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Cheap flights from Chiang Mai to Washington, D.C. Dulles Intl Airport from ฿14,863

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
17 Mar — 24 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 15 February 2026.

Mon 23/318:25
CNX
-
IAD
2 stops36h 05m
Multiple Airlines
Mon 24/813:20
IAD
-
CNX
1 stop45h 40m
Multiple Airlines
Deal found 14/2฿33,566
Tue 26/511:35
CNX
-
IAD
2 stops47h 24m
Multiple Airlines
Tue 2/617:33
IAD
-
CNX
2 stops29h 52m
Multiple Airlines
Deal found 11/2฿36,198
Mon 23/318:25
CNX
-
IAD
2 stops36h 05m
Multiple Airlines
Mon 24/801:50
IAD
-
CNX
1 stop21h 35m
Multiple Airlines
Deal found 14/2฿37,344
Wed 25/321:45
CNX
-
IAD
2 stops33h 35m
Multiple Airlines
Mon 24/813:20
IAD
-
CNX
1 stop45h 40m
Multiple Airlines
Deal found 14/2฿38,551
Mon 23/318:15
CNX
-
IAD
2 stops36h 15m
Multiple Airlines
Fri 21/801:50
IAD
-
CNX
1 stop21h 35m
Multiple Airlines
Deal found 14/2฿38,737
Tue 26/509:30
CNX
-
IAD
1 stop35h 15m
เอทิฮัดแอร์เวย์
Tue 2/615:10
IAD
-
CNX
1 stop28h 15m
เอทิฮัดแอร์เวย์
Deal found 13/2฿39,078
Tue 24/310:10
CNX
-
IAD
2 stops40h 30m
ออสเตรียนแอร์ไลน์
Tue 25/817:25
IAD
-
CNX
2 stops38h 45m
ออสเตรียนแอร์ไลน์
Deal found 14/2฿39,480
Tue 24/310:35
CNX
-
IAD
2 stops33h 45m
Multiple Airlines
Mon 24/813:20
IAD
-
CNX
1 stop45h 40m
Multiple Airlines
Deal found 14/2฿39,697
Mon 23/319:45
CNX
-
IAD
2 stops54h 55m
Multiple Airlines
Wed 26/820:20
IAD
-
CNX
2 stops30h 25m
Multiple Airlines
Deal found 14/2฿40,162

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 15 February 2026.

Round-trip from

฿33,566

One-way from

฿14,863
23/3-24/8
  • 23/3-24/8
  • 3 total stops
  • 81h 45m total
  • Chiang Mai to Washington, D.C.
Search Deals
Air China
  • Air China
  • 16/3
  • 1 total stop
  • 31h 25m 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 15 February 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

11:35-23:59

2 stops47h 24m

Washington, D.C. Dulles Intl

Tue 2/6

17:33-10:25

2 stops29h 52m

฿36,198

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 26/3

14:30-19:30

2 stops40h 00m

Washington, D.C. Dulles Intl

Mon 24/8

01:50-10:25

1 stop21h 35m

฿37,344

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

฿39,078

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 24/3

10:10-15:40

2 stops40h 30m

Washington, D.C. Dulles Intl

Tue 25/8

17:25-19:10

2 stops38h 45m

฿39,480

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 23/3

19:45-15:40

2 stops54h 55m

Washington, D.C. Dulles Intl

Tue 25/8

20:20-13:45

2 stops30h 25m

฿40,162

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 12/6

11:20-15:05

2 stops38h 45m

Washington, D.C. Dulles Intl

Tue 14/7

17:01-10:20

2 stops30h 19m

฿41,803

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 21/3

22:50-16:55

2 stops29h 05m

Washington, D.C. Dulles Intl

Mon 24/8

13:20-22:00

1 stop45h 40m

฿42,236

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 24/3

10:35-09:20

2 stops33h 45m

Washington, D.C. Dulles Intl

Mon 24/8

01:50-10:25

1 stop21h 35m

฿43,506

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 5/3

23:05-18:30

1 stop31h 25m

฿15,328

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 16/3

06:30-19:30

2 stops48h 00m

฿18,115

Flights are sorted by cheapest return flights first.

Deals found on 12/2

Showing 1-10 of 17 results
1
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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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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