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Southeast Asia

$337+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap 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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$727
(oojo)

One-way from

$405
(United Airlines)

Popular in

December

Cheapest in

March

Average price

$961
Provider with most accurate pricing for Seattle/Tacoma Intl-Manila Ninoy Aquino Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Manila Ninoy Aquino Intl flights.
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From Seattle/Tacoma Intl to Southeast Asia
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One-way flight from Seattle/Tacoma Intl to Southeast Asia
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Highest demand for flights based on searches. 8% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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 May 1, 2025.

This oojo deal was found by Cheapflights users on 4/30. 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.
Mon 9/12:15 pmSEA - CNX
1 stop19h 25mAsiana Airlines
Mon 9/1512:45 amCNX - SEA
1 stop25h 45mAsiana Airlines
Deal found 4/30$726
This oojo deal was found by Cheapflights users on 4/30. 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.
Mon 8/251:15 amSEA - CRK
1 stop26h 40mSTARLUX Airlines
Tue 9/3010:00 amCRK - SEA
1 stop21h 10mSTARLUX Airlines
Deal found 4/30$727
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:23 pmSEA - SGN
2 stops40h 32mUnited Airlines
Tue 11/46:00 amSGN - SEA
3 stops29h 49mUnited Airlines
Deal found 4/30$731
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/141:45 pmSEA - SGN
2 stops42h 10mANA
Wed 10/1511:15 pmSGN - SEA
1 stop29h 10mANA
Deal found 4/30$735
This oojo deal was found by Cheapflights users on 5/1. 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 10/231:10 amSEA - SGN
1 stop18h 30mChina Airlines
Sun 11/1611:00 amSGN - SEA
1 stop22h 15mChina Airlines
Deal found 5/1$736
This CrystalTravel deal was found by Cheapflights users on 4/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/32:15 pmSEA - SGN
1 stop18h 30mAsiana Airlines
Sat 5/2412:05 amSGN - SEA
1 stop26h 25mAsiana Airlines
Deal found 4/30$739
This ANA deal was found by Cheapflights users on 4/29. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:15 amSEA - SGN
2 stops28h 00mMultiple Airlines
Sun 5/1811:15 pmSGN - SEA
1 stop29h 10mMultiple Airlines
Deal found 4/29$746
This CrystalTravel deal was found by Cheapflights users on 4/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/183:15 pmSEA - MNL
2 stops28h 40mKorean Air
Thu 11/2011:20 pmMNL - SEA
1 stop25h 40mKorean Air
Deal found 4/30$746
This ScholarTrip deal was found by Cheapflights users on 4/30. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2410:15 amSEA - MNL
1 stop34h 35mSingapore Airlines
Sun 11/95:05 pmMNL - SEA
1 stop54h 05mSingapore Airlines
Deal found 4/30$747
This STARLUX Airlines deal was found by Cheapflights users on 4/30. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/131:15 amSEA - SGN
1 stop19h 00mSTARLUX Airlines
Fri 10/36:25 pmSGN - SEA
1 stop35h 45mSTARLUX Airlines
Deal found 4/30$752
This CrystalTravel deal was found by Cheapflights users on 4/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/172:30 pmSEA - MNL
1 stop29h 25mAsiana Airlines
Sun 8/3112:05 pmMNL - SEA
1 stop15h 40mAsiana Airlines
Deal found 4/30$755
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/812:40 pmSEA - SGN
1 stop20h 35mDelta
Wed 6/1811:45 pmSGN - SEA
1 stop27h 55mDelta
Deal found 4/29$760

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 May 1, 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

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 10/15

3:23 pm-9:55 pm

2 stops40h 32m

Ho Chi Minh City

Tue 11/4

6:00 am-8:49 pm

3 stops29h 49m

$731

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 9/14

1:45 pm-9:55 pm

2 stops42h 10m

Ho Chi Minh City

Wed 10/15

11:15 pm-2:25 pm

1 stop29h 10m

$735

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Thu 10/23

1:10 am-9:40 am

1 stop18h 30m

Ho Chi Minh City

Sun 11/16

11:00 am-6:15 pm

1 stop22h 15m

$736

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 10/15

2:15 pm-11:05 am

1 stop30h 50m

Ho Chi Minh City

Wed 2/18

12:10 pm-12:35 pm

1 stop39h 25m

$739

SeattleManila

SEA - MNL

SEAMNL

Seattle/Tacoma Intl

Thu 9/18

3:15 pm-10:55 am

2 stops28h 40m

Manila Ninoy Aquino Intl

Thu 11/20

11:20 pm-9:00 am

1 stop25h 40m

$746

SeattleManila

SEA - MNL

SEAMNL

Seattle/Tacoma Intl

Fri 10/24

10:15 am-11:50 am

1 stop34h 35m

Manila Ninoy Aquino Intl

Sun 11/9

5:05 pm-7:10 am

1 stop54h 05m

$747

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sat 9/13

1:15 am-10:15 am

1 stop19h 00m

Ho Chi Minh City

Fri 10/3

6:25 pm-4:10 pm

1 stop35h 45m

$752

SeattleManila

SEA - MNL

SEAMNL

Seattle/Tacoma Intl

Sun 8/17

2:30 pm-10:55 am

1 stop29h 25m

Manila Ninoy Aquino Intl

Sun 8/31

12:05 pm-12:45 pm

1 stop15h 40m

$755

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Tue 9/9

6:45 am-9:55 pm

2 stops25h 10m

Ho Chi Minh City

Mon 9/22

7:00 am-8:54 pm

3 stops27h 54m

$756

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Sun 8/31

10:15 am-2:45 pm

1 stop37h 30m

Cebu City Mactan Intl

Sun 9/28

3:35 pm-8:53 am

2 stops32h 18m

$760

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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, March is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $955). Flying from Seattle to Southeast Asia in December is currently the most expensive (average of $1,574). 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 May 1, 2025.

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.

Rainfall in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Asia ranges from 0.4 - 15.7 inches per month. July is typically the wettest month, when rainfall can reach 15.7 in. February is typically the driest time to visit Southeast Asia when rainfall is around 0.4 in.

Temperature in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

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 May 1, 2025.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air and Korean Air from Seattle to Southeast Asia by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Overall

9.1

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
161 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Overall

9.1

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
EVA Air
8.4
Very good
1,186 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Overall

9.1

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Korean Air
8.4
Very good
1,068 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Overall

9.1

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very good
1,464 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Overall

9.1

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very good
732 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Overall

9.1

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

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.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $405. However, be on the lookout for offers from STARLUX Airlines and Korean Air, 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, March is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $955). Flying from Seattle to Southeast Asia in December is currently the most expensive (average of $1,574). 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.

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$441Average$1,103FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$604Average$1,028FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$631Average$837FlexibilityNo cancel feeOn-time76%
Philippine AirlinesCheapest$688Average$981FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$691Average$1,029FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$695Average$939FlexibilityNo cancel feeOn-time81%
ANACheapest$705Average$991FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$716Average$1,125FlexibilityNo cancel feeOn-time79%
China AirlinesCheapest$719Average$880FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$728Average$1,132FlexibilityNo cancel feeOn-time67%

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