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Cheap flights from Washington, D.C. Reagan-National Airport to Chiang Mai from $490

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Chiang Mai departing on 2/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Chiang Mai

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:40 am - 10:55 pmDCA-CNX
28h 15m2 stops
Delta Logo
12:15 am - 10:16 pmCNX-DCA
33h 01m2 stops
$1,079Delta
Find Deal
Mon, Mar 23 - Wed, Mar 25
Delta Logo
7:30 pm - 10:55 pmDCA-CNX
40h 25m2 stops
Delta Logo
12:15 am - 11:20 pmCNX-DCA
34h 05m2 stops
$1,084Delta
Find Deal
Sun, Mar 22 - Wed, Mar 25
EVA Air Logo
9:59 am - 10:35 amDCA-CNX
36h 36m2 stops
EVA Air Logo
11:50 am - 5:56 pmCNX-DCA
42h 06m2 stops
$1,085EVA Air
Find Deal
Wed, Jan 21 - Mon, Feb 9
China Airlines Logo
5:01 pm - 10:25 amDCA-CNX
29h 24m2 stops
China Airlines Logo
11:25 am - 9:59 pmCNX-DCA
46h 34m2 stops
$1,088China Airlines
Find Deal
Mon, Feb 2 - Thu, Feb 12
China Airlines Logo
9:59 am - 10:25 amDCA-CNX
36h 26m2 stops
China Airlines Logo
11:25 am - 5:59 pmCNX-DCA
42h 34m2 stops
$1,089China Airlines
Find Deal
Wed, Jan 21 - Sun, Feb 15
Korean Air Logo
5:00 pm - 10:55 pmDCA-CNX
42h 55m2 stops
Korean Air Logo
12:15 am - 1:25 pmCNX-DCA
24h 10m2 stops
$1,090Korean Air
Find Deal
Sun, Mar 22 - Wed, Mar 25
Delta Logo
7:40 am - 10:55 pmDCA-CNX
28h 15m2 stops
Delta Logo
12:15 am - 11:20 pmCNX-DCA
34h 05m2 stops
$1,119Delta
Find Deal
Mon, Mar 23 - Thu, Mar 26
Korean Air Logo
10:00 am - 10:55 pmDCA-CNX
25h 55m2 stops
Korean Air Logo
12:15 am - 1:25 pmCNX-DCA
24h 10m2 stops
$1,124Korean Air
Find Deal
Mon, Mar 23 - Thu, Mar 26
Korean Air Logo
10:00 am - 10:55 pmDCA-CNX
25h 55m2 stops
Korean Air Logo
12:15 am - 1:25 pmCNX-DCA
24h 10m2 stops
$1,164Korean Air
Find Deal
Sun, Mar 22 - Thu, Mar 26
China Airlines Logo
5:30 pm - 10:25 amDCA-CNX
29h 55m2 stops
China Airlines Logo
11:25 am - 8:41 pmCNX-DCA
44h 16m2 stops
$1,166China Airlines
Find Deal
Mon, Mar 23 - Fri, Mar 27

Delta flights from Washington, D.C. Reagan-National Airport to Chiang Mai

Our best Delta deals on Washington, D.C. Reagan-National Airport to Chiang Mai flight tickets
Delta
Mar 23
DCA7:40 amWashington, D.C. Reagan-National
28h 15m
2 stops
CNX10:55 pmChiang Mai
Mar 25
CNX12:15 amChiang Mai
33h 01m
2 stops
DCA10:16 pmWashington, D.C. Reagan-National
$1,079
Find similar
Delta
Mar 22
DCA7:30 pmWashington, D.C. Reagan-National
40h 25m
2 stops
CNX10:55 pmChiang Mai
Mar 25
CNX12:15 amChiang Mai
34h 05m
2 stops
DCA11:20 pmWashington, D.C. Reagan-National
$1,084
Find similar
Delta
Mar 23
DCA7:40 amWashington, D.C. Reagan-National
28h 15m
2 stops
CNX10:55 pmChiang Mai
Mar 26
CNX12:15 amChiang Mai
34h 05m
2 stops
DCA11:20 pmWashington, D.C. Reagan-National
$1,119
Find similar

EVA Air flights from Washington, D.C. Reagan-National Airport to Chiang Mai

Our best EVA Air deals on Washington, D.C. Reagan-National Airport to Chiang Mai flight tickets
EVA Air
Jan 21
DCA9:59 amWashington, D.C. Reagan-National
36h 36m
2 stops
CNX10:35 amChiang Mai
Feb 9
CNX11:50 amChiang Mai
42h 06m
2 stops
DCA5:56 pmWashington, D.C. Reagan-National
$1,085
Find similar
EVA Air
Jan 5
DCA6:57 pmWashington, D.C. Reagan-National
51h 38m
2 stops
CNX10:35 amChiang Mai
Jan 11
CNX11:50 amChiang Mai
44h 10m
2 stops
DCA8:00 pmWashington, D.C. Reagan-National
$1,677
Find similar
EVA Air
Dec 23
DCA9:59 amWashington, D.C. Reagan-National
36h 36m
2 stops
CNX10:35 amChiang Mai
Jan 6
CNX11:50 amChiang Mai
46h 09m
2 stops
DCA9:59 pmWashington, D.C. Reagan-National
$2,615
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated November 13, 2025.
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 3/23

7:40 am-10:55 pm

2 stops28h 15m

Chiang Mai

Wed 3/25

12:15 am-10:16 pm

2 stops33h 01m

$1,079

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 3/22

7:30 pm-10:55 pm

2 stops40h 25m

Chiang Mai

Wed 3/25

12:15 am-11:20 pm

2 stops34h 05m

$1,084

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 1/21

9:59 am-10:35 am

2 stops36h 36m

Chiang Mai

Mon 2/9

11:50 am-5:56 pm

2 stops42h 06m

$1,085

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 2/2

5:01 pm-10:25 am

2 stops29h 24m

Chiang Mai

Thu 2/12

11:25 am-9:59 pm

2 stops46h 34m

$1,088

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 1/21

9:59 am-10:25 am

2 stops36h 26m

Chiang Mai

Sun 2/15

11:25 am-5:59 pm

2 stops42h 34m

$1,089

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 3/22

5:00 pm-10:55 pm

2 stops42h 55m

Chiang Mai

Wed 3/25

12:15 am-1:25 pm

2 stops24h 10m

$1,090

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 3/23

7:40 am-10:55 pm

2 stops28h 15m

Chiang Mai

Thu 3/26

12:15 am-11:20 pm

2 stops34h 05m

$1,119

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 3/23

10:00 am-10:55 pm

2 stops25h 55m

Chiang Mai

Thu 3/26

12:15 am-1:25 pm

2 stops24h 10m

$1,124

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 3/22

10:00 am-10:55 pm

2 stops25h 55m

Chiang Mai

Thu 3/26

12:15 am-1:25 pm

2 stops24h 10m

$1,164

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 3/23

5:30 pm-10:25 am

2 stops29h 55m

Chiang Mai

Fri 3/27

11:25 am-8:41 pm

2 stops44h 16m

$1,166

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chiang Mai from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Chiang Mai

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Chiang Mai?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Chiang Mai is on a Monday. Travelers who choose to depart for Chiang Mai on a Monday will often find tickets for as low as $1,286. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Reagan-National Airport to Chiang Mai for around $1,704.

What is the cheapest time of day to depart on your flight to Chiang Mai?

Flying to Chiang Mai from Washington, D.C. Reagan-National Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,300 when looking at flights departing in the evening. Flights to Chiang Mai are more costly in the afternoon, with an average ticket price of $1,718. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Washington, D.C. Reagan-National Airport to Chiang Mai

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Chiang Mai according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Chiang Mai (DCA to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Chiang Mai

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Chiang Mai. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Chiang Mai.
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  • How far is Washington, D.C. Reagan-National to Chiang Mai by plane?

    Chiang Mai is 8440.1 mi away from Washington, D.C. Reagan-National. Flights usually cover this in 25h 55m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Chiang Mai Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Chiang Mai Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Chiang Mai Airport?

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Chiang Mai Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Chiang Mai Airport.

  • What documentation or ID do you need to fly to Chiang Mai Airport?

    The travel and health documents you'll need for your trip to Chiang Mai Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chiang Mai Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Chiang Mai?

Best airlines flying from Washington, D.C. Reagan-National Airport to Chiang Mai

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Chiang Mai with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $1,068Free CancellationRating
7.9
8,007 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Chiang Mai?

Finding the right flight to Chiang Mai from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chiang Mai quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Chiang Mai with flexible booking policies on momondo?

momondo does allow users to show only those flights to Chiang Mai from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Chiang Mai?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Chiang Mai.

I’m not ready to book a flight from Washington, D.C. to Chiang Mai right now. Can momondo alert me if prices change?

Price alerts on flights to Chiang Mai from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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