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Chiang Mai

$550+ Cheap flights from Reagan-National (DCA) 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.
DCA — CNX
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap flight deals from Reagan-National to Chiang Mai

Cheapest flights from Reagan-National to Chiang Mai
Explore the most affordable flight options available from Reagan-National to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.

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 11/25:04 pm
DCA
-
CNX
2 stops29h 21m
Multiple Airlines
Mon 11/1611:25 am
CNX
-
DCA
2 stops40h 43m
Multiple Airlines
Deal found 3/9$977
This China Airlines deal was found by Cheapflights users on 3/8. 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.
Thu 11/59:59 am
DCA
-
CNX
2 stops36h 26m
Multiple Airlines
Mon 11/1611:25 am
CNX
-
DCA
2 stops40h 43m
Multiple Airlines
Deal found 3/8$1,057
This SmartFares deal was found by Cheapflights users on 3/8. 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.
Tue 5/56:59 pm
DCA
-
CNX
2 stops28h 21m
Multiple Airlines
Thu 6/1111:20 am
CNX
-
DCA
2 stops45h 39m
Multiple Airlines
Deal found 3/8$1,092
This IEagle deal was found by Cheapflights users on 3/8. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:59 am
DCA
-
CNX
2 stops37h 26m
Multiple Airlines
Wed 4/2911:35 am
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Deal found 3/8$1,099
This IEagle 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:41 pm
DCA
-
CNX
2 stops28h 44m
Multiple Airlines
Tue 4/2811:35 am
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Deal found 3/7$1,116
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.
Thu 11/59:59 am
DCA
-
CNX
2 stops36h 36m
EVA Air
Mon 11/1611:50 am
CNX
-
DCA
2 stops44h 10m
EVA Air
Deal found 3/7$1,117
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.
Sun 10/189:59 am
DCA
-
CNX
2 stops37h 26m
EVA Air
Mon 11/1611:50 am
CNX
-
DCA
2 stops42h 09m
EVA Air
Deal found 3/10$1,127
This SmartFares deal was found by Cheapflights users on 3/8. 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.
Fri 5/16:59 pm
DCA
-
CNX
2 stops28h 21m
Multiple Airlines
Fri 5/1511:20 am
CNX
-
DCA
2 stops43h 46m
Multiple Airlines
Deal found 3/8$1,156
This BusinessClass 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:59 pm
DCA
-
CNX
2 stops28h 21m
Multiple Airlines
Thu 9/311:20 am
CNX
-
DCA
2 stops39h 48m
Multiple Airlines
Deal found 3/9$1,236

Find flight deals from Reagan-National to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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

$1,092
(SmartFares)

One-way from

$550
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$1,186
Provider with most accurate pricing for Washington, D.C. Reagan-National-Chiang Mai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Chiang Mai flights.
Search Deals
From Washington, D.C. Reagan-National to Chiang Mai
Search Deals
One-way flight from Washington, D.C. Reagan-National to Chiang Mai
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($394 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($117 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 Reagan-National 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. Reagan-National 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

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 5/5

6:59 pm-10:20 am

2 stops28h 21m

Chiang Mai

Thu 6/11

11:20 am-9:59 pm

2 stops45h 39m

$1,092

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 4/22

9:59 am-10:25 am

2 stops37h 26m

Chiang Mai

Wed 4/29

11:35 am-8:00 pm

2 stops43h 25m

$1,099

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Fri 5/1

6:59 pm-10:20 am

2 stops28h 21m

Chiang Mai

Fri 5/15

11:20 am-8:06 pm

2 stops43h 46m

$1,156

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 4/21

6:41 pm-10:25 am

2 stops28h 44m

Chiang Mai

Tue 4/28

1:40 pm-9:59 pm

3 stops43h 19m

$1,206
Quickest round-trip

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sat 8/8

6:59 pm-10:20 am

2 stops28h 21m

Chiang Mai

Thu 9/3

11:20 am-4:08 pm

2 stops39h 48m

$1,236

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sat 8/8

9:59 am-10:20 am

2 stops37h 21m

Chiang Mai

Thu 9/3

11:20 am-9:59 pm

2 stops45h 39m

$1,240

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 8/9

6:59 pm-10:20 am

2 stops28h 21m

Chiang Mai

Thu 9/3

11:20 am-4:08 pm

2 stops39h 48m

$1,283

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sat 4/25

9:59 am-10:25 am

2 stops37h 26m

Chiang Mai

Sat 5/2

11:35 am-5:59 pm

2 stops41h 24m

$1,303

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 6/8

9:59 am-10:20 am

2 stops37h 21m

Chiang Mai

Mon 8/31

11:20 am-8:00 pm

2 stops43h 40m

$1,593

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 7/28

9:59 am-10:20 am

2 stops37h 21m

Chiang Mai

Tue 8/4

11:20 am-9:59 pm

2 stops45h 39m

$1,677

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Reagan-National 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 Reagan-National to Chiang Mai in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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. Reagan-National 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. Reagan-National Airport-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National 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. Reagan-National 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. Reagan-National 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 Reagan-National to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Reagan-National 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 March 12, 2026.
Peruse reviews from past customers who have flown with Delta from Washington, D.C. Reagan-National Airport to Chiang Mai to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,286 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,286 reviews
Delta
7.9
Good
8,286 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

    Chiang Mai (CNX), located 1.9 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Reagan-National to Chiang Mai. 1 airline have flights to Chiang Mai from Washington, D.C. Reagan-National on a regular basis. Booking flights from Washington, D.C. Reagan-National to Chiang Mai should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National per day.

  • Can I find deals for flights from Reagan-National to Chiang Mai that include hotel bookings?

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

  • How can I find direct flights from Reagan-National to Chiang Mai?

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

  • Can I find deals for business class flights from Reagan-National to Chiang Mai?

    Yes. Cheapflights offers flight deals from Reagan-National 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 airline flying from Reagan-National to Chiang Mai

Discover the top airline that operate flights from Reagan-National 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
DeltaCheapest$1,068Average$1,128FlexibilityNo cancel feeOn-timeN/A

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