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Chiang Mai

$711+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CNX
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,127
(oojo)

One-way from

$945
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$2,486
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Chiang Mai flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Chiang Mai flights.
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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. 11% potential increase in price ($224 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This FlightHub deal was found by Cheapflights users on 4/29. 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 9/19:00 pmIAD - CNX
2 stops32h 15mMultiple Airlines
Tue 9/3011:55 amCNX - IAD
2 stops31h 45mMultiple Airlines
Deal found 4/29$1,117
This oojo deal was found by Cheapflights users on 4/28. 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 5/19:00 pmIAD - CNX
2 stops25h 20mQatar Airways
Sun 5/118:00 pmCNX - IAD
2 stops54h 40mQatar Airways
Deal found 4/28$1,149
This oojo deal was found by Cheapflights users on 4/27. 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 12/259:30 pmIAD - CNX
1 stop20h 25mEtihad Airways
Mon 3/238:45 amCNX - IAD
1 stop43h 20mEtihad Airways
Deal found 4/27$1,452
This oojo deal was found by Cheapflights users on 4/27. 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 12/256:55 pmIAD - CNX
2 stops27h 40mEVA Air
Mon 3/2311:50 amCNX - IAD
2 stops28h 59mEVA Air
Deal found 4/27$1,491
This Ovago deal was found by Cheapflights users on 4/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:00 pmIAD - CNX
1 stop35h 50mAir China
Mon 10/1311:05 pmCNX - IAD
1 stop31h 25mAir China
Deal found 4/28$1,510
This FlightHub deal was found by Cheapflights users on 4/29. 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 8/105:45 pmIAD - CNX
2 stops42h 55mAsiana Airlines
Fri 8/2212:45 amCNX - IAD
2 stops31h 36mAsiana Airlines
Deal found 4/29$1,581
This FlightHub deal was found by Cheapflights users on 4/28. 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 5/301:30 pmIAD - CNX
2 stops38h 20mTurkish Airlines
Fri 6/209:10 pmCNX - IAD
2 stops33h 35mTurkish Airlines
Deal found 4/28$1,673
This oojo deal was found by Cheapflights users on 4/28. 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.
Fri 9/51:15 pmIAD - CNX
1 stop44h 30mKorean Air
Tue 9/1611:15 pmCNX - IAD
1 stop22h 40mKorean Air
Deal found 4/28$1,818
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 12/276:57 pmIAD - CNX
2 stops40h 08mDelta
Thu 1/2212:15 amCNX - IAD
2 stops28h 21mDelta
Deal found 4/28$1,902
This Emirates deal was found by Cheapflights users on 4/27. 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.
Sun 12/2810:30 amIAD - CNX
2 stops44h 25mEmirates
Mon 3/237:45 pmCNX - IAD
2 stops48h 15mEmirates
Deal found 4/27$2,208

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 April 29, 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

9:00 pm-4:15 pm

2 stops32h 15m

Chiang Mai

Tue 9/30

11:55 am-8:40 am

2 stops31h 45m

$1,117

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 8/18

9:00 pm-9:20 am

2 stops25h 20m

Chiang Mai

Sun 8/31

12:35 pm-3:40 pm

2 stops38h 05m

$1,299

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 9/30

11:00 pm-9:50 pm

1 stop35h 50m

Chiang Mai

Mon 10/13

11:05 pm-7:30 pm

1 stop31h 25m

$1,510

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 8/10

5:45 pm-11:40 pm

2 stops42h 55m

Chiang Mai

Fri 8/22

12:45 am-9:21 pm

2 stops31h 36m

$1,581

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 5/30

1:30 pm-2:50 pm

2 stops38h 20m

Chiang Mai

Fri 6/20

9:10 pm-7:45 pm

2 stops33h 35m

$1,673

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 6/11

6:15 pm-10:25 am

2 stops29h 10m

Chiang Mai

Sat 6/21

11:35 am-6:50 am

2 stops30h 15m

$1,792

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 9/5

1:15 pm-8:45 pm

1 stop44h 30m

Chiang Mai

Tue 9/16

11:15 pm-10:55 am

1 stop22h 40m

$1,818

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 9/1

8:30 pm-9:55 pm

2 stops38h 25m

Chiang Mai

Tue 9/30

11:15 pm-10:55 am

1 stop22h 40m

$2,167

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 6/13

5:45 pm-1:45 pm

2 stops33h 00m

Chiang Mai

Fri 6/20

8:00 pm-3:25 pm

2 stops54h 25m

$3,824

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sat 6/7

7:59 pm-12:05 pm

3 stops53h 06m

$711

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 12 results
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Dulles Intl Airport-Chiang Mai flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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

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 April 29, 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 April 29, 2025.
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,066 reviews
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very good
732 reviews
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
442 reviews
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
SWISS
7.5
Good
1,588 reviews
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Turkish Airlines
7.3
Good
3,788 reviews
Korean Air
8.4
Very good
1,066 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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?

    China Airlines, at $1,591, 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 Turkish Airlines and Asiana Airlines. These flights start at 4% 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.

  • 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 $1,011). Flying from Washington, D.C. Dulles Intl Airport to Chiang Mai in December is currently the most expensive (average of $1,678). 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

Browse thousands of different options on Cheapflights for your next trip

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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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,519Average$1,781FlexibilityNo cancel feeOn-time81%

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