Southeast Asia

$365+ Cheap flights from Washington 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Dec 23 — Dec 301
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Cheap flight deals from Washington to Southeast Asia

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to Southeast Asia (zzYJX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$684
(Gotogate)

One-way from

$365
(CrystalTravel)
From Washington to Southeast Asia
One-way flight from Washington to Southeast Asia

Find flight deals from Washington to Southeast Asia

Cheapest flights from Washington to Southeast Asia
Explore the most affordable flight options available from Washington to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/313:40 pmSEA - BKK
1 stop22h 30mUnited Airlines
Fri 1/39:25 amBKK - SEA
1 stop18h 55mUnited Airlines
Deal found 12/17$871
This Gurufare deal was found by Cheapflights users on 12/17. 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 12/3112:45 pmSEA - BKK
1 stop20h 35mAsiana Airlines
Mon 1/201:50 amBKK - SEA
1 stop24h 05mAsiana Airlines
Deal found 12/17$937
This oojo deal was found by Cheapflights users on 12/18. 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 12/3112:45 pmSEA - SGN
1 stop31h 15mAsiana Airlines
Sun 1/2612:10 pmSGN - SEA
1 stop37h 45mAsiana Airlines
Deal found 12/18$948
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Sat 12/285:00 amSEA - KUL
2 stops37h 20mUnited Airlines
Sun 3/92:15 pmKUL - SEA
1 stop39h 05mUnited Airlines
Deal found 12/18$975
This CrystalTravel deal was found by Cheapflights users on 12/17. 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 12/2912:10 amSEA - BKK
1 stop25h 35mChina Airlines
Thu 3/275:50 pmBKK - SEA
1 stop15h 25mChina Airlines
Deal found 12/17$989
This Orbitz deal was found by Cheapflights users on 12/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2811:00 amSEA - HAN
1 stop33h 10mKorean Air
Mon 1/2011:00 pmHAN - SEA
1 stop29h 19mKorean Air
Deal found 12/18$1,024
This China Airlines deal was found by Cheapflights users on 12/18. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2912:10 amSEA - MNL
1 stop23h 45mChina Airlines
Sat 1/183:15 amMNL - SEA
1 stop31h 00mChina Airlines
Deal found 12/18$1,060
This Gotogate deal was found by Cheapflights users on 12/17. 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 12/2912:10 amSEA - BKK
1 stop25h 35mMultiple Airlines
Thu 2/275:40 pmBKK - SEA
1 stop15h 30mMultiple Airlines
Deal found 12/17$1,068
This oojo deal was found by Cheapflights users on 12/17. 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 12/2812:10 amSEA - SGN
1 stop18h 50mChina Airlines
Tue 3/1811:00 amSGN - SEA
1 stop22h 15mChina Airlines
Deal found 12/17$1,073
This FlightHub deal was found by Cheapflights users on 12/17. 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.
Mon 12/3012:10 amSEA - SGN
1 stop30h 50mEVA Air
Mon 1/271:55 amSGN - SEA
1 stop30h 45mEVA Air
Deal found 12/17$1,078
This Gurufare deal was found by Cheapflights users on 12/18. 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.
Sat 12/283:40 pmSEA - HAN
1 stop40h 25mANA
Sun 1/1912:25 amHAN - SEA
1 stop27h 55mANA
Deal found 12/18$1,079
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 12/2912:05 amSEA - SGN
1 stop25h 45mSTARLUX Airlines
Wed 3/1911:40 amSGN - SEA
1 stop18h 25mSTARLUX Airlines
Deal found 12/16$1,090

Find flights from Washington to Southeast Asia within your budget

Customize your flight search to find flights from Washington 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 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 2/19

12:45 pm-12:10 pm

1 stop32h 25m

Hanoi Noibai

Thu 3/6

1:30 pm-10:55 am

1 stop36h 25m

$684

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 2/10

12:45 pm-12:20 am

1 stop20h 35m

Bangkok Suvarnabhumi

Thu 2/27

11:55 pm-10:55 am

1 stop26h 00m

$734

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 1/27

12:45 pm-12:35 am

1 stop19h 50m

Singapore Changi

Tue 2/4

11:10 pm-10:55 am

1 stop27h 45m

$744

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 1/20

3:45 pm-4:20 pm

1 stop33h 35m

Bangkok Suvarnabhumi

Mon 1/27

3:15 pm-1:20 pm

1 stop37h 05m

$750

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 2/24

11:00 am-9:30 pm

1 stop19h 30m

Bangkok Suvarnabhumi

Sun 3/2

1:00 am-9:00 am

1 stop23h 00m

$756

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 1/19

10:41 am-9:30 pm

1 stop19h 49m

Bangkok Suvarnabhumi

Tue 3/11

1:00 am-2:40 pm

1 stop27h 40m

$760

SeattleManila

SEA - MNL

SEAMNL

Seattle/Tacoma Intl

Sun 1/19

3:45 pm-1:35 pm

1 stop29h 50m

Manila Ninoy Aquino Intl

Wed 1/29

2:50 pm-1:20 pm

1 stop14h 30m

$760

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Tue 4/29

1:10 am-4:20 pm

1 stop25h 10m

Ho Chi Minh City

Sun 5/25

5:30 pm-7:30 pm

1 stop16h 00m

$761

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 1/14

10:41 am-9:40 pm

1 stop19h 59m

Hanoi Noibai

Mon 1/20

11:00 pm-1:19 pm

1 stop29h 19m

$764

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 3/20

12:00 pm-9:40 pm

1 stop19h 40m

Hanoi Noibai

Mon 3/31

11:10 pm-10:50 am

1 stop25h 40m

$768

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Washington 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.

Travel insights for flights from Washington to Southeast Asia

Get recent, data-driven insights about flights from Washington to Southeast Asia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from State of Washington to Southeast Asia?

Currently, September is the cheapest month in which you can book a flight from State of Washington to Southeast Asia (average of $979). Flying from State of Washington to Southeast Asia in June is currently the most expensive (average of $1,585). 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 WA to YJX?

Find hourly flight availability from Washington 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 18, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington 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 December 18, 2024.
See what other customers who have flown with ANA, China Airlines and United Airlines from Washington to Southeast Asia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Comfort

9.0

Food

8.9

Boarding

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

9.1
Wonderful
129 reviews
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Comfort

9.0

Food

8.9

Boarding

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

8.4
Very good
1,269 reviews
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Comfort

9.0

Food

8.9

Boarding

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

8.4
Very good
1,018 reviews
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Comfort

9.0

Food

8.9

Boarding

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

8.4
Very good
839 reviews
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Comfort

9.0

Food

8.9

Boarding

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

8.3
Very good
1,443 reviews
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Comfort

9.0

Food

8.9

Boarding

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Related info for your journey

Find useful and relevant information for your journey from Washington 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 are the cheapest airlines to fly from State of Washington to Southeast Asia one-way?

    For one-way options, check prices for Asiana Airlines. According to our data, you can fly for as low as $365. Users have also found prices from $421 and $432 on ANA and China Airlines, respectively.

  • Can I find deals for flights from Washington to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Washington to Southeast Asia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Southeast Asia.

  • Can I find deals for business class flights from Washington to Southeast Asia?

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Southeast Asia?

    Currently, September is the cheapest month in which you can book a flight from State of Washington to Southeast Asia (average of $979). Flying from State of Washington to Southeast Asia in June is currently the most expensive (average of $1,585). 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 Washington to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Washington to Southeast Asia

Discover the top 10 airlines that operate flights from Washington 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 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$623Average$1,029FlexibilityNo cancel feeOn-time81%
STARLUX AirlinesCheapest$657Average$963FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$679Average$913FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$714Average$1,200FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$721Average$1,231FlexibilityNo cancel feeOn-time69%
Philippine AirlinesCheapest$728Average$837FlexibilityNo cancel feeOn-time60%
China AirlinesCheapest$735Average$891FlexibilityNo cancel feeOn-time70%
China EasternCheapest$755Average$878FlexibilityNo cancel feeOn-time62%
ANACheapest$764Average$1,131FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$790Average$1,126FlexibilityNo cancel feeOn-time79%
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