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Southeast Asia

$297+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This oojo deal was found by Cheapflights users on 1/28. 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 8/2710:15 am
SEA
-
HAN
1 stop41h 25m
Singapore Airlines
Thu 9/2412:40 pm
HAN
-
SEA
1 stop34h 05m
Singapore Airlines
Deal found 1/28$517
This FlightHub deal was found by Cheapflights users on 1/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:15 am
SEA
-
DPS
1 stop22h 55m
Singapore Airlines
Mon 5/259:40 pm
DPS
-
SEA
1 stop26h 05m
Singapore Airlines
Deal found 1/26$547
This FlightHub deal was found by Cheapflights users on 1/28. 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 4/2310:15 am
SEA
-
DPS
1 stop22h 55m
Singapore Airlines
Thu 4/3012:10 pm
DPS
-
SEA
1 stop35h 35m
Singapore Airlines
Deal found 1/28$548
This Gurufare deal was found by Cheapflights users on 1/26. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:15 am
SEA
-
DPS
1 stop31h 40m
Singapore Airlines
Mon 11/210:30 am
DPS
-
SEA
1 stop36h 40m
Singapore Airlines
Deal found 1/26$549
This FlightHub deal was found by Cheapflights users on 1/28. 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.
Fri 4/1010:15 am
SEA
-
DPS
1 stop31h 40m
Singapore Airlines
Mon 4/209:40 pm
DPS
-
SEA
1 stop26h 05m
Singapore Airlines
Deal found 1/28$550
This Gurufare deal was found by Cheapflights users on 1/27. 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.
Fri 4/2410:15 am
SEA
-
CGK
1 stop37h 10m
Singapore Airlines
Tue 5/125:25 am
CGK
-
SEA
1 stop17h 20m
Singapore Airlines
Deal found 1/27$551
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Thu 9/310:15 am
SEA
-
HAN
1 stop41h 25m
Singapore Airlines
Thu 9/1712:40 pm
HAN
-
SEA
1 stop34h 05m
Singapore Airlines
Deal found 1/27$554
This FlightHub deal was found by Cheapflights users on 1/28. 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 4/1610:15 am
SEA
-
DPS
1 stop22h 55m
Singapore Airlines
Mon 4/279:40 pm
DPS
-
SEA
1 stop26h 05m
Singapore Airlines
Deal found 1/28$555
This oojo deal was found by Cheapflights users on 1/28. 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 9/110:15 am
SEA
-
CGK
1 stop30h 45m
Singapore Airlines
Wed 9/306:05 pm
CGK
-
SEA
1 stop28h 40m
Singapore Airlines
Deal found 1/28$559
This oojo deal was found by Cheapflights users on 1/28. 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 4/1410:15 am
SEA
-
CGK
1 stop32h 10m
Singapore Airlines
Tue 4/285:25 am
CGK
-
SEA
1 stop17h 20m
Singapore Airlines
Deal found 1/28$560
This oojo deal was found by Cheapflights users on 1/27. 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.
Thu 4/1610:15 am
SEA
-
DPS
1 stop22h 55m
Singapore Airlines
Thu 4/238:00 pm
DPS
-
SEA
1 stop27h 45m
Singapore Airlines
Deal found 1/27$572
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Sat 4/1810:15 am
SEA
-
KUL
1 stop18h 30m
Singapore Airlines
Sat 4/252:35 pm
KUL
-
SEA
1 stop33h 10m
Singapore Airlines
Deal found 1/27$581

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$547
(FlightHub)

One-way from

$297
(FlightHub)

Popular in

June

Cheapest in

February

Average price

$785
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 ($182 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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 4/18

10:15 am-9:10 pm

1 stop19h 55m

Kuala Lumpur Intl

Sat 4/25

4:35 pm-8:45 am

1 stop31h 10m

$581

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Tue 4/7

7:25 am-11:30 pm

2 stops25h 05m

Cebu City Mactan Intl

Tue 4/21

1:00 am-10:40 am

1 stop24h 40m

$626

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Mon 4/27

12:50 pm-11:30 pm

1 stop19h 40m

Cebu City Mactan Intl

Tue 5/5

1:00 am-2:51 pm

2 stops28h 51m

$632

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 3/11

7:25 am-9:45 pm

2 stops24h 20m

Hanoi Noibai

Mon 3/16

11:05 pm-5:09 pm

2 stops32h 04m

$646

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Sun 3/8

12:00 pm-10:20 pm

1 stop19h 20m

Cebu City Mactan Intl

Tue 3/10

12:15 am-10:00 am

1 stop24h 45m

$660

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sat 3/7

12:10 am-10:25 pm

1 stop31h 15m

Hanoi Noibai

Fri 3/13

1:30 pm-2:55 pm

1 stop15h 25m

$670

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Fri 3/6

12:10 am-10:25 pm

1 stop31h 15m

Hanoi Noibai

Fri 3/13

1:30 pm-2:55 pm

1 stop15h 25m

$670

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Sun 4/19

10:15 am-2:50 pm

1 stop37h 35m

Cebu City Mactan Intl

Wed 5/6

12:55 pm-8:45 am

1 stop34h 50m

$670

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Fri 4/17

10:15 am-2:50 pm

1 stop37h 35m

Cebu City Mactan Intl

Mon 5/4

2:00 am-8:45 am

1 stop21h 45m

$672

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Sat 4/18

12:50 pm-11:30 pm

1 stop19h 40m

Cebu City Mactan Intl

Tue 5/5

1:00 am-5:16 pm

2 stops31h 16m

$672

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 $512). Flying from Seattle to Southeast Asia in December is currently the most expensive (average of $681). 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 January 29, 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 January 29, 2026.
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
1,334 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
EVA Air
8.4
Very good
1,334 reviews
EVA Air
8.4
Very good
1,334 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Korean Air
8.4
Very good
1,188 reviews
EVA Air
8.4
Very good
1,334 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
China Airlines
8.3
Very good
802 reviews
EVA Air
8.4
Very good
1,334 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Asiana Airlines
8.1
Very good
501 reviews
EVA Air
8.4
Very good
1,334 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Philippine Airlines
7.3
Good
957 reviews
EVA Air
8.4
Very good
1,334 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.

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, Korean Air, and Asiana Airlines fly from Seattle to Southeast Asia in about 19h 55m. The time it takes to get you to your destination can typically vary by up to 11h 20m. The distance between Seattle and Southeast Asia is about 8063 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 Korean Air, with whom users have recently found tickets for as low as $262. However, be on the lookout for offers from Singapore Airlines 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?

    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 $512). Flying from Seattle to Southeast Asia in December is currently the most expensive (average of $681). 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

Browse thousands of different options on Cheapflights for your next trip

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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$154Average$746FlexibilityNo cancel feeOn-time60%
Korean AirCheapest$418Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$440Average$872FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$509Average$863FlexibilityNo cancel feeOn-time81%
DeltaCheapest$611Average$944FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$615Average$776FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$622Average$868FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$660Average$1,179FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$675Average$891FlexibilityNo cancel feeOn-time70%
ANACheapest$683Average$854FlexibilityNo cancel feeOn-time80%

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