Southeast Asia

$412+ Cheap flights from Dulles Intl (IAD) 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BKK
Jul 28 — Aug 41
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Cheap flight deals from Dulles Intl to Southeast Asia

Keep the following information in mind while searching for Dulles Intl to Southeast Asia flight deals. Data was last updated July 23, 2025.

Round-trip from

$796
(oojo)

One-way from

$412
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$1,553
From Washington, D.C. Dulles Intl to Southeast Asia
One-way flight from Washington, D.C. Dulles Intl to Southeast Asia
Highest demand for flights based on searches. 8% potential increase in price ($122 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find flight deals from Dulles Intl to Southeast Asia

Cheapest flights from Dulles Intl to Southeast Asia
Explore the most affordable flight options available from Dulles Intl to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2025.

This oojo deal was found by Cheapflights users on 7/22. 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.
Wed 8/2712:50 pmIAD - SIN
1 stop42h 40mAir India
Mon 9/811:00 pmSIN - IAD
1 stop44h 40mAir India
Deal found 7/22$796
This CrystalTravel deal was found by Cheapflights users on 7/21. 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.
Fri 11/2110:00 pmIAD - HKT
1 stop30h 30mAir China
Thu 11/2710:35 pmHKT - IAD
1 stop31h 55mAir China
Deal found 7/21$824
This Gotogate deal was found by Cheapflights users on 7/22. 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.
Mon 9/1510:05 pmIAD - SIN
1 stop23h 35mEtihad Airways
Wed 10/19:10 pmSIN - IAD
1 stop31h 00mEtihad Airways
Deal found 7/22$847
This Gotogate deal was found by Cheapflights users on 7/22. 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.
Wed 9/101:30 pmIAD - SIN
2 stops39h 50mMultiple Airlines
Thu 9/2511:25 pmSIN - IAD
1 stop32h 05mMultiple Airlines
Deal found 7/22$859
This Booking.com deal was found by Cheapflights users on 7/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:40 pmIAD - SIN
2 stops31h 40mIndiGo
Thu 9/257:45 pmSIN - IAD
2 stops36h 00mIndiGo
Deal found 7/21$874
This CrystalTravel deal was found by Cheapflights users on 7/22. 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.
Tue 9/168:17 pmIAD - HKT
2 stops38h 53mKorean Air
Tue 9/2311:25 pmHKT - IAD
1 stop22h 30mKorean Air
Deal found 7/22$886
This oojo deal was found by Cheapflights users on 7/22. 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 9/161:15 pmIAD - HKT
1 stop44h 00mMultiple Airlines
Tue 9/2311:25 pmHKT - IAD
1 stop22h 30mMultiple Airlines
Deal found 7/22$893
This United Airlines deal was found by Cheapflights users on 7/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/65:20 pmIAD - MNL
1 stop24h 35mUnited Airlines
Sun 9/218:40 amMNL - IAD
1 stop22h 12mUnited Airlines
Deal found 7/23$895
This Air Canada deal was found by Cheapflights users on 7/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/148:19 amIAD - MNL
2 stops46h 16mMultiple Airlines
Mon 9/812:40 amMNL - IAD
2 stops32h 45mMultiple Airlines
Deal found 7/22$897
This FlightHub deal was found by Cheapflights users on 7/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:17 pmIAD - MNL
2 stops26h 38mKorean Air
Thu 10/91:10 amMNL - IAD
1 stop21h 45mKorean Air
Deal found 7/23$900
This Korean Air deal was found by Cheapflights users on 7/22. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/133:26 pmIAD - SGN
2 stops43h 39mKorean Air
Tue 8/2611:45 pmSGN - IAD
2 stops34h 36mKorean Air
Deal found 7/22$901
This FlightHub deal was found by Cheapflights users on 7/21. 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 8/239:40 pmIAD - SGN
1 stop31h 30mTurkish Airlines
Wed 9/310:05 pmSGN - IAD
1 stop24h 40mTurkish Airlines
Deal found 7/21$903

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 July 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Southeast Asia that are best for you.

Fly from

Dulles Intl

Fly to

Southeast Asia

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 8/27

12:50 pm-7:30 pm

1 stop42h 40m

Singapore Changi

Mon 9/8

11:00 pm-7:40 am

1 stop44h 40m

$796

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 10/21

11:00 pm-5:45 pm

1 stop31h 45m

Phuket City

Thu 10/30

6:25 pm-7:30 pm

1 stop36h 05m

$847

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/15

10:05 pm-9:40 am

1 stop23h 35m

Singapore Changi

Wed 10/1

9:10 pm-4:10 pm

1 stop31h 00m

$847

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9/10

1:30 pm-5:20 pm

2 stops39h 50m

Singapore Changi

Thu 9/25

11:25 pm-7:30 pm

1 stop32h 05m

$859

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9/10

9:40 pm-5:20 pm

2 stops31h 40m

Singapore Changi

Thu 9/25

7:45 pm-7:45 pm

2 stops36h 00m

$874

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 9/16

8:17 pm-10:10 pm

2 stops38h 53m

Phuket City

Tue 9/23

11:25 pm-10:55 am

1 stop22h 30m

$886

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 9/16

1:15 pm-8:15 pm

1 stop44h 00m

Phuket City

Tue 9/23

11:25 pm-10:55 am

1 stop22h 30m

$893

Washington, D.C.Manila

IAD - MNL

IADMNL

Washington, D.C. Dulles Intl

Thu 8/14

8:19 am-6:35 pm

2 stops46h 16m

Manila Ninoy Aquino Intl

Mon 9/8

12:40 am-9:25 pm

2 stops32h 45m

$897

Washington, D.C.Manila

IAD - MNL

IADMNL

Washington, D.C. Dulles Intl

Fri 1/9

8:25 am-9:50 pm

2 stops24h 25m

Manila Ninoy Aquino Intl

Wed 2/25

11:30 pm-11:37 am

2 stops25h 07m

$899

Washington, D.C.Manila

IAD - MNL

IADMNL

Washington, D.C. Dulles Intl

Mon 9/15

8:17 pm-10:55 am

2 stops26h 38m

Manila Ninoy Aquino Intl

Thu 10/9

1:10 am-10:55 am

1 stop21h 45m

$900

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

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

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Southeast Asia

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Southeast Asia?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Southeast Asia (average of $950). Flying from Washington, D.C. Dulles Intl Airport to Southeast Asia in December is currently the most expensive (average of $1,568). 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 IAD to YJX?

Find hourly flight availability from Dulles Intl 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 July 23, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport 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 July 23, 2025.
Get a feel of what it's like to fly with EVA Air, Korean Air, and ANA from Washington, D.C. Dulles Intl Airport 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.

Entertainment

8.0

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
8.4
Very good

Entertainment

8.0

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Overall

8.4

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Southeast Asia one-way?

    $412 is the cheapest one-way deal found within the past few days, from IndiGo. You may also be able to find cheap deals on Etihad Airways and Korean Air, with prices starting from $419 and $436, respectively.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Southeast Asia?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Southeast Asia?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Southeast Asia (average of $950). Flying from Washington, D.C. Dulles Intl Airport to Southeast Asia in December is currently the most expensive (average of $1,568). 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 Dulles Intl to Southeast Asia

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

Top 10 airlines flying from Dulles Intl to Southeast Asia

Discover the top 10 airlines that operate flights from Dulles Intl 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 July 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$162Average$267FlexibilityNo cancel feeOn-time62%
Air ChinaCheapest$565Average$756FlexibilityNo cancel feeOn-time67%
SAUDIACheapest$596Average$913FlexibilityNo cancel feeOn-time86%
Cathay PacificCheapest$763Average$1,262FlexibilityNo cancel feeOn-time72%
Singapore AirlinesCheapest$846Average$1,534FlexibilityNo cancel feeOn-time81%
Etihad AirwaysCheapest$884Average$1,116FlexibilityNo cancel feeOn-time75%
DeltaCheapest$928Average$1,505FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$928Average$1,391FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$936Average$1,272FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$938Average$1,399FlexibilityNo cancel feeOn-time67%

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