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Dulles Intl

$677+ Cheap flights from Chiang Mai (CNX) to Dulles Intl (IAD)

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
1 adult, Economy
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Cheap flight deals from Chiang Mai to Dulles Intl

Cheapest flights from Chiang Mai to Dulles Intl
Explore the most affordable flight options available from Chiang Mai to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.

This oojo deal was found by Cheapflights users on 8/3. 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 9/15:20 pm
CNX
-
IAD
2 stops47h 20m
STARLUX Airlines
Tue 9/155:57 pm
IAD
-
CNX
2 stops35h 08m
STARLUX Airlines
Deal found 8/3$1,048
This Expedia deal was found by Cheapflights users on 8/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2610:10 am
CNX
-
IAD
2 stops42h 50m
SWISS
Sat 1/308:10 pm
IAD
-
CNX
2 stops29h 35m
SWISS
Deal found 8/2$1,126
This FlightHub deal was found by Cheapflights users on 8/1. 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.
Sat 12/195:00 pm
CNX
-
IAD
2 stops48h 38m
STARLUX Airlines
Fri 1/85:38 pm
IAD
-
CNX
2 stops34h 22m
STARLUX Airlines
Deal found 8/1$1,192
This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:10 pm
CNX
-
IAD
2 stops29h 30m
Multiple Airlines
Tue 9/159:00 pm
IAD
-
CNX
2 stops25h 20m
Multiple Airlines
Deal found 7/31$1,230
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:20 pm
CNX
-
IAD
3 stops49h 44m
Multiple Airlines
Sun 9/69:00 pm
IAD
-
CNX
2 stops35h 10m
Multiple Airlines
Deal found 7/31$1,245
This Expedia deal was found by Cheapflights users on 8/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1810:10 am
CNX
-
IAD
2 stops40h 00m
Multiple Airlines
Fri 1/810:55 pm
IAD
-
CNX
2 stops34h 55m
Multiple Airlines
Deal found 8/1$1,261
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/302:20 pm
CNX
-
IAD
2 stops31h 30m
Multiple Airlines
Sun 9/63:10 pm
IAD
-
CNX
3 stops31h 10m
Multiple Airlines
Deal found 7/31$1,346
This Korean Air deal was found by Cheapflights users on 8/2. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2512:15 am
CNX
-
IAD
1 stop21h 35m
Korean Air
Sat 1/3011:50 am
IAD
-
CNX
1 stop23h 05m
Korean Air
Deal found 8/2$1,350
This FlightHub deal was found by Cheapflights users on 8/1. 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.
Fri 12/187:45 pm
CNX
-
IAD
2 stops54h 25m
Austrian Airlines
Thu 1/76:10 pm
IAD
-
CNX
2 stops36h 50m
Austrian Airlines
Deal found 8/1$1,351

Find flight deals from Chiang Mai to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Dulles Intl (IAD). 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 August 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,048
(oojo)

One-way from

$677
(SmartFares)
Provider with most accurate pricing for Chiang Mai-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chiang Mai-Washington, D.C. Dulles Intl flights.
Search Deals
From Chiang Mai to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Chiang Mai to Washington, D.C. Dulles Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chiang Mai 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 2,558,603 searches. Data last updated August 4, 2026.
Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 12/26

10:10 am-2:55 pm

3 stops40h 45m

Washington, D.C. Dulles Intl

Sat 1/30

8:10 pm-1:45 pm

2 stops29h 35m

$1,265

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 8/20

5:20 pm-8:04 am

3 stops49h 44m

Washington, D.C. Dulles Intl

Sat 9/5

1:15 am-10:25 am

1 stop22h 10m

$1,270
Quickest round-trip

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 12/25

12:15 am-9:50 am

1 stop21h 35m

Washington, D.C. Dulles Intl

Sat 1/30

11:50 am-10:55 pm

1 stop23h 05m

$1,350

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 9/1

11:35 am-4:44 pm

2 stops40h 09m

Washington, D.C. Dulles Intl

Mon 9/14

1:15 am-10:25 am

1 stop22h 10m

$1,375

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 12/19

10:10 am-3:40 pm

3 stops41h 30m

Washington, D.C. Dulles Intl

Fri 1/8

6:10 pm-7:00 pm

2 stops36h 50m

$1,406

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 9/21

11:55 am-8:45 am

2 stops31h 50m

Washington, D.C. Dulles Intl

Wed 9/23

9:00 pm-7:10 pm

2 stops35h 10m

$1,421

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 12/18

12:15 am-9:50 am

1 stop21h 35m

Washington, D.C. Dulles Intl

Thu 1/7

11:50 am-10:55 pm

1 stop23h 05m

$1,447

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 12/18

10:10 am-8:15 pm

3 stops46h 05m

Washington, D.C. Dulles Intl

Fri 1/8

6:10 pm-7:00 pm

2 stops36h 50m

$1,519

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 11/20

7:45 pm-3:55 pm

2 stops32h 10m

Washington, D.C. Dulles Intl

Mon 11/23

8:05 pm-9:25 am

2 stops49h 20m

$1,520
Cheapest one-way

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 1/23

5:00 pm-4:26 pm

2 stops59h 26m

$677

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Showing 1-10 of 13 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Chiang Mai-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chiang Mai-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chiang Mai-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chiang Mai-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chiang Mai-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chiang Mai to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Chiang Mai 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.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Dulles Intl. 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 Chiang Mai to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Chiang Mai, you will be flying from Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai. There are 0 flights from Chiang Mai to Washington, D.C. Dulles Intl per day from 0 different airlines.

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

    Airlines like SWISS, Korean Air, and EVA Air fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 21h 35m. The time it takes to get you to your destination can typically vary by up to 19h 10m. The distance from Chiang Mai to Washington, D.C. Dulles Intl Airport is about 8436 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Chiang Mai to Dulles Intl?

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

  • Can I find deals for business class flights from Chiang Mai to Dulles Intl?

    Yes. Cheapflights offers flight deals from Chiang Mai 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.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Oxon Hill
Hunt Valley
Woodbridge

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