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Cheap flights from Chiang Mai to Washington, D.C. Dulles Intl Airport from ฿21,420

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

฿44,687

One-way from

฿21,420
EVA Air
  • EVA Air
  • 5/8-17/9
  • 4 total stops
  • 69h 06m total
  • Chiang Mai to Washington, D.C.
Search Deals
เดลต้า
  • เดลต้า
  • 25/8
  • 2 total stops
  • 35h 06m total
  • Chiang Mai to Washington, D.C.
Search Deals

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 12 June 2025.

Tue 5/811:35CNX - IAD
2 stops39h 50mEVA Air
Wed 17/918:09IAD - CNX
2 stops29h 16mEVA Air
Deal found 11/6฿44,687
Mon 4/823:15CNX - IAD
2 stops41h 42mเดลต้า
Tue 16/907:30IAD - CNX
2 stops27h 25mเดลต้า
Deal found 11/6฿48,025
Mon 4/823:05CNX - IAD
1 stop31h 25mAir China
Tue 16/923:00IAD - CNX
1 stop35h 50mAir China
Deal found 11/6฿48,155
Mon 4/811:55CNX - IAD
2 stops34h 50mเตอร์กิชแอร์ไลน์
Thu 18/921:40IAD - CNX
2 stops24h 40mเตอร์กิชแอร์ไลน์
Deal found 11/6฿50,585
Wed 6/820:00CNX - IAD
2 stops55h 15mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Tue 16/917:45IAD - CNX
2 stops33h 00mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 11/6฿51,039
Tue 5/820:00CNX - IAD
3 stops34h 45mMultiple Airlines
Wed 17/911:00IAD - CNX
2 stops24h 45mMultiple Airlines
Deal found 11/6฿52,011
Mon 4/817:40CNX - IAD
2 stops47h 41mแอร์แคนาดา
Tue 16/908:25IAD - CNX
2 stops45h 15mแอร์แคนาดา
Deal found 11/6฿53,210
Wed 6/810:10CNX - IAD
2 stops33h 30mEmirates
Fri 19/910:55IAD - CNX
2 stops37h 20mEmirates
Deal found 11/6฿56,613
Thu 7/820:00CNX - IAD
2 stops30h 40mQatar Airways
Mon 15/921:00IAD - CNX
2 stops35h 10mQatar Airways
Deal found 11/6฿57,455
Tue 29/700:45CNX - IAD
2 stops41h 08mAsiana Airlines
Mon 18/817:45IAD - CNX
2 stops42h 55mAsiana Airlines
Deal found 12/6฿58,881
Mon 4/823:15CNX - IAD
1 stop23h 00mKorean Air
Thu 18/909:30IAD - CNX
2 stops25h 25mKorean Air
Deal found 11/6฿67,728

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 12 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

Tue 5/8

11:35-16:25

2 stops39h 50m

Washington, D.C. Dulles Intl

Wed 17/9

18:09-10:25

2 stops29h 16m

฿44,687

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 16/9

07:30-21:55

2 stops27h 25m

฿48,025

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 16/9

23:00-21:50

1 stop35h 50m

฿48,155

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 4/8

11:55-11:45

2 stops34h 50m

Washington, D.C. Dulles Intl

Thu 18/9

21:40-09:20

2 stops24h 40m

฿50,585

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 6/8

20:00-16:15

2 stops55h 15m

Washington, D.C. Dulles Intl

Tue 16/9

17:45-13:45

2 stops33h 00m

฿51,039

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 5/8

20:00-19:45

3 stops34h 45m

Washington, D.C. Dulles Intl

Wed 17/9

11:00-22:45

2 stops24h 45m

฿52,011

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 4/8

17:40-06:21

2 stops47h 41m

Washington, D.C. Dulles Intl

Tue 16/9

08:25-16:40

2 stops45h 15m

฿53,210

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 6/8

10:10-08:40

2 stops33h 30m

Washington, D.C. Dulles Intl

Fri 19/9

10:55-11:15

2 stops37h 20m

฿56,613

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 7/8

20:00-15:40

2 stops30h 40m

Washington, D.C. Dulles Intl

Thu 18/9

21:00-19:10

2 stops35h 10m

฿57,455

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 29/7

00:45-06:53

2 stops41h 08m

Washington, D.C. Dulles Intl

Mon 18/8

17:45-23:40

2 stops42h 55m

฿58,881

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 19 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 12 June 2025.
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,202 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very Good
1,088 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Asiana Airlines
8.2
Very Good
440 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very Good
3,264 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
เดลต้า
8.0
Very Good
7,950 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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?

    ฿21,420 is the cheapest one-way deal found within the past few days, from เดลต้า. You may also be able to find cheap deals on Qatar Airways and Asiana Airlines, with prices starting from ฿26,573 and ฿30,396, 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.
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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