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Cheap flights from Chiang Mai to Washington, D.C. Dulles Intl Airport from ฿18,144

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
2 Mar — 9 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 31 January 2026.

Tue 26/511:20
CNX
-
IAD
2 stops31h 14m
Multiple Airlines
Tue 2/606:00
IAD
-
CNX
2 stops41h 20m
Multiple Airlines
Deal found 30/1฿36,759
Tue 26/511:35
CNX
-
IAD
2 stops30h 59m
EVA Air
Tue 2/617:33
IAD
-
CNX
2 stops29h 52m
EVA Air
Deal found 30/1฿36,791
Tue 26/509:30
CNX
-
IAD
1 stop35h 15m
เอทิฮัดแอร์เวย์
Tue 2/615:10
IAD
-
CNX
1 stop28h 15m
เอทิฮัดแอร์เวย์
Deal found 30/1฿39,526
Thu 24/920:00
CNX
-
IAD
2 stops30h 40m
Qatar Airways
Mon 28/921:00
IAD
-
CNX
2 stops27h 15m
Qatar Airways
Deal found 30/1฿45,061
Thu 24/909:30
CNX
-
IAD
1 stop35h 15m
เอทิฮัดแอร์เวย์
Mon 28/915:10
IAD
-
CNX
2 stops33h 05m
เอทิฮัดแอร์เวย์
Deal found 30/1฿66,412

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 31 January 2026.

Round-trip from

฿36,759

One-way from

฿18,144
26/5-2/6
  • 26/5-2/6
  • 4 total stops
  • 72h 34m total
  • Chiang Mai to Washington, D.C.
Search Deals
17/3
  • 17/3
  • 3 total stops
  • 56h 00m 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 31 January 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

Chiang Mai

Fly to

Dulles Intl

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 26/5

11:20-07:34

2 stops31h 14m

Washington, D.C. Dulles Intl

Tue 2/6

06:00-10:20

2 stops41h 20m

฿36,759

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 26/5

09:30-09:45

1 stop35h 15m

Washington, D.C. Dulles Intl

Tue 2/6

15:10-06:25

1 stop28h 15m

฿39,526

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 18/3

10:30-10:05

3 stops58h 35m

฿18,207

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 16/3

14:20-18:25

3 stops39h 05m

฿19,307

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 17/2

17:25-09:05

3 stops51h 40m

฿19,433

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 20/2

15:30-09:05

3 stops53h 35m

฿20,439

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 25/6

23:05-19:30

1 stop31h 25m

฿21,100

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 2/3

23:05-18:30

1 stop31h 25m

฿21,508

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 22/6

23:05-19:30

1 stop31h 25m

฿22,263

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 25/6

15:30-11:35

2 stops31h 05m

฿23,521

Flights are sorted by cheapest return flights first.

Deals found on 29/1

Showing 1-10 of 14 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 เอทิฮัดแอร์เวย์ fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 35h 15m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 13576 km.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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.
Chiang Mai to Baltimore flights
Chiang Mai to Reagan-National flights

Fly with Cheapflights

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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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