HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southeast Asia

$416+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BKK
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Southeast Asia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 February 3, 2026.

This CrystalTravel deal was found by Cheapflights users on 2/1. 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.
Wed 4/153:10 pm
IAD
-
CGK
1 stop31h 25m
Etihad Airways
Wed 4/227:05 pm
CGK
-
IAD
1 stop25h 40m
Etihad Airways
Deal found 2/1$802
This Justfly.com deal was found by Cheapflights users on 2/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:45 pm
IAD
-
CGK
1 stop32h 50m
Turkish Airlines
Wed 4/229:00 pm
CGK
-
IAD
1 stop33h 50m
Turkish Airlines
Deal found 2/2$833
This CrystalTravel deal was found by Cheapflights users on 1/31. 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 5/83:10 pm
IAD
-
CGK
1 stop31h 25m
Etihad Airways
Fri 5/227:05 pm
CGK
-
IAD
1 stop25h 40m
Etihad Airways
Deal found 1/31$839
This oojo deal was found by Cheapflights users on 2/1. 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 4/93:10 pm
IAD
-
CGK
1 stop31h 25m
Etihad Airways
Wed 4/227:05 pm
CGK
-
IAD
1 stop25h 40m
Etihad Airways
Deal found 2/1$845
This BYOjet deal was found by Cheapflights users on 1/31. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/183:35 pm
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Wed 3/257:25 pm
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 1/31$847
This CrystalTravel deal was found by Cheapflights users on 2/1. 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.
Mon 3/22:35 pm
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Mon 3/97:25 pm
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 2/1$848
This CrystalTravel deal was found by Cheapflights users on 2/2. 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.
Wed 2/252:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
Wed 3/118:05 pm
BKK
-
IAD
1 stop25h 00m
Etihad Airways
Deal found 2/2$855
This FlightHub deal was found by Cheapflights users on 2/1. 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 9/149:00 pm
IAD
-
BKK
1 stop22h 20m
Qatar Airways
Tue 9/222:30 am
BKK
-
IAD
1 stop24h 10m
Qatar Airways
Deal found 2/1$856
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/172:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
Wed 3/45:40 pm
BKK
-
IAD
2 stops51h 25m
Etihad Airways
Deal found 2/2$857
This oojo deal was found by Cheapflights users on 2/2. 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 3/192:30 pm
IAD
-
CGK
1 stop40h 30m
Turkish Airlines
Thu 3/269:05 pm
CGK
-
IAD
1 stop26h 40m
Turkish Airlines
Deal found 2/2$857
This oojo deal was found by Cheapflights users on 2/1. 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 3/1810:15 pm
IAD
-
BKK
1 stop29h 50m
Turkish Airlines
Fri 3/2711:15 pm
BKK
-
IAD
1 stop24h 30m
Turkish Airlines
Deal found 2/1$859
This KAYAK deal was found by Cheapflights users on 1/31. 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.
Fri 2/202:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
Wed 6/39:00 pm
BKK
-
IAD
1 stop23h 45m
Etihad Airways
Deal found 1/31$860

Find 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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$802
(CrystalTravel)

One-way from

$416
(CheapOair)

Popular in

June

Cheapest in

September

Average price

$1,231
Provider with most accurate pricing for Washington, D.C. (WAS)-Manila Ninoy Aquino Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Manila Ninoy Aquino Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Southeast Asia
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Southeast Asia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($187 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 3, 2026.
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.Jakarta

IAD - CGK

IADCGK

Washington, D.C. Dulles Intl

Wed 4/1

3:10 pm-9:35 am

1 stop31h 25m

Jakarta Soekarno-Hatta Intl

Wed 4/8

7:05 pm-9:45 am

1 stop25h 40m

$845

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 2/15

10:40 am-7:25 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Tue 6/2

1:45 am-4:05 pm

1 stop25h 20m

$925

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 2/15

10:40 am-7:25 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Thu 4/30

1:45 am-4:05 pm

1 stop25h 20m

$925

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 2/19

8:05 pm-6:25 pm

1 stop34h 20m

Bangkok Suvarnabhumi

Fri 6/5

7:40 pm-4:05 pm

1 stop31h 25m

$928

Washington, D.C.Cebu City

IAD - CEB

IADCEB

Washington, D.C. Dulles Intl

Wed 4/15

7:11 pm-7:05 pm

2 stops35h 54m

Cebu City Mactan Intl

Thu 4/23

10:50 am-5:50 am

2 stops31h 00m

$935

Washington, D.C.Manila

IAD - MNL

IADMNL

Washington, D.C. Dulles Intl

Mon 2/16

7:05 am-3:55 pm

2 stops43h 50m

Manila Ninoy Aquino Intl

Thu 3/5

10:55 am-5:40 am

2 stops31h 45m

$937

Washington, D.C.Manila

IAD - MNL

IADMNL

Washington, D.C. Dulles Intl

Thu 4/23

6:10 am-10:55 pm

2 stops28h 45m

Manila Ninoy Aquino Intl

Sat 5/16

5:40 pm-11:26 pm

2 stops41h 46m

$953

Washington, D.C.Manila

IAD - MNL

IADMNL

Washington, D.C. Dulles Intl

Sun 4/26

9:45 pm-7:10 pm

1 stop33h 25m

Manila Ninoy Aquino Intl

Thu 5/21

9:25 pm-11:35 am

1 stop26h 10m

$954

Washington, D.C.Cebu City

IAD - CEB

IADCEB

Washington, D.C. Dulles Intl

Sun 4/12

5:59 pm-10:50 am

2 stops28h 51m

Cebu City Mactan Intl

Sat 5/2

7:20 pm-11:26 pm

2 stops40h 06m

$954

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 2/21

8:05 pm-1:05 pm

1 stop29h 00m

Bangkok Suvarnabhumi

Fri 6/5

7:40 pm-4:05 pm

1 stop31h 25m

$965

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 60 results
1
2
3
...
6

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, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Southeast Asia (average of $627). Flying from Washington, D.C. Dulles Intl Airport to Southeast Asia in December is currently the most expensive (average of $914). 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.

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 February 3, 2026.
Get a feel of what it's like to fly with ANA, Korean Air, and Qatar Airways 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.
ANA
8.4
Very good
1,084 reviews

Food

7.8

Comfort

8.2

Overall

8.4

Entertainment

7.9

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
ANA
8.4
Very good
1,084 reviews
ANA
8.4
Very good
1,084 reviews

Food

7.8

Comfort

8.2

Overall

8.4

Entertainment

7.9

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Korean Air
8.4
Very good
1,188 reviews
ANA
8.4
Very good
1,084 reviews

Food

7.8

Comfort

8.2

Overall

8.4

Entertainment

7.9

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Qatar Airways
7.4
Good
3,729 reviews
ANA
8.4
Very good
1,084 reviews

Food

7.8

Comfort

8.2

Overall

8.4

Entertainment

7.9

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
United Airlines
7.4
Good
9,235 reviews
ANA
8.4
Very good
1,084 reviews

Food

7.8

Comfort

8.2

Overall

8.4

Entertainment

7.9

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Turkish Airlines
7.3
Good
4,210 reviews
ANA
8.4
Very good
1,084 reviews

Food

7.8

Comfort

8.2

Overall

8.4

Entertainment

7.9

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!

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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Southeast Asia?

    Departing from Washington, D.C. Dulles Intl Airport to Southeast Asia will take you 20h 45m. The distance from Washington, D.C. Dulles Intl Airport to Southeast Asia is about 8792 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Southeast Asia one-way?

    $351 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Korean Air and Etihad Airways, with prices starting from $394 and $401, respectively.

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

    While some choose either Washington, D.C. Dulles Intl - Manila Ninoy Aquino Intl or Washington, D.C. Dulles Intl - Ho Chi Minh City, Washington, D.C. Dulles Intl - Bangkok Suvarnabhumi is the most popular route 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, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Southeast Asia (average of $627). Flying from Washington, D.C. Dulles Intl Airport to Southeast Asia in December is currently the most expensive (average of $914). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Haneda flights
Dulles Intl to Narita flights
Dulles Intl to Incheon Intl flights
Reagan-National to Haneda flights
Reagan-National to Narita flights
Dulles Intl to Suvarnabhumi flights
Baltimore to Narita flights
Baltimore to Haneda flights
Dulles Intl to New Delhi flights
Dulles Intl to Hyderabad flights
Reagan-National to Suvarnabhumi flights
Baltimore to Suvarnabhumi flights
Reagan-National to Incheon Intl flights
Reagan-National to New Delhi flights
Dulles Intl to Gimpo Intl flights
Baltimore to Incheon Intl flights
Dulles Intl to Taiwan Taoyuan Intl flights
Dulles Intl to Manila flights
Dulles Intl to Bangalore flights
Dulles Intl to Hongqiao Intl flights
Dulles Intl to Ho Chi Minh City flights
Baltimore to New Delhi flights
Reagan-National to Hyderabad flights
Baltimore to Hyderabad flights
Reagan-National to Taiwan Taoyuan Intl flights
Reagan-National to Bangalore flights
Baltimore to Bangalore flights
Dulles Intl to Don Mueang Intl flights
Dulles Intl to Mumbai flights
Baltimore to Taiwan Taoyuan Intl flights
Reagan-National to Hongqiao Intl flights
Dulles Intl to Ahmedabad flights
Baltimore to Manila flights
Dulles Intl to Chennai flights
Dulles Intl to Denpasar flights
Dulles Intl to Islamabad flights
Reagan-National to Mumbai flights
Dulles Intl to Capital flights
Reagan-National to Manila flights
Dulles Intl to Lahore flights
Dulles Intl to Hong Kong flights
Dulles Intl to Pu Dong flights
Baltimore to Mumbai flights
Reagan-National to Denpasar flights
Baltimore to Gimpo Intl flights
Dulles Intl to Sung Shan flights
Reagan-National to Gimpo Intl flights
Baltimore to Denpasar flights
Reagan-National to Hong Kong flights
Baltimore to Hongqiao Intl flights

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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$162Average$267FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$512Average$1,827FlexibilityNo cancel feeOn-time62%
Air ChinaCheapest$565Average$851FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$604Average$1,298FlexibilityNo cancel feeOn-time76%
IndiGoCheapest$639Average$1,153FlexibilityNo cancel feeOn-time80%
DeltaCheapest$664Average$1,252FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$671Average$1,162FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$763Average$1,123FlexibilityNo cancel feeOn-time72%
Air IndiaCheapest$778Average$1,056FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$787Average$1,093FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.