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Cheap flights from Chiang Mai to Washington, D.C. Dulles Intl Airport from ฿20,072

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
5 Jul — 12 Jul1
1 adult

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 30 June 2025.

Round-trip from

฿38,387

One-way from

฿20,072
17/9-13/10
  • 17/9-13/10
  • 2 total stops
  • 46h 05m total
  • Chiang Mai to Washington, D.C.
3/9
  • 3/9
  • 3 total stops
  • 42h 00m total
  • Chiang Mai to Washington, D.C.

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 30 June 2025.

Wed 17/923:15CNX - IAD
1 stop22h 40mMultiple Airlines
Mon 13/1013:15IAD - CNX
1 stop23h 25mMultiple Airlines
Deal found 27/6฿38,387
Mon 4/823:05CNX - IAD
1 stop31h 25mAir China
Tue 9/923:00IAD - CNX
1 stop35h 50mAir China
Deal found 30/6฿39,688
Mon 4/823:15CNX - IAD
2 stops41h 42mเดลต้า
Tue 9/907:35IAD - CNX
2 stops27h 20mเดลต้า
Deal found 30/6฿45,837
Wed 17/921:10CNX - IAD
3 stops29h 20mออสเตรียนแอร์ไลน์
Mon 13/1018:40IAD - CNX
3 stops38h 50mออสเตรียนแอร์ไลน์
Deal found 27/6฿49,123
Sun 3/800:45CNX - IAD
2 stops41h 08mAsiana Airlines
Tue 9/917:40IAD - CNX
2 stops43h 00mAsiana Airlines
Deal found 28/6฿58,785

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 30 June 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

Wed 17/9

23:15-10:55

1 stop22h 40m

Washington, D.C. Dulles Intl

Mon 13/10

13:15-23:40

1 stop23h 25m

฿38,387

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 4/8

23:05-19:30

1 stop31h 25m

Washington, D.C. Dulles Intl

Tue 9/9

23:00-21:50

1 stop35h 50m

฿39,688

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 4/8

23:15-05:57

2 stops41h 42m

Washington, D.C. Dulles Intl

Tue 9/9

07:35-21:55

2 stops27h 20m

฿45,837

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/9

21:10-15:30

3 stops29h 20m

Washington, D.C. Dulles Intl

Mon 13/10

18:40-20:30

3 stops38h 50m

฿49,123

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sun 3/8

00:45-06:53

2 stops41h 08m

Washington, D.C. Dulles Intl

Tue 9/9

17:40-23:40

2 stops43h 00m

฿58,785

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 3/9

09:10-16:10

3 stops42h 00m

฿20,072

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 1/9

23:15-05:55

2 stops41h 40m

฿21,536

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 3/9

23:15-10:55

1 stop22h 40m

฿24,464

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 5/9

20:00-08:40

2 stops47h 40m

฿26,904

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 1/9

00:45-18:38

2 stops28h 53m

฿30,612

Flights are sorted by cheapest return flights first.

Deals found on 28/6

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.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 30 June 2025.
See what other customers who have flown with Korean Air, Asiana Airlines, andเดลต้า from Chiang Mai to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Food

8.1

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

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.

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

    ฿21,536 is the cheapest one-way deal found within the past few days, from เดลต้า. You may also be able to find cheap deals on Korean Air and Qatar Airways, with prices starting from ฿24,464 and ฿26,904, 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

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

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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.

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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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