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Dulles Intl

$503+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$1,122
(Air China)

One-way from

$503
(Trip.com)
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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Find 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 September 17, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:15 pmCNX - IAD
2 stops35h 23mDelta
Tue 10/216:15 amIAD - CNX
2 stops28h 40mDelta
Deal found 9/16$1,118
This Air China deal was found by Cheapflights users on 9/15. 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 China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2011:05 pmCNX - IAD
1 stop31h 25mAir China
Fri 11/1410:00 pmIAD - CNX
1 stop35h 50mAir China
Deal found 9/15$1,122
This Air China deal was found by Cheapflights users on 9/16. 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 China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1811:05 pmCNX - IAD
1 stop31h 25mAir China
Fri 1/210:00 pmIAD - CNX
1 stop35h 50mAir China
Deal found 9/16$1,125
This Air China deal was found by Cheapflights users on 9/15. 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 China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2311:05 pmCNX - IAD
1 stop31h 25mAir China
Fri 11/1410:00 pmIAD - CNX
1 stop35h 50mAir China
Deal found 9/15$1,172
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:15 amCNX - IAD
2 stops36h 11mDelta
Tue 1/67:00 amIAD - CNX
2 stops27h 55mDelta
Deal found 9/16$1,232
This Orbitz deal was found by Cheapflights users on 9/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:00 pmCNX - IAD
2 stops55h 15mMultiple Airlines
Fri 11/148:30 pmIAD - CNX
2 stops55h 05mMultiple Airlines
Deal found 9/15$1,270
This Booking.com deal was found by Cheapflights users on 9/16. 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.
Mon 12/812:15 amCNX - IAD
1 stop21h 35mMultiple Airlines
Tue 12/3012:20 pmIAD - CNX
2 stops44h 40mMultiple Airlines
Deal found 9/16$1,296
This FlightHub deal was found by Cheapflights users on 9/15. 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 9/228:00 pmCNX - IAD
2 stops30h 40mMultiple Airlines
Tue 10/219:00 pmIAD - CNX
2 stops27h 15mMultiple Airlines
Deal found 9/15$1,322

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 September 17, 2025.
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

Chiang Mai

Fly to

Dulles Intl

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 12/18

11:05 pm-6:30 pm

1 stop31h 25m

Washington, D.C. Dulles Intl

Fri 1/2

10:00 pm-9:50 pm

1 stop35h 50m

$1,125

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 3/3

12:15 am-11:02 pm

2 stops34h 47m

Washington, D.C. Dulles Intl

Sun 3/15

7:00 am-10:55 pm

2 stops28h 55m

$1,128

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 12/8

12:15 am-12:26 am

2 stops36h 11m

Washington, D.C. Dulles Intl

Tue 1/6

7:00 am-10:55 pm

2 stops27h 55m

$1,232

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 2/17

12:15 am-9:50 am

1 stop21h 35m

Washington, D.C. Dulles Intl

Sun 2/22

11:50 am-10:55 pm

1 stop23h 05m

$1,239

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 2/17

12:15 am-2:51 pm

2 stops50h 36m

Washington, D.C. Dulles Intl

Sun 2/22

11:00 am-10:55 pm

2 stops47h 55m

$1,241

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 12/17

12:15 am-9:50 am

1 stop21h 35m

Washington, D.C. Dulles Intl

Fri 1/2

7:05 am-10:55 pm

2 stops27h 50m

$1,345

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 10/20

6:50 pm-12:23 am

3 stops40h 33m

$503

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 12/4

12:15 am-9:50 am

1 stop21h 35m

$672

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 10/20

11:05 pm-7:30 pm

1 stop31h 25m

$675

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 10/22

11:15 pm-9:31 pm

2 stops33h 16m

$682

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 16 results
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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 Air China and Delta fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 31h 25m. The time it takes to get you to your destination can typically vary by up to 3h 22m. 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.

  • What is the cheapest month to book a flight from Chiang Mai to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Chiang Mai to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Chiang Mai to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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Alternative routes for Chiang Mai to Dulles Intl

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