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Cheap flights from Chiang Mai to Washington, D.C. from $652

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chiang Mai to Washington, D.C. departing on 3/19. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:35 am - 5:41 pm
CNX
-
DCA
41h 06m
2 stops
Multiple Airlines Logo
9:59 am - 10:25 am
DCA
-
CNX
37h 26m
2 stops
$1,038Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m
2 stops
Multiple Airlines Logo
9:59 am - 10:25 am
DCA
-
CNX
61h 26m
2 stops
$1,045Multiple Airlines
Tue, Apr 21 - Thu, May 28
Multiple Airlines Logo
11:35 am - 5:41 pm
CNX
-
DCA
41h 06m
2 stops
Multiple Airlines Logo
9:59 am - 10:25 am
DCA
-
CNX
37h 26m
2 stops
$1,179Multiple Airlines
Tue, Apr 14 - Fri, May 22
EVA Air Logo
11:50 am - 8:00 pm
CNX
-
DCA
43h 10m
2 stops
EVA Air Logo
9:59 am - 10:25 am
DCA
-
CNX
37h 26m
2 stops
$1,264EVA Air
Tue, Mar 24 - Tue, Aug 25
Multiple Airlines Logo
11:50 am - 8:00 pm
CNX
-
DCA
43h 10m
2 stops
Multiple Airlines Logo
6:59 pm - 10:25 am
DCA
-
CNX
28h 26m
2 stops
$1,270Multiple Airlines
Tue, Mar 24 - Wed, Aug 26
EVA Air Logo
11:50 am - 8:05 pm
CNX
-
DCA
44h 15m
2 stops
EVA Air Logo
6:41 pm - 10:35 am
DCA
-
CNX
28h 54m
2 stops
$1,298EVA Air
Mon, Mar 2 - Sun, Mar 22
Multiple Airlines Logo
11:50 am - 8:00 pm
CNX
-
DCA
43h 10m
2 stops
Multiple Airlines Logo
6:41 pm - 10:25 am
DCA
-
CNX
28h 44m
2 stops
$1,342Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
11:35 am - 9:59 pm
CNX
-
DCA
45h 24m
2 stops
Multiple Airlines Logo
6:59 pm - 10:25 am
DCA
-
CNX
28h 26m
2 stops
$1,565Multiple Airlines
Sun, Jun 14 - Sun, Jun 28
EVA Air Logo
11:50 am - 8:05 pm
CNX
-
DCA
43h 15m
2 stops
EVA Air Logo
6:41 pm - 10:35 am
DCA
-
CNX
28h 54m
2 stops
$1,573EVA Air
Sun, Mar 15 - Sun, Mar 22
Multiple Airlines Logo
7:25 pm - 7:58 pm
CNX
-
DCA
35h 33m
3 stops
Multiple Airlines Logo
11:00 am - 6:20 am
DCA
-
CNX
32h 20m
3 stops
$1,655Multiple Airlines
Sun, Jun 14 - Sun, Jun 28

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

Our best EVA Air deals on Chiang Mai to Washington, D.C. Reagan-National Airport flight tickets
EVA Air
Mar 24
CNX11:50 amChiang Mai
43h 10m
2 stops
DCA8:00 pmWashington, D.C. Reagan-National
Aug 25
DCA9:59 amWashington, D.C. Reagan-National
37h 26m
2 stops
CNX10:25 amChiang Mai
$1,264
EVA Air
Mar 2
CNX11:50 amChiang Mai
44h 15m
2 stops
DCA8:05 pmWashington, D.C. Reagan-National
Mar 22
DCA6:41 pmWashington, D.C. Reagan-National
28h 54m
2 stops
CNX10:35 amChiang Mai
$1,298
EVA Air
Mar 15
CNX11:50 amChiang Mai
43h 15m
2 stops
DCA8:05 pmWashington, D.C. Reagan-National
Mar 22
DCA6:41 pmWashington, D.C. Reagan-National
28h 54m
2 stops
CNX10:35 amChiang Mai
$1,573

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

Our best Delta deals on Chiang Mai to Washington, D.C. Reagan-National Airport flight tickets
Delta
Feb 25
CNX12:15 amChiang Mai
35h 13m
2 stops
DCA11:28 pmWashington, D.C. Reagan-National
Mar 2
DCA6:05 amWashington, D.C. Reagan-National
28h 50m
2 stops
CNX10:55 pmChiang Mai
$1,275
Delta
Feb 25
CNX12:15 amChiang Mai
33h 45m
2 stops
DCA10:00 pmWashington, D.C. Reagan-National
Mar 22
DCA10:00 pmWashington, D.C. Reagan-National
37h 55m
2 stops
CNX10:55 pmChiang Mai
$1,388

momondo Fare Finder

 
Customize your flight search to find flights from Chiang Mai to Washington, D.C. Reagan-National Airport 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 February 17, 2026.
Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 4/14

11:35 am-5:41 pm

2 stops41h 06m

Washington, D.C. Reagan-National

Tue 4/21

9:59 am-10:25 am

2 stops37h 26m

$1,038

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 4/21

11:35 am-8:00 pm

2 stops43h 25m

Washington, D.C. Reagan-National

Thu 5/28

9:59 am-10:25 am

2 stops61h 26m

$1,045

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 4/14

11:35 am-5:41 pm

2 stops41h 06m

Washington, D.C. Reagan-National

Fri 5/22

9:59 am-10:25 am

2 stops37h 26m

$1,179

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 3/24

11:50 am-8:00 pm

2 stops43h 10m

Washington, D.C. Reagan-National

Tue 8/25

9:59 am-10:25 am

2 stops37h 26m

$1,264

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 3/24

11:50 am-8:00 pm

2 stops43h 10m

Washington, D.C. Reagan-National

Wed 8/26

6:59 pm-10:25 am

2 stops28h 26m

$1,270

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 3/2

11:50 am-8:05 pm

2 stops44h 15m

Washington, D.C. Reagan-National

Sun 3/22

6:41 pm-10:35 am

2 stops28h 54m

$1,298

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 3/24

11:50 am-8:00 pm

2 stops43h 10m

Washington, D.C. Reagan-National

Tue 3/31

6:41 pm-10:25 am

2 stops28h 44m

$1,342

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 6/14

11:35 am-9:59 pm

2 stops45h 24m

Washington, D.C. Reagan-National

Sun 6/28

6:59 pm-10:25 am

2 stops28h 26m

$1,565

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 3/15

11:50 am-8:05 pm

2 stops43h 15m

Washington, D.C. Reagan-National

Sun 3/22

6:41 pm-10:35 am

2 stops28h 54m

$1,573

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 6/14

7:25 pm-7:58 pm

3 stops35h 33m

Washington, D.C. Reagan-National

Sun 6/28

11:00 am-6:20 am

3 stops32h 20m

$1,655

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from Chiang Mai to Washington, D.C. Reagan-National Airport

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

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

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

Fastest flight time

41h 06m

Direct flights

None
The fastest flight from Chiang Mai to Washington, D.C. Reagan-National Airport takes 41h 06m
There are no direct flights from Chiang Mai to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Chiang Mai to Washington, D.C. Reagan-National Airport.
Search flight deals

  • How far is Chiang Mai to Washington, D.C. Reagan-National by plane?

    Chiang Mai and Washington, D.C. Reagan-National are 8440.1 mi apart from one another. A reasonable flight in good conditions will take 41h 06m.

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

    Prices for flights from Chiang Mai Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chiang Mai Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Chiang Mai to Washington, D.C. Reagan-National Airport?

    Price Alerts will notify you by email when the price for flights to Washington, D.C. Reagan-National Airport from Chiang Mai decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Chiang Mai to Washington, D.C. Reagan-National Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Colonial Beach
Tysons
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Glen Burnie

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Chiang Mai.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Chiang Mai with this policy.

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

Once you have performed a search for Chiang Mai to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Chiang Mai to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Washington, D.C. Reagan-National Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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