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Southeast Asia

$281+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Aug 31 — Sep 71
Sun 8/31
Sun 9/7
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 August 26, 2025.

Round-trip from

$515
(oojo)

One-way from

$281
(FlightHub)

Popular in

December

Cheapest in

April

Average price

$855
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. 9% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 26, 2025.

This Trip.com deal was found by Cheapflights users on 8/25. 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 10/1211:35 pmSEA - KUL
1 stop24h 50mPhilippine Airlines
Sat 10/252:25 amKUL - SEA
1 stop32h 10mPhilippine Airlines
Deal found 8/25$636
This oojo deal was found by Cheapflights users on 8/24. 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 10/2310:15 amSEA - SIN
Nonstop16h 20mSingapore Airlines
Fri 10/319:00 amSIN - SEA
Nonstop14h 10mSingapore Airlines
Deal found 8/24$642
This oojo deal was found by Cheapflights users on 8/25. 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 11/28:45 amSEA - HKT
1 stop33h 30mSingapore Airlines
Fri 11/2111:05 amHKT - SEA
1 stop35h 05mSingapore Airlines
Deal found 8/25$642
This oojo deal was found by Cheapflights users on 8/25. 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 10/269:45 amSEA - HAN
1 stop41h 40mSingapore Airlines
Fri 11/76:30 pmHAN - SEA
1 stop27h 40mSingapore Airlines
Deal found 8/25$644
This oojo deal was found by Cheapflights users on 8/26. 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.
Fri 11/288:45 amSEA - HKT
1 stop38h 20mSingapore Airlines
Fri 12/58:40 amHKT - SEA
1 stop37h 30mSingapore Airlines
Deal found 8/26$644
This Trip.com deal was found by Cheapflights users on 8/25. 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 9/1411:35 pmSEA - SIN
1 stop28h 20mPhilippine Airlines
Tue 9/308:00 pmSIN - SEA
1 stop38h 15mPhilippine Airlines
Deal found 8/25$646
This oojo deal was found by Cheapflights users on 8/25. 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.
Tue 10/217:00 amSEA - SIN
1 stop21h 10mSingapore Airlines
Thu 10/309:00 amSIN - SEA
Nonstop14h 10mSingapore Airlines
Deal found 8/25$648
This oojo deal was found by Cheapflights users on 8/25. 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 10/52:15 pmSEA - HAN
1 stop32h 00mAsiana Airlines
Sat 10/181:25 pmHAN - SEA
1 stop37h 05mAsiana Airlines
Deal found 8/25$661
This oojo deal was found by Cheapflights users on 8/23. 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.
Tue 10/2110:15 amSEA - HKT
1 stop19h 20mSingapore Airlines
Fri 11/76:00 pmHKT - SEA
1 stop28h 10mSingapore Airlines
Deal found 8/23$661
This oojo deal was found by Cheapflights users on 8/25. 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.
Tue 11/1112:10 amSEA - HAN
1 stop30h 50mAsiana Airlines
Mon 11/2411:30 pmHAN - SEA
1 stop29h 25mAsiana Airlines
Deal found 8/25$662
This FlightHub deal was found by Cheapflights users on 8/25. 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 9/182:15 pmSEA - HAN
1 stop17h 45mAsiana Airlines
Fri 9/261:25 pmHAN - SEA
1 stop37h 05mAsiana Airlines
Deal found 8/25$666
This oojo deal was found by Cheapflights users on 8/25. 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 stop30h 55mAsiana Airlines
Sat 2/2811:55 pmBKK - SEA
1 stop29h 00mAsiana Airlines
Deal found 8/25$668

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 August 26, 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

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Thu 1/22

8:45 am-7:50 am

1 stop32h 05m

Phuket City

Sat 1/31

8:40 am-7:10 am

1 stop37h 30m

$515

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Fri 1/30

8:45 am-2:05 pm

1 stop38h 20m

Phuket City

Fri 2/6

8:15 pm-7:10 am

1 stop25h 55m

$517

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Thu 2/5

8:45 am-2:05 pm

1 stop38h 20m

Phuket City

Thu 2/12

10:05 am-7:10 am

1 stop36h 05m

$517

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Sat 1/31

8:45 am-9:15 am

1 stop33h 30m

Phuket City

Sat 2/7

8:40 am-7:10 am

1 stop37h 30m

$517

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Tue 1/27

8:45 am-1:30 am

1 stop24h 45m

Cebu City Mactan Intl

Mon 2/16

2:35 am-7:10 am

1 stop20h 35m

$530

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Tue 2/10

8:45 am-2:50 pm

1 stop38h 05m

Cebu City Mactan Intl

Mon 2/16

2:35 am-7:10 am

1 stop20h 35m

$532

SeattleKuala Lumpur

SEA - KUL

SEAKUL

Seattle/Tacoma Intl

Sun 10/12

11:35 pm-3:25 pm

1 stop24h 50m

Kuala Lumpur Intl

Sat 10/25

2:25 am-7:35 pm

1 stop32h 10m

$636

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 1/5

12:10 am-1:10 pm

1 stop22h 00m

Hanoi Noibai

Thu 1/22

11:30 pm-1:55 pm

1 stop29h 25m

$660

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 10/5

2:15 pm-12:15 pm

1 stop32h 00m

Hanoi Noibai

Sat 10/18

1:25 pm-12:30 pm

1 stop37h 05m

$661

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Tue 1/27

8:45 am-1:30 am

1 stop24h 45m

Cebu City Mactan Intl

Mon 2/16

2:35 am-4:55 pm

2 stops30h 20m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/25

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, September is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $931). Flying from Seattle to Southeast Asia in December is currently the most expensive (average of $1,546). 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 August 26, 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.

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 August 26, 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
8.4
Very good
1,234 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very good
1,234 reviews
EVA Air
8.4
Very good
1,234 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Korean Air
8.4
Very good
1,133 reviews
EVA Air
8.4
Very good
1,234 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
China Airlines
8.3
Very good
765 reviews
EVA Air
8.4
Very good
1,234 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Asiana Airlines
8.2
Very good
477 reviews
EVA Air
8.4
Very good
1,234 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Philippine Airlines
7.2
Good
905 reviews
EVA Air
8.4
Very good
1,234 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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 Singapore Airlines, Philippine Airlines, and Asiana Airlines fly from Seattle to Southeast Asia in about 22h. The time it takes to get you to your destination can typically vary by up to 10h 05m. The distance between Seattle and Southeast Asia is about 6827 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 Philippine Airlines, with whom users have recently found tickets for as low as $307. However, be on the lookout for offers from Asiana Airlines and Singapore 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, September is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $931). Flying from Seattle to Southeast Asia in December is currently the most expensive (average of $1,546). 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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Portland to Manila flights
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Portland to Hong Kong flights
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Seattle to Malé flights
Spokane to Narita flights
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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 August 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$433Average$967FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$533Average$982FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$588Average$960FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$622Average$1,910FlexibilityNo cancel feeOn-time72%
Asiana AirlinesCheapest$629Average$848FlexibilityNo cancel feeOn-time76%
Philippine AirlinesCheapest$675Average$839FlexibilityNo cancel feeOn-time60%
Korean AirCheapest$677Average$904FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$684Average$1,095FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$687Average$935FlexibilityNo cancel feeOn-time79%
ANACheapest$688Average$899FlexibilityNo cancel feeOn-time80%

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