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Cheap flights from Chiang Mai to Washington, D.C. Dulles Intl Airport from ฿17,479

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 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Chiang Mai to Dulles Intl

Enter your travel dates to find the best prices.

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 3 November 2025.

Thu 18/1223:05CNX - IAD
1 stop31h 25mAir China
Fri 2/122:00IAD - CNX
1 stop35h 50mAir China
Deal found 1/11฿36,893
Thu 18/1221:05CNX - IAD
2 stops30h 50mMultiple Airlines
Fri 2/110:40IAD - CNX
2 stops34h 45mMultiple Airlines
Deal found 1/11฿45,374
Sat 27/1208:50CNX - IAD
1 stop36h 15mเอทิฮัดแอร์เวย์
Thu 1/114:35IAD - CNX
1 stop27h 30mเอทิฮัดแอร์เวย์
Deal found 2/11฿50,276
Tue 16/1211:25CNX - IAD
2 stops41h 11mMultiple Airlines
Tue 23/1218:43IAD - CNX
2 stops27h 42mMultiple Airlines
Deal found 1/11฿51,598
Sat 27/1210:10CNX - IAD
2 stops34h 10mMultiple Airlines
Thu 1/120:05IAD - CNX
2 stops25h 20mMultiple Airlines
Deal found 2/11฿52,340
Wed 17/1200:15CNX - IAD
2 stops34h 53mเดลต้า
Fri 2/111:50IAD - CNX
1 stop23h 05mเดลต้า
Deal found 1/11฿55,307
Tue 16/1208:50CNX - IAD
1 stop42h 40mเอทิฮัดแอร์เวย์
Tue 23/1214:35IAD - CNX
1 stop27h 30mเอทิฮัดแอร์เวย์
Deal found 1/11฿64,917

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 3 November 2025.

Round-trip from

฿36,828

One-way from

฿17,834
Air China
  • Air China
  • 18/12-2/1
  • 2 total stops
  • 67h 15m total
  • Chiang Mai to Washington, D.C.
Search Deals
15/11
  • 15/11
  • 3 total stops
  • 52h 40m total
  • Chiang Mai to Washington, D.C.
Search Deals

Cheapflights Fare Finder

 
Customise 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 17,341 searches. Data last updated 3 November 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 18/12

23:05-18:30

1 stop31h 25m

Washington, D.C. Dulles Intl

Fri 2/1

22:00-21:50

1 stop35h 50m

฿36,893

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 18/12

21:05-15:55

2 stops30h 50m

Washington, D.C. Dulles Intl

Fri 2/1

10:40-09:25

2 stops34h 45m

฿45,374

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 18/2

21:40-15:55

2 stops30h 15m

Washington, D.C. Dulles Intl

Sun 22/2

20:05-21:00

2 stops36h 55m

฿45,794

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 27/12

08:50-09:05

1 stop36h 15m

Washington, D.C. Dulles Intl

Thu 1/1

14:35-06:05

1 stop27h 30m

฿50,276

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 27/12

10:10-08:20

2 stops34h 10m

Washington, D.C. Dulles Intl

Thu 1/1

20:05-09:25

2 stops25h 20m

฿52,340

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/12

00:15-23:27

2 stops35h 12m

Washington, D.C. Dulles Intl

Fri 2/1

06:00-22:55

2 stops28h 55m

฿55,307

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 16/12

08:50-15:30

1 stop42h 40m

Washington, D.C. Dulles Intl

Tue 23/12

07:33-10:25

2 stops38h 52m

฿62,499

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 17/11

23:05-18:30

1 stop31h 25m

฿17,479

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 18/11

23:05-17:46

3 stops54h 41m

฿21,607

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 13/11

00:15-09:50

1 stop21h 35m

฿21,704

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 18 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 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.

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?

    Located just 3.1 km from the city centre, Chiang Mai is the airport most travellers will use when flying to Washington, D.C. Dulles Intl from Chiang Mai. Booking flights from Chiang Mai (CNX) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 0 different airlines.

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

    Airlines like Air China and Qatar Airways fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 30h 15m. The time it takes to get you to your destination can typically vary by up to 1h 10m. Airlines will cover a distance of 13576 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    ฿17,479 is the cheapest one-way deal found within the past few days, from Air China. You may also be able to find cheap deals on Korean Air and เดลต้า, with prices starting from ฿21,704 and ฿21,833, respectively.

  • 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 holiday 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

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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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Chiang Mai to Reagan-National flights

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How does Cheapflights help users find flights from Chiang Mai to Dulles Intl?

Cheapflights helps you search for flights from Chiang Mai to Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chiang Mai to Dulles Intl.

Can Cheapflights find flights from Chiang Mai to Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Chiang Mai to Dulles Intl with no change fees.

Can Cheapflights notify me if prices for flights from Chiang Mai to Dulles Intl become cheaper?

Yes! Start tracking prices for Chiang Mai to Dulles Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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