How long is the flight from Washington, D.C. Reagan-National Airport to Chiang Mai?

There are many flights that can get you from Washington, D.C. Reagan-National Airport to Chiang Mai in 36h 36m. Fly via EVA Air or Delta to get the fastest option. There are 8441 mi between Washington, D.C. Reagan-National Airport and Chiang Mai. Both multi-stop and nonstop flights can be found to your destination and back.

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.

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).

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

When flying from Washington, D.C. Reagan-National Airport to Chiang Mai, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Chiang Mai flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-Chiang Mai flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$490+ Flights from Washington, D.C. Reagan-National Airport to Chiang Mai

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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 December 13, 2025.

Fri 12/268:00 amDCA - CNX

2 stops38h 35mMultiple Airlines

Fri 1/911:50 amCNX - DCA

2 stops40h 19mMultiple Airlines

Deal found 12/12

$2,504

Tue 12/239:59 amDCA - CNX

2 stops36h 36mEVA Air

Tue 1/611:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/12

$2,641

Tue 12/235:00 pmDCA - CNX

2 stops34h 55mMultiple Airlines

Tue 1/64:55 pmCNX - DCA

2 stops65h 04mMultiple Airlines

Deal found 12/11

$2,805

Best flights from Reagan-National to Chiang Mai
Discover carefully curated flight deals from Reagan-National to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 13, 2025.

Mon 3/29:59 amDCA - CNX

2 stops36h 36mEVA Air

Mon 4/1311:35 amCNX - DCA

2 stops40h 54mEVA Air

Deal found 12/11

$1,097

Thu 1/2210:05 pmDCA - CNX

2 stops36h 50mDelta

Mon 1/2612:15 amCNX - DCA

2 stops32h 17mDelta

Deal found 12/11

$1,168

Sun 1/256:56 pmDCA - CNX

2 stops55h 24mMultiple Airlines

Sun 2/13:35 pmCNX - DCA

2 stops40h 25mMultiple Airlines

Deal found 12/11

$1,173

Mon 3/910:10 amDCA - CNX

2 stops25h 45mKorean Air

Wed 3/1112:15 amCNX - DCA

2 stops24h 29mKorean Air

Deal found 12/10

$1,263

Fri 1/166:56 pmDCA - CNX

2 stops51h 39mEVA Air

Thu 1/2911:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/11

$1,157

Mon 1/55:00 pmDCA - CNX

2 stops29h 35mMultiple Airlines

Tue 3/1711:50 amCNX - DCA

2 stops40h 42mMultiple Airlines

Deal found 12/10

$1,258

Fri 1/236:56 pmDCA - CNX

2 stops51h 39mEVA Air

Thu 4/2311:35 amCNX - DCA

2 stops43h 26mEVA Air

Deal found 12/12

$1,186

Mon 1/55:00 pmDCA - CNX

2 stops29h 35mMultiple Airlines

Mon 3/1611:50 amCNX - DCA

2 stops41h 09mMultiple Airlines

Deal found 12/11

$1,259

Mon 1/126:56 pmDCA - CNX

2 stops51h 39mEVA Air

Sat 1/2411:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/12

$1,216

Sat 1/105:01 pmDCA - CNX

2 stops29h 34mEVA Air

Mon 1/1911:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/12

$1,285

Last-minute flights from Reagan-National to Chiang Mai
Discover last-minute flight deals from Reagan-National to Chiang Mai. Data last updated December 13, 2025 and is based on user searches.

Mon 1/55:00 pmDCA - CNX

2 stops29h 35mMultiple Airlines

Tue 3/1711:50 amCNX - DCA

2 stops40h 42mMultiple Airlines

Deal found 12/10

$1,258

Mon 1/55:00 pmDCA - CNX

2 stops29h 35mMultiple Airlines

Mon 3/1611:50 amCNX - DCA

2 stops41h 09mMultiple Airlines

Deal found 12/11

$1,259

Mon 1/126:56 pmDCA - CNX

2 stops51h 39mEVA Air

Sat 1/2411:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/12

$1,216

Fri 1/166:56 pmDCA - CNX

2 stops51h 39mEVA Air

Thu 1/2911:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/11

$1,157

Sun 1/189:59 amDCA - CNX

2 stops60h 36mMultiple Airlines

Fri 2/1311:50 amCNX - DCA

2 stops44h 15mMultiple Airlines

Deal found 12/10

$1,241

Thu 1/2210:05 pmDCA - CNX

2 stops36h 50mDelta

Mon 1/2612:15 amCNX - DCA

2 stops32h 17mDelta

Deal found 12/11

$1,168

Thu 1/229:59 amDCA - CNX

2 stops60h 36mMultiple Airlines

Wed 2/1111:50 amCNX - DCA

2 stops44h 15mMultiple Airlines

Deal found 12/11

$1,254

Fri 1/236:56 pmDCA - CNX

2 stops51h 39mEVA Air

Thu 4/2311:35 amCNX - DCA

2 stops43h 26mEVA Air

Deal found 12/12

$1,186

Sun 1/256:56 pmDCA - CNX

2 stops55h 24mMultiple Airlines

Sun 2/13:35 pmCNX - DCA

2 stops40h 25mMultiple Airlines

Deal found 12/11

$1,173

Tue 1/275:01 pmDCA - CNX

2 stops29h 24mChina Airlines

Tue 2/311:25 amCNX - DCA

2 stops40h 44mChina Airlines

Deal found 12/12

$1,051

One-way flights from Reagan-National to Chiang Mai
Search for one-way flight options from Reagan-National to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated December 13, 2025.

Sun 2/156:00 pmDCA - CNX

3 stops40h 55mMultiple Airlines

Deal found 12/11

$490

Sun 2/158:35 pmDCA - CNX

2 stops38h 20mDelta

Deal found 12/11

$566

Tue 2/36:59 amDCA - CNX

2 stops27h 56mDelta

Deal found 12/11

$591

Fri 1/166:56 pmDCA - CNX

2 stops51h 39mEVA Air

Deal found 12/10

$4,149

Find flight deals from Reagan-National to Chiang Mai

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,051 (oojo)
One-way from	$490 (Kiwi.com)
Popular in	April
Cheapest in	January
Average price	$1,643

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. 15% potential increase in price ($260 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($94 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 3/2

9:59 am-10:35 am

2 stops36h 36m

Chiang Mai

Mon 4/13

11:35 am-5:29 pm

2 stops40h 54m

$1,097

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Fri 1/16

6:56 pm-10:35 am

2 stops51h 39m

Chiang Mai

Thu 1/29

11:50 am-8:00 pm

2 stops44h 10m

$1,157

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Thu 1/22

10:05 pm-10:55 pm

2 stops36h 50m

Chiang Mai

Mon 1/26

12:15 am-8:32 pm

2 stops32h 17m

$1,168

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 1/25

6:56 pm-2:20 pm

2 stops55h 24m

Chiang Mai

Sun 2/1

3:35 pm-8:00 pm

2 stops40h 25m

$1,173

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Fri 1/23

6:56 pm-10:35 am

2 stops51h 39m

Chiang Mai

Thu 4/23

11:35 am-8:01 pm

2 stops43h 26m

$1,186

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 1/12

6:56 pm-10:35 am

2 stops51h 39m

Chiang Mai

Sat 1/24

11:50 am-8:00 pm

2 stops44h 10m

$1,216

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 1/5

5:00 pm-10:35 am

2 stops29h 35m

Chiang Mai

Tue 3/17

11:50 am-5:32 pm

2 stops40h 42m

$1,258

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 1/5

5:00 pm-10:35 am

2 stops29h 35m

Chiang Mai

Mon 3/16

11:50 am-5:59 pm

2 stops41h 09m

$1,259

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 3/9

10:10 am-10:55 pm

2 stops25h 45m

Chiang Mai

Wed 3/11

12:15 am-1:44 pm

2 stops24h 29m

$1,263

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sat 1/10

5:01 pm-10:35 am

2 stops29h 34m

Chiang Mai

Mon 1/19

11:50 am-8:00 pm

2 stops44h 10m

$1,285

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 14 results

Compare providers for flights from Reagan-National to Chiang Mai

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 December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy2 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust 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. Reagan-National Airport-Chiang Mai flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-Chiang Mai flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

8,009 reviews

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

8,009 reviews

Delta

7.9

Good

8,009 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

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.
How long is the flight from Washington, D.C. Reagan-National Airport to Chiang Mai?
There are many flights that can get you from Washington, D.C. Reagan-National Airport to Chiang Mai in 36h 36m. Fly via EVA Air or Delta to get the fastest option. There are 8441 mi between Washington, D.C. Reagan-National Airport and Chiang Mai. Both multi-stop and nonstop flights can be found to your destination and back.
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

Top airline flying from Reagan-National to Chiang Mai

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$1,068	Average$1,128	FlexibilityNo cancel fee	On-timeN/A

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$490+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Chiang Mai with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Chiang Mai

Cheapest flights from Reagan-National to Chiang MaiExplore 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 December 13, 2025.

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 December 13, 2025.

Find flight deals from Reagan-National to Chiang Mai

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Chiang Mai that are best for you.

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 December.

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.

Reviews of airlines servicing Chiang Mai

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.

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?

How long is the flight from Washington, D.C. Reagan-National Airport to Chiang Mai?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Reagan-National to Chiang Mai

100% Free

Book with Flexibility

Travel Smart

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 December 13, 2025.