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Dulles Intl

$689+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
Jun 27 — Jul 41
Sat 6/27
Sat 7/4
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 May 28, 2026.

This FlightHub deal was found by Cheapflights users on 5/25. 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 5/265:20 pm
CNX
-
IAD
2 stops49h 14m
Multiple Airlines
Tue 6/25:35 pm
IAD
-
CNX
2 stops35h 45m
Multiple Airlines
Deal found 5/25$1,149
This Qatar Airways deal was found by Cheapflights users on 5/27. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:55 am
CNX
-
IAD
2 stops41h 25m
Multiple Airlines
Mon 7/209:00 pm
IAD
-
CNX
2 stops25h 20m
Multiple Airlines
Deal found 5/27$1,478
This Qatar Airways deal was found by Cheapflights users on 5/23. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:00 pm
CNX
-
IAD
2 stops30h 40m
Qatar Airways
Tue 10/209:00 pm
IAD
-
CNX
2 stops29h 45m
Qatar Airways
Deal found 5/23$1,519
This FlightHub deal was found by Cheapflights users on 5/24. 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 8/79:25 am
CNX
-
IAD
2 stops42h 20m
Multiple Airlines
Wed 8/2610:20 pm
IAD
-
CNX
2 stops33h 50m
Multiple Airlines
Deal found 5/24$1,558

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 May 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,478
(Qatar Airways)

One-way from

$689
(China Airlines)
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.
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From Chiang Mai to Washington, D.C. Dulles Intl
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One-way flight from Chiang Mai to Washington, D.C. Dulles Intl
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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 May 28, 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

Mon 6/8

11:55 am-6:20 pm

2 stops41h 25m

Washington, D.C. Dulles Intl

Mon 7/20

9:00 pm-9:20 am

2 stops25h 20m

$1,478

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 10/16

8:00 pm-3:40 pm

2 stops30h 40m

Washington, D.C. Dulles Intl

Tue 10/20

9:00 pm-1:45 pm

2 stops29h 45m

$1,519

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 8/7

8:00 pm-4:45 pm

2 stops55h 45m

Washington, D.C. Dulles Intl

Wed 8/26

10:15 pm-1:45 pm

3 stops28h 30m

$1,628

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 7/16

11:55 am-10:30 pm

2 stops45h 35m

Washington, D.C. Dulles Intl

Mon 7/20

1:50 am-10:25 am

1 stop21h 35m

$1,630

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 7/16

8:00 pm-2:00 pm

3 stops53h 00m

Washington, D.C. Dulles Intl

Tue 7/21

8:20 pm-1:45 pm

2 stops30h 25m

$1,700
Quickest round-trip

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 8/7

11:35 am-10:30 pm

1 stop21h 55m

Washington, D.C. Dulles Intl

Wed 8/26

5:47 pm-10:25 am

2 stops29h 38m

$1,705

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 10/16

9:45 pm-11:05 am

1 stop24h 20m

Washington, D.C. Dulles Intl

Tue 10/20

1:15 pm-8:45 pm

1 stop44h 30m

$1,714
Cheapest one-way

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 9/8

5:20 pm-5:40 am

2 stops47h 20m

$692

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 11/4

3:45 pm-2:45 pm

3 stops35h 00m

$783

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 6/15

11:55 am-8:45 am

2 stops31h 50m

$808

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/25

Showing 1-10 of 14 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 Qatar Airways fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 30h 40m. The time it takes to get you to your destination can typically vary by up to . The distance from Chiang Mai to Washington, D.C. Dulles Intl Airport is about 8436 mi.

  • 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
Tysons
Owings Mills
Springfield
Arlington
Reston
Herndon
Fredericksburg
Rockville
Hyattsville
Manassas
Hanover
Chantilly
Laurel
Falls Church
Waldorf
Silver Spring
Largo
Clinton
Hunt Valley

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