What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Chiang Mai one-way?

One-way options have recently been found by users for as low as $588 on China Airlines. Other airlines that offer cheap prices include Korean Air from $610 and EVA Air from $665 one-way.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Chiang Mai?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Chiang Mai (average of $1,010). Flying from Washington, D.C. Reagan-National Airport to Chiang Mai in December is currently the most expensive (average of $1,624). 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.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Chiang Mai?

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Chiang Mai flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 day to fly round-trip from Washington, D.C. Reagan-National Airport to Chiang Mai?

Flying to your destination on a Monday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Chiang Mai. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Chiang Mai?

Our data shows that June tends to be the cheapest month to fly to Chiang Mai from Washington, D.C. Reagan-National Airport. Users have commonly found prices around $1,614 for the month, but tickets can be as low as $1,187. Due to multiple factors, prepare for potentially higher prices in April.

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.

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. 0 airlines 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.

$588+ Flights from Washington, D.C. Reagan-National Airport to Chiang Mai

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1. Tell us where you want to go

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Cheap flight deals from Reagan-National to Chiang Mai

Round-trip from	$1,035 (Delta)
One-way from	$588 (oojo)
Popular in	April
Cheapest in	June
Average price	$1,666

From Washington, D.C. Reagan-National to Chiang Mai

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One-way flight from Washington, D.C. Reagan-National to Chiang Mai

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($131 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($80 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find 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 August 2, 2025.

Mon 8/188:45 pmDCA - CNX

2 stops38h 10mDelta

Mon 9/111:15 pmCNX - DCA

2 stops44h 56mDelta

Deal found 7/30

$1,028

Wed 8/278:59 amDCA - CNX

2 stops38h 21mChina Airlines

Wed 9/311:20 amCNX - DCA

2 stops44h 39mChina Airlines

Deal found 7/31

$1,062

Mon 8/117:38 pmDCA - CNX

2 stops39h 17mKorean Air

Mon 8/2511:15 pmCNX - DCA

2 stops35h 31mKorean Air

Deal found 8/1

$1,084

Tue 8/266:59 pmDCA - CNX

2 stops28h 26mEVA Air

Tue 9/211:35 amCNX - DCA

2 stops41h 24mEVA Air

Deal found 7/30

$1,106

Sun 9/143:30 pmDCA - CNX

3 stops30h 50mMultiple Airlines

Sat 9/2012:45 amCNX - DCA

2 stops32h 06mMultiple Airlines

Deal found 7/30

$1,268

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 August 2, 2025.

Mon 8/188:45 pmDCA - CNX

2 stops38h 10mDelta

Mon 9/111:15 pmCNX - DCA

2 stops44h 56mDelta

Deal found 7/30

$1,028

Wed 8/278:59 amDCA - CNX

2 stops38h 21mChina Airlines

Wed 9/311:20 amCNX - DCA

2 stops44h 39mChina Airlines

Deal found 7/31

$1,062

Mon 8/117:38 pmDCA - CNX

2 stops39h 17mKorean Air

Mon 8/2511:15 pmCNX - DCA

2 stops35h 31mKorean Air

Deal found 8/1

$1,084

Tue 8/266:59 pmDCA - CNX

2 stops28h 26mEVA Air

Tue 9/211:35 amCNX - DCA

2 stops41h 24mEVA Air

Deal found 7/30

$1,106

Sun 9/143:30 pmDCA - CNX

3 stops30h 50mMultiple Airlines

Sat 9/2012:45 amCNX - DCA

2 stops32h 06mMultiple Airlines

Deal found 7/30

$1,268

Last-minute flights from Reagan-National to Chiang Mai
Discover last-minute flight deals from Reagan-National to Chiang Mai. Data last updated August 2, 2025 and is based on user searches.

Thu 8/76:20 pmDCA - CNX

2 stops40h 35mDelta

Mon 8/2511:15 pmCNX - DCA

2 stops44h 56mDelta

Deal found 7/30

$1,028

Sun 8/106:58 pmDCA - CNX

2 stops28h 27mEVA Air

Sat 8/2311:35 amCNX - DCA

2 stops41h 24mEVA Air

Deal found 8/1

$1,353

Sun 8/106:58 pmDCA - CNX

2 stops41h 42mMultiple Airlines

Fri 8/2212:45 amCNX - DCA

2 stops31h 14mMultiple Airlines

Deal found 7/30

$1,853

Mon 8/117:38 pmDCA - CNX

2 stops39h 17mKorean Air

Mon 8/2511:15 pmCNX - DCA

2 stops35h 31mKorean Air

Deal found 8/1

$1,084

Mon 8/188:45 pmDCA - CNX

2 stops38h 10mDelta

Mon 9/111:15 pmCNX - DCA

2 stops44h 56mDelta

Deal found 7/30

$1,028

Tue 8/266:59 pmDCA - CNX

2 stops28h 26mEVA Air

Tue 9/211:35 amCNX - DCA

2 stops41h 24mEVA Air

Deal found 7/30

$1,106

Wed 8/278:59 amDCA - CNX

2 stops38h 21mChina Airlines

Wed 9/311:20 amCNX - DCA

2 stops44h 39mChina Airlines

Deal found 7/31

$1,062

Wed 8/276:30 amDCA - CNX

2 stops30h 10mMultiple Airlines

Tue 9/212:45 amCNX - DCA

2 stops33h 11mMultiple Airlines

Deal found 7/30

$1,413

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 August 2, 2025.

Sun 8/318:00 amDCA - CNX

2 stops39h 20mChina Airlines

Deal found 7/31

$588

Sun 8/318:59 amDCA - CNX

3 stops37h 51mMultiple Airlines

Deal found 7/31

$603

Tue 10/148:25 amDCA - CNX

2 stops26h 30mKorean Air

Deal found 8/1

$610

Fri 8/156:58 pmDCA - CNX

2 stops28h 27mEVA Air

Deal found 8/1

$665

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 8/18

8:45 pm-9:55 pm

2 stops38h 10m

Chiang Mai

Mon 9/1

11:15 pm-9:11 am

2 stops44h 56m

$1,028

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 8/27

8:59 am-10:20 am

2 stops38h 21m

Chiang Mai

Wed 9/3

11:20 am-8:59 pm

2 stops44h 39m

$1,062

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 8/11

7:38 pm-9:55 pm

2 stops39h 17m

Chiang Mai

Mon 8/25

11:15 pm-11:46 pm

2 stops35h 31m

$1,084

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 8/26

6:59 pm-10:25 am

2 stops28h 26m

Chiang Mai

Tue 9/2

11:35 am-5:59 pm

2 stops41h 24m

$1,106

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 9/14

3:30 pm-9:20 am

3 stops30h 50m

Chiang Mai

Sat 9/20

12:45 am-9:51 pm

2 stops32h 06m

$1,268

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 8/31

8:00 am-10:20 am

2 stops39h 20m

$588

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 8/31

8:59 am-9:50 am

3 stops37h 51m

$603

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 10/14

8:25 am-9:55 pm

2 stops26h 30m

$610

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Fri 8/15

6:58 pm-10:25 am

2 stops28h 27m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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 EVA Air, Korean Air, and China Airlines 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.

EVA Air

8.4

Very good

1,220 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very good

1,220 reviews

EVA Air

8.4

Very good

1,220 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Korean Air

8.4

Very good

1,122 reviews

EVA Air

8.4

Very good

1,220 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

China Airlines

8.3

Very good

755 reviews

EVA Air

8.4

Very good

1,220 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Delta

8.0

Very good

7,983 reviews

EVA Air

8.4

Very good

1,220 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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. 0 airlines 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.
What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Chiang Mai one-way?
One-way options have recently been found by users for as low as $588 on China Airlines. Other airlines that offer cheap prices include Korean Air from $610 and EVA Air from $665 one-way.
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.
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Chiang Mai?
Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Chiang Mai (average of $1,010). Flying from Washington, D.C. Reagan-National Airport to Chiang Mai in December is currently the most expensive (average of $1,624). 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.

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$588+ 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 8/31. 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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 August 2, 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 August 2, 2025.

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.

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

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?

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Chiang Mai one-way?

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?

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport 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.

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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 August 2, 2025.