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Chiang Mai

$542+ Cheap flights from Dulles Intl (IAD) to Chiang Mai (CNX)

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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CNX
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Dulles Intl to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Chiang Mai (CNX). 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 June 12, 2025.

Round-trip from

$931
(Gurufare)

One-way from

$542
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,582
From Washington, D.C. Dulles Intl to Chiang Mai
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One-way flight from Washington, D.C. Dulles Intl to Chiang Mai
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Highest demand for flights based on searches. 18% potential increase in price ($372 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($54 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Dulles Intl to Chiang Mai

Cheapest flights from Dulles Intl to Chiang Mai
Explore the most affordable flight options available from Dulles Intl to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Gurufare deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:25 pmIAD - CNX
2 stops38h 20mMultiple Airlines
Tue 9/303:30 pmCNX - IAD
2 stops29h 35mMultiple Airlines
Deal found 6/11$931
This CheapOair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:10 pmIAD - CNX
2 stops41h 45mKorean Air
Mon 9/1511:15 pmCNX - IAD
1 stop22h 40mKorean Air
Deal found 6/11$1,048
This oojo deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/186:13 pmIAD - CNX
2 stops29h 07mChina Airlines
Sun 8/3111:20 amCNX - IAD
2 stops31h 12mChina Airlines
Deal found 6/12$1,067
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:50 amIAD - CNX
1 stop23h 15mDelta
Sun 2/1512:15 amCNX - IAD
2 stops35h 01mDelta
Deal found 6/12$1,124
This oojo deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:09 pmIAD - CNX
2 stops29h 16mEVA Air
Mon 9/1511:35 amCNX - IAD
2 stops30h 57mEVA Air
Deal found 6/12$1,137
This Emirates deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1810:55 amIAD - CNX
2 stops45h 15mEmirates
Sun 8/3110:10 amCNX - IAD
2 stops33h 30mEmirates
Deal found 6/11$1,349
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1011:00 amIAD - CNX
2 stops35h 20mQatar Airways
Sat 8/232:40 pmCNX - IAD
2 stops36h 00mQatar Airways
Deal found 6/11$1,388
This oojo deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:30 pmIAD - CNX
1 stop20h 25mEtihad Airways
Fri 1/237:45 pmCNX - IAD
2 stops32h 20mEtihad Airways
Deal found 6/12$1,420
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/188:30 amIAD - CNX
2 stops28h 10mAsiana Airlines
Sat 8/3012:45 amCNX - IAD
2 stops31h 36mAsiana Airlines
Deal found 6/12$1,582
This SWISS deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/710:15 pmIAD - CNX
3 stops28h 30mSWISS
Wed 9/178:00 pmCNX - IAD
3 stops52h 55mSWISS
Deal found 6/11$1,619

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to Chiang Mai 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Chiang Mai that are best for you.

Fly from

Dulles Intl

Fly to

Chiang Mai

Route

Depart

Return

Price

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 9/1

12:25 pm-1:45 pm

2 stops38h 20m

Chiang Mai

Tue 9/30

3:30 pm-10:05 am

2 stops29h 35m

$931

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 9/8

5:10 pm-9:55 pm

2 stops41h 45m

Chiang Mai

Mon 9/15

11:15 pm-10:55 am

1 stop22h 40m

$1,048

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 8/18

6:13 pm-10:20 am

2 stops29h 07m

Chiang Mai

Sun 8/31

11:20 am-7:32 am

2 stops31h 12m

$1,067

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 9/10

6:09 pm-10:25 am

2 stops29h 16m

Chiang Mai

Mon 9/15

11:35 am-7:32 am

2 stops30h 57m

$1,137

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 7/14

6:20 am-9:55 pm

2 stops28h 35m

Chiang Mai

Mon 7/21

11:15 pm-11:25 pm

2 stops35h 10m

$1,154

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 8/18

10:55 am-7:10 pm

2 stops45h 15m

Chiang Mai

Sun 8/31

10:10 am-8:40 am

2 stops33h 30m

$1,349

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 8/10

11:00 am-9:20 am

2 stops35h 20m

Chiang Mai

Sat 8/23

2:40 pm-3:40 pm

2 stops36h 00m

$1,388

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 8/18

8:30 am-11:40 pm

2 stops28h 10m

Chiang Mai

Sat 8/30

12:45 am-9:21 pm

2 stops31h 36m

$1,582

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 9/7

10:15 pm-1:45 pm

3 stops28h 30m

Chiang Mai

Wed 9/17

8:00 pm-1:55 pm

3 stops52h 55m

$1,619

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Thu 7/10

12:35 pm-9:50 pm

2 stops46h 15m

Chiang Mai

Thu 7/17

11:05 pm-7:30 pm

1 stop31h 25m

$1,998

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 15 results
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Best time to book a flight from Dulles Intl to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Dulles Intl with our price prediction graph.
Estimated round-trip 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 Washington, D.C. Dulles Intl Airport to Chiang Mai

What is the cheapest time of day to fly from IAD to CNX?

Find hourly flight availability from Dulles Intl to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Chiang Mai, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 36% versus a flight in the afternoon.

Rainfall in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 9.8 inches per month. September is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 in.

Temperature in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chiang Mai, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. 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 Chiang Mai. Reviews last updated June 12, 2025.
EVA Air
8.4
Very good
1,202 reviews

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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
China Airlines
8.3
Very good
738 reviews
EVA Air
8.4
Very good
1,202 reviews

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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 Dulles Intl to Chiang Mai. 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 into for flights to Chiang Mai from Washington, D.C. Dulles Intl?

    Chiang Mai (CNX) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Chiang Mai. You should not have trouble finding flights to Chiang Mai from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Chiang Mai airport from Washington, D.C. Dulles Intl. It is only a 1.9 mi journey from Chiang Mai (CNX) to Chiang Mai’s city center.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Chiang Mai round-trip?

    Korean Air, at $1,048, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Chiang Mai.Alternate airlines to your destination round-trip include China Airlines and Delta. These flights start at 34% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Korean Air. According to our data, you can fly for as low as $623. Users have also found prices from $737 and $811 on Qatar Airways and EVA Air, respectively.

  • Can I find deals for flights from Dulles Intl to Chiang Mai that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Chiang Mai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Chiang Mai.

  • Can I find deals for business class flights from Dulles Intl to Chiang Mai?

    Yes. Cheapflights offers flight deals from Dulles Intl to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Chiang Mai?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Chiang Mai (average of $1,012). Flying from Washington, D.C. Dulles Intl Airport to Chiang Mai in December is currently the most expensive (average of $1,655). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Dulles Intl to Chiang Mai

Discover the top airline that operate flights from Dulles Intl to Chiang Mai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,057Average$1,785FlexibilityNo cancel feeOn-time81%

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