fri 1/16

5:12 pm-10:55 pm

2 stops38h 43m

Ho Chi Minh City

Thu 1/29

6:00 am-4:29 pm

2 stops25h 29m

$685

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sat 1/24

7:15 am-10:25 pm

2 stops24h 10m

Ho Chi Minh City

Mon 2/9

2:05 pm-4:54 pm

2 stops41h 49m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 60 results
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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, February is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $513). Flying from Seattle to Southeast Asia in July is currently the most expensive (average of $689). 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 December 16, 2025.

When flying from Seattle to Southeast Asia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight in the afternoon.

What is the cheapest day to fly from Seattle to Southeast Asia?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Southeast Asia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Southeast Asia flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 16, 2025.
Get a feel of what it's like to fly with EVA Air, Korean Air, and China 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.
EVA Air
8.5
Very good
1,297 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
EVA Air
8.5
Very good
1,297 reviews
EVA Air
8.5
Very good
1,297 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Korean Air
8.4
Very good
1,186 reviews
EVA Air
8.5
Very good
1,297 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
China Airlines
8.3
Very good
792 reviews
EVA Air
8.5
Very good
1,297 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Asiana Airlines
8.2
Very good
493 reviews
EVA Air
8.5
Very good
1,297 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Philippine Airlines
7.3
Good
942 reviews
EVA Air
8.5
Very good
1,297 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

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 Asiana Airlines, Korean Air, and United Airlines fly from Seattle to Southeast Asia in about 32h 35m. The time it takes to get you to your destination can typically vary by up to 6h 05m. The distance between Seattle and Southeast Asia is about 6753 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 $275. However, be on the lookout for offers from Asiana Airlines and Philippine 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?

    The most popular flight routes from Seattle to Southeast Asia are Seattle/Tacoma Intl - Bangkok Suvarnabhumi, Seattle/Tacoma Intl - Manila Ninoy Aquino Intl and Seattle/Tacoma Intl - Ho Chi Minh City.

  • 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, February is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $513). Flying from Seattle to Southeast Asia in July is currently the most expensive (average of $689). 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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Alternative routes for Seattle to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$433Average$950FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$459Average$892FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$474Average$850FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$509Average$813FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$544Average$850FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$611Average$775FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$622Average$849FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$661Average$1,105FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$683Average$899FlexibilityNo cancel feeOn-time70%
Japan AirlinesCheapest$687Average$957FlexibilityNo cancel feeOn-time79%

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