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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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
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 October 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$556
(oojo)

One-way from

$265
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$797
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. 15% potential increase in price ($164 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 October 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 October 27, 2025.

This oojo deal was found by Cheapflights users on 10/27. 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 11/99:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Tue 11/182:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 10/27$659
This FlightHub deal was found by Cheapflights users on 10/27. 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 11/259:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Wed 12/242:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 10/27$665
This Gurufare deal was found by Cheapflights users on 10/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/259:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Mon 12/222:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 10/27$672
This Gotogate deal was found by Cheapflights users on 10/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2712:10 amSEA - BKK
1 stop30h 50mAsiana Airlines
Sat 1/1712:20 pmBKK - SEA
1 stop16h 35mAsiana Airlines
Deal found 10/25$673
This FlightHub deal was found by Cheapflights users on 10/25. 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.
Tue 11/259:30 pmSEA - BKK
1 stop34h 30mPhilippine Airlines
Thu 12/41:20 pmBKK - SEA
1 stop20h 20mPhilippine Airlines
Deal found 10/25$675
This oojo deal was found by Cheapflights users on 10/26. 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.
Tue 10/2812:10 amSEA - MNL
1 stop31h 20mAsiana Airlines
Wed 3/2512:05 pmMNL - SEA
1 stop17h 50mAsiana Airlines
Deal found 10/26$682
This Gurufare deal was found by Cheapflights users on 10/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:30 pmSEA - BKK
1 stop34h 30mPhilippine Airlines
Tue 11/1811:50 pmBKK - SEA
1 stop33h 50mPhilippine Airlines
Deal found 10/27$683
This FlightHub deal was found by Cheapflights users on 10/25. 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.
Sun 10/2612:10 amSEA - MNL
1 stop31h 20mAsiana Airlines
Tue 11/1812:05 pmMNL - SEA
1 stop17h 50mAsiana Airlines
Deal found 10/25$684
This KAYAK deal was found by Cheapflights users on 10/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:30 pmSEA - BKK
1 stop34h 30mPhilippine Airlines
Tue 12/21:20 pmBKK - SEA
1 stop20h 20mPhilippine Airlines
Deal found 10/26$685
This FlightHub deal was found by Cheapflights users on 10/25. 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.
Sat 11/1512:10 amSEA - SGN
1 stop25h 40mChina Airlines
Sat 12/2011:00 amSGN - SEA
1 stop22h 10mChina Airlines
Deal found 10/25$686
This Asiana Airlines deal was found by Cheapflights users on 10/25. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:10 amSEA - BKK
1 stop30h 50mAsiana Airlines
Sat 12/611:55 pmBKK - SEA
1 stop29h 00mAsiana Airlines
Deal found 10/25$687
This Gotogate deal was found by Cheapflights users on 10/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:30 pmSEA - KUL
1 stop21h 15mPhilippine Airlines
Tue 11/2511:45 amKUL - SEA
1 stop22h 55mPhilippine Airlines
Deal found 10/27$687

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 October 27, 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

SeattleKuala Lumpur

SEA - KUL

SEAKUL

Seattle/Tacoma Intl

Sat 1/17

8:45 am-8:15 am

1 stop31h 30m

Kuala Lumpur Intl

Wed 1/28

5:00 pm-7:10 am

1 stop30h 10m

$605

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sat 11/29

11:15 am-12:45 am

1 stop22h 30m

Bangkok Suvarnabhumi

Wed 12/24

2:05 am-1:20 pm

1 stop26h 15m

$694

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 3/2

12:10 am-10:50 pm

1 stop31h 40m

Ho Chi Minh City

Fri 3/20

12:10 am-2:55 pm

1 stop28h 45m

$694

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 3/1

11:00 am-12:50 pm

1 stop34h 50m

Ho Chi Minh City

Tue 3/31

1:55 pm-10:40 am

1 stop34h 45m

$694

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 3/15

12:10 am-10:50 pm

1 stop32h 40m

Ho Chi Minh City

Wed 3/18

12:10 pm-2:55 pm

1 stop16h 45m

$694

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 4/5

12:10 am-11:00 am

1 stop20h 50m

Ho Chi Minh City

Sun 4/12

12:10 am-2:55 pm

1 stop28h 45m

$694

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Tue 11/18

3:45 pm-10:20 pm

2 stops38h 35m

Cebu City Mactan Intl

Mon 11/24

12:15 am-9:00 am

1 stop24h 45m

$695

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Wed 11/5

7:10 am-10:20 pm

2 stops23h 10m

Cebu City Mactan Intl

Mon 11/17

12:15 am-9:00 am

1 stop24h 45m

$695

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Wed 11/5

7:10 am-10:20 pm

2 stops23h 10m

Cebu City Mactan Intl

Tue 11/18

12:15 am-9:00 am

1 stop24h 45m

$695

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 12/3

11:00 am-12:45 am

1 stop22h 45m

Bangkok Suvarnabhumi

Sun 12/21

9:40 am-9:00 am

1 stop38h 20m

$698

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

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, May is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $514). Flying from Seattle to Southeast Asia in July is currently the most expensive (average of $717). 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 October 27, 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 morning, which can drop the price by up to 18% 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 Sunday at noon 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 October 27, 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
1,261 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

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
1,261 reviews
EVA Air
8.4
Very good
1,261 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

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
1,153 reviews
EVA Air
8.4
Very good
1,261 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

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
776 reviews
EVA Air
8.4
Very good
1,261 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

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
483 reviews
EVA Air
8.4
Very good
1,261 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

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
7.3
Good
925 reviews
EVA Air
8.4
Very good
1,261 reviews

Boarding

8.4

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

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, Delta, and Asiana Airlines fly from Seattle to Southeast Asia in about 22h 30m. The time it takes to get you to your destination can typically vary by up to 9h 10m. The distance between Seattle and Southeast Asia is about 7443 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 $265. However, be on the lookout for offers from Philippine Airlines and Delta, 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, May is the cheapest month in which you can book a flight from Seattle to Southeast Asia (average of $514). Flying from Seattle to Southeast Asia in July is currently the most expensive (average of $717). 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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$433Average$980FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$459Average$884FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$509Average$851FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$544Average$791FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$620Average$824FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$622Average$910FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$661Average$1,071FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$670Average$880FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$687Average$948FlexibilityNo cancel feeOn-time79%
ANACheapest$688Average$905FlexibilityNo cancel feeOn-time80%

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