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Cheap flights from Southeast Asia to Washington, D.C. Dulles Intl Airport from S$ 794

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 28-9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — IAD
20 May — 27 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southeast Asia to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Southeast Asia to Dulles Intl
Explore the most affordable flight options available from Southeast Asia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 April 2026.

Wed 2-915:00
SIN
-
IAD
2 stops64h 30m
Air China
Tue 15-923:00
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 15-4S$ 1,239
Mon 7-923:25
SIN
-
IAD
1 stop32h 05m
Air China
Tue 15-923:00
IAD
-
SIN
1 stop34h 55m
Air China
Deal found 15-4S$ 1,342
Wed 10-619:45
BKK
-
IAD
1 stop33h 25m
Multiple Airlines
Wed 9-921:00
IAD
-
BKK
1 stop29h 25m
Multiple Airlines
Deal found 16-4S$ 1,394
Thu 1-1009:35
BKK
-
IAD
2 stops46h 47m
United Airlines
Mon 12-1022:10
IAD
-
BKK
2 stops43h 25m
United Airlines
Deal found 17-4S$ 1,395
Mon 1-609:50
BKK
-
IAD
2 stops25h 23m
Delta
Fri 28-807:25
IAD
-
BKK
2 stops27h 20m
Delta
Deal found 16-4S$ 1,406
Fri 25-1223:15
BKK
-
IAD
1 stop22h 35m
Korean Air
Fri 8-111:50
IAD
-
BKK
1 stop23h 30m
Korean Air
Deal found 15-4S$ 1,408
Thu 24-909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Mon 28-910:08
IAD
-
BKK
2 stops31h 27m
United Airlines
Deal found 16-4S$ 1,409
Fri 1-519:40
BKK
-
IAD
1 stop33h 30m
Multiple Airlines
Sat 9-521:00
IAD
-
BKK
1 stop29h 45m
Multiple Airlines
Deal found 17-4S$ 1,414
Fri 11-909:35
BKK
-
IAD
2 stops31h 59m
United Airlines
Mon 21-917:15
IAD
-
BKK
3 stops29h 20m
United Airlines
Deal found 19-4S$ 1,420
Thu 8-1009:35
BKK
-
IAD
2 stops42h 38m
United Airlines
Mon 2-1118:50
IAD
-
BKK
2 stops28h 35m
United Airlines
Deal found 15-4S$ 1,422
Fri 24-419:45
BKK
-
IAD
1 stop33h 25m
Qatar Airways
Wed 6-521:00
IAD
-
BKK
1 stop30h 10m
Qatar Airways
Deal found 17-4S$ 1,423
Sun 26-419:00
BKK
-
IAD
1 stop34h 10m
Qatar Airways
Thu 7-521:00
IAD
-
BKK
1 stop22h 50m
Qatar Airways
Deal found 19-4S$ 1,425

Find flight deals from Southeast Asia to Dulles Intl

Keep the following information in mind while searching for Southeast Asia to Dulles Intl flight deals. Data was last updated 20 April 2026.

Round-trip from

S$ 1,239

One-way from

S$ 794
Air China
  • Air China
  • 2-9-15-9
  • 3 total stops
  • 93h 55m total
  • Southeast Asia to Washington, D.C.
Search Deals
28-9
  • 28-9
  • 2 total stops
  • 27h 20m total
  • Southeast Asia to Washington, D.C.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southeast Asia to Dulles Intl 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 200,618 searches. Data last updated 20 April 2026.
Use the filters below to find and compare flights from Southeast Asia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24-9

07:00-14:03

2 stops42h 03m

Washington, D.C. Dulles Intl

Mon 28-9

17:42-09:35

2 stops28h 53m

S$ 1,423

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 26-6

09:55-15:40

1 stop40h 45m

Washington, D.C. Dulles Intl

Wed 9-9

21:00-12:55

1 stop28h 55m

S$ 1,442

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24-9

09:55-08:45

1 stop33h 50m

Washington, D.C. Dulles Intl

Mon 28-9

21:00-19:05

1 stop35h 05m

S$ 1,484

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5-5

02:30-18:10

1 stop26h 40m

Washington, D.C. Dulles Intl

Wed 13-5

21:00-13:45

1 stop29h 45m

S$ 1,508

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 29-4

01:00-18:10

1 stop28h 10m

Washington, D.C. Dulles Intl

Wed 6-5

21:00-14:00

2 stops30h 00m

S$ 1,517

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 22-5

01:00-18:10

1 stop28h 10m

Washington, D.C. Dulles Intl

Tue 30-6

21:00-13:25

1 stop29h 25m

S$ 1,607

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6-5

19:45-18:20

2 stops33h 35m

Washington, D.C. Dulles Intl

Wed 13-5

21:00-13:45

1 stop29h 45m

S$ 1,614

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 9-5

02:30-18:10

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 11-6

21:00-13:45

1 stop29h 45m

S$ 1,642

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 15-5

01:30-07:34

2 stops42h 04m

Washington, D.C. Dulles Intl

Sat 23-5

21:00-16:15

1 stop31h 15m

S$ 1,663
Fastest return journey

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 21-5

01:00-18:20

1 stop28h 20m

Washington, D.C. Dulles Intl

Sat 13-6

21:00-06:50

1 stop22h 50m

S$ 1,676

Flights are sorted by cheapest return flights first.

Deals found on 19-4

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Southeast Asia to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Southeast Asia with our price prediction graph.
Estimated return 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 Southeast Asia to Washington, D.C. Dulles Intl Airport

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

Currently, March is the cheapest month in which you can book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport (average of S$ 559). Flying from Southeast Asia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,227). 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 Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 20 April 2026.
Get a feel of what it's like to fly with Qatar Airways and Turkish Airlines from Southeast Asia to Washington, D.C. Dulles Intl Airport 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.
Qatar Airways
7.4
Good
3,730 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

7.4

Boarding

7.5

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Qatar Airways
7.4
Good
3,730 reviews
Qatar Airways
7.4
Good
3,730 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

7.4

Boarding

7.5

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Turkish Airlines
7.4
Good
4,315 reviews
Qatar Airways
7.4
Good
3,730 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

7.4

Boarding

7.5

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Related info for your journey

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

    There are many flights that can get you from Southeast Asia to Washington, D.C. Dulles Intl Airport in 42h 03m. Fly via United Airlines or Emirates to get the fastest option. Airlines will cover a distance of 14149 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport (average of S$ 559). Flying from Southeast Asia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,227). 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 Southeast Asia to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Singapore to Dulles Intl flights
Singapore to Baltimore flights
Singapore to Reagan-National flights

Top 2 airlines flying from Southeast Asia to Dulles Intl

Discover the top 2 airlines that operate flights from Southeast Asia to Dulles Intl. 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 200,618 searches. Data last updated 20 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapestS$ 1,265AverageS$ 1,454FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapestS$ 1,760AverageS$ 1,834FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Southeast Asia to Dulles Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Southeast Asia today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Southeast Asia to Dulles Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Southeast Asia to Dulles Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Southeast Asia to Dulles Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Southeast Asia to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Southeast Asia to Dulles Intl become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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