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Chiang Mai

$367+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CNX
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
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 March 12, 2026.

This oojo deal was found by Cheapflights users on 3/9. 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 4/233:10 pm
IAD
-
CNX
2 stops55h 10m
Etihad Airways
Thu 4/309:30 am
CNX
-
IAD
1 stop35h 15m
Etihad Airways
Deal found 3/9$904
This FlightHub deal was found by Cheapflights users on 3/11. 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.
Fri 3/203:35 pm
IAD
-
CNX
2 stops32h 45m
Etihad Airways
Fri 4/39:30 am
CNX
-
IAD
1 stop35h 15m
Etihad Airways
Deal found 3/11$941
This oojo deal was found by Cheapflights users on 3/7. 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 9/301:15 am
IAD
-
CNX
1 stop22h 10m
EVA Air
Wed 10/2111:35 am
CNX
-
IAD
1 stop21h 25m
EVA Air
Deal found 3/7$946
This Trip.com deal was found by Cheapflights users on 3/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:10 pm
IAD
-
CNX
2 stops33h 05m
Multiple Airlines
Thu 10/2210:10 am
CNX
-
IAD
2 stops34h 35m
Multiple Airlines
Deal found 3/7$964
This FlightHub deal was found by Cheapflights users on 3/9. 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.
Thu 4/23:10 pm
IAD
-
CNX
2 stops55h 10m
Etihad Airways
Thu 4/99:30 am
CNX
-
IAD
1 stop35h 15m
Etihad Airways
Deal found 3/9$973
This China Airlines deal was found by Cheapflights users on 3/9. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:38 pm
IAD
-
CNX
2 stops28h 47m
Multiple Airlines
Mon 11/1611:25 am
CNX
-
IAD
2 stops41h 01m
Multiple Airlines
Deal found 3/9$977
This oojo deal was found by Cheapflights users on 3/10. 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.
Sat 10/171:15 am
IAD
-
CNX
1 stop22h 10m
EVA Air
Mon 11/1611:50 am
CNX
-
IAD
1 stop21h 05m
EVA Air
Deal found 3/10$987
This SmartFares deal was found by Cheapflights users on 3/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:38 pm
IAD
-
CNX
2 stops29h 42m
Multiple Airlines
Sun 11/1511:25 am
CNX
-
IAD
2 stops32h 03m
Multiple Airlines
Deal found 3/7$1,008
This BusinessClass deal was found by Cheapflights users on 3/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:38 pm
IAD
-
CNX
2 stops29h 42m
Multiple Airlines
Mon 11/1611:25 am
CNX
-
IAD
2 stops32h 03m
Multiple Airlines
Deal found 3/10$1,011

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$904
(oojo)

One-way from

$367
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,421
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. 15% potential increase in price ($243 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 12, 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
Quickest round-trip

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 9/2

1:15 am-10:25 am

1 stop22h 10m

Chiang Mai

Mon 9/7

11:35 am-10:00 pm

1 stop21h 25m

$1,068

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 4/26

10:55 am-7:10 pm

2 stops45h 15m

Chiang Mai

Sun 5/3

2:35 pm-8:40 am

2 stops53h 05m

$1,378

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 6/8

8:20 pm-11:15 am

2 stops27h 55m

Chiang Mai

Fri 6/19

8:00 pm-3:40 pm

2 stops30h 40m

$1,599

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 6/22

6:00 am-10:20 am

2 stops41h 20m

Chiang Mai

Fri 7/31

11:20 am-3:05 pm

2 stops38h 45m

$1,830

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 4/22

11:00 am-1:45 pm

3 stops39h 45m

Chiang Mai

Wed 4/29

2:35 pm-4:05 pm

3 stops36h 30m

$1,933

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 4/5

9:00 pm-1:40 pm

2 stops29h 40m

Chiang Mai

Sun 4/12

11:55 am-4:05 pm

3 stops39h 10m

$1,958

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 4/21

8:20 pm-9:20 am

3 stops50h 00m

Chiang Mai

Sat 5/9

10:10 am-8:40 am

3 stops33h 30m

$1,968
Cheapest one-way

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 8/26

1:20 pm-7:25 pm

2 stops43h 05m

$367

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 4/15

11:00 am-9:20 am

2 stops35h 20m

$547

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 5/3

7:10 am-10:20 am

2 stops40h 10m

$547

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 14 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
SmartFaresPrice Accuracy1 starTrust Score*1 star

*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.

Cheapflights Insights

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

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Chiang Mai?

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 March 12, 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
8.4
Very good
1,370 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
EVA Air
8.4
Very good
1,370 reviews
EVA Air
8.4
Very good
1,370 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Korean Air
8.4
Very good
1,202 reviews
EVA Air
8.4
Very good
1,370 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Delta
7.9
Good
8,280 reviews
EVA Air
8.4
Very good
1,370 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

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?

    EVA Air can get you from Washington, D.C. Dulles Intl Airport to Chiang Mai in just under 22h 10m. 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 $673, 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 49% 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

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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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$673Average$1,412FlexibilityNo cancel feeOn-time81%
DeltaCheapest$798Average$1,143FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$1,040Average$1,355FlexibilityNo cancel feeOn-time74%

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