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Chiang Mai

$1,036+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CNX
Jul 15 — Jul 221
Wed 7/15
Wed 7/22
1 adult, Economy
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Cheap 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 15, 2026.

This oojo deal was found by Cheapflights users on 6/10. 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.
Thu 9/249:00 pm
IAD
-
CNX
2 stops35h 10m
Multiple Airlines
Wed 10/144:55 pm
CNX
-
IAD
2 stops33h 45m
Multiple Airlines
Deal found 6/10$1,109
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:00 pm
IAD
-
CNX
2 stops25h 20m
Multiple Airlines
Thu 10/83:30 pm
CNX
-
IAD
2 stops28h 25m
Multiple Airlines
Deal found 6/11$1,121
This oojo deal was found by Cheapflights users on 6/15. 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.
Sun 11/110:40 am
IAD
-
CNX
2 stops34h 45m
Multiple Airlines
Mon 11/169:05 pm
CNX
-
IAD
2 stops30h 50m
Multiple Airlines
Deal found 6/15$1,125
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.
Mon 8/109:00 pm
IAD
-
CNX
2 stops30h 50m
Multiple Airlines
Wed 9/93:30 pm
CNX
-
IAD
2 stops28h 15m
Multiple Airlines
Deal found 6/11$1,182
This FlightHub deal was found by Cheapflights users on 6/13. 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.
Wed 9/231:15 am
IAD
-
CNX
2 stops47h 00m
EVA Air
Wed 10/1411:35 am
CNX
-
IAD
1 stop21h 25m
EVA Air
Deal found 6/13$1,217
This oojo deal was found by Cheapflights users on 6/10. 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.
Thu 11/125:14 pm
IAD
-
CNX
2 stops29h 21m
Multiple Airlines
Wed 11/259:25 am
CNX
-
IAD
2 stops23h 30m
Multiple Airlines
Deal found 6/10$1,258

Find 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 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,109
(oojo)

One-way from

$1,036
(FlightHub)

Popular in

June

Cheapest in

May

Average price

$1,696
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Chiang Mai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Chiang Mai flights.
Search Deals
From Washington, D.C. Dulles Intl to Chiang Mai
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Chiang Mai
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 15, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 8/7

1:50 am-11:15 am

2 stops46h 25m

Chiang Mai

Thu 9/3

11:35 am-5:40 am

2 stops29h 05m

$1,359
Quickest round-trip

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 7/8

1:20 pm-11:50 pm

1 stop23h 30m

Chiang Mai

Sat 7/18

10:30 am-11:15 am

2 stops35h 45m

$1,850

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 7/22

1:30 pm-8:45 pm

1 stop44h 15m

Chiang Mai

Wed 8/5

9:45 pm-4:42 pm

2 stops29h 57m

$2,100

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 8/10

1:30 pm-8:45 pm

1 stop44h 15m

Chiang Mai

Wed 9/9

9:45 pm-11:05 am

1 stop24h 20m

$2,314

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 7/1

6:03 am-10:25 am

2 stops41h 22m

Chiang Mai

Sat 8/1

11:35 am-10:30 pm

1 stop21h 55m

$2,334

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sat 8/8

9:00 pm-11:40 am

2 stops27h 40m

Chiang Mai

Thu 9/3

11:55 am-3:40 pm

3 stops38h 45m

$2,510
Cheapest one-way

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 6/23

6:03 am-10:25 am

2 stops41h 22m

$1,036

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Thu 6/25

12:50 pm-1:45 pm

2 stops37h 55m

$1,048
Quickest one-way

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 6/24

9:30 am-9:45 am

3 stops37h 15m

$1,113

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sat 6/27

4:26 pm-8:45 pm

2 stops65h 19m

$1,128

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Compare providers for flights from Dulles Intl to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Chiang Mai in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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 15, 2026.
Get a feel of what it's like to fly with EVA Air,Korean Air, andDelta from Washington, D.C. Dulles Intl Airport to Chiang Mai by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very good
1,474 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!
EVA Air
8.5
Very good
1,474 reviews
EVA Air
8.5
Very good
1,474 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!
Korean Air
8.4
Very good
1,218 reviews
EVA Air
8.5
Very good
1,474 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!
Delta
7.9
Good
8,398 reviews
EVA Air
8.5
Very good
1,474 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!

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 3 airlines have 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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Chiang Mai?

    Korean Air can get you from Washington, D.C. Dulles Intl Airport to Chiang Mai in just under 44h 15m. Your travel time can differ by up to . Airlines will cover a distance of 8436 mi.

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

    Korean Air, at $741, 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 Delta and EVA Air. These flights start at 42% lower than the current average price 3 months from now.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Dulles Intl to Chiang Mai

Discover the top 3 airlines 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 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$741Average$1,412FlexibilityNo cancel feeOn-time81%
DeltaCheapest$798Average$1,259FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$1,040Average$1,292FlexibilityNo cancel feeOn-time74%

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