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Cheap flights from Chiang Mai to Washington, D.C. from $551

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 12/3. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:15 am - 10:56 pmCNX-DCA
34h 41m2 stops
Delta Logo
6:00 am - 10:55 pmDCA-CNX
28h 55m2 stops
$2,953Delta
Find Deal
mar., feb. 17 - dom., feb. 22
Delta Logo
12:15 am - 11:20 pmCNX-DCA
35h 05m2 stops
Delta Logo
6:05 am - 10:55 pmDCA-CNX
28h 50m2 stops
$2,958Delta
Find Deal
mar., feb. 17 - dom., feb. 22
Delta Logo
12:15 am - 11:59 amCNX-DCA
23h 44m2 stops
Delta Logo
5:15 pm - 10:55 pmDCA-CNX
41h 40m2 stops
$2,967Delta
Find Deal
mar., feb. 17 - dom., feb. 22
China Airlines Logo
11:25 am - 5:57 pmCNX-DCA
42h 32m2 stops
China Airlines Logo
8:00 am - 10:25 amDCA-CNX
38h 25m2 stops
$5,723China Airlines
Find Deal
jue., dic. 25 - dom., ene. 4

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 17
CNX12:15 amChiang Mai
34h 41m
2 stops
DCA10:56 pmWashington, D.C. Reagan-National
Feb 22
DCA6:00 amWashington, D.C. Reagan-National
28h 55m
2 stops
CNX10:55 pmChiang Mai
$2,953
Find similar
Delta
Feb 17
CNX12:15 amChiang Mai
35h 05m
2 stops
DCA11:20 pmWashington, D.C. Reagan-National
Feb 22
DCA6:05 amWashington, D.C. Reagan-National
28h 50m
2 stops
CNX10:55 pmChiang Mai
$2,958
Find similar
Delta
Feb 17
CNX12:15 amChiang Mai
23h 44m
2 stops
DCA11:59 amWashington, D.C. Reagan-National
Feb 22
DCA5:15 pmWashington, D.C. Reagan-National
41h 40m
2 stops
CNX10:55 pmChiang Mai
$2,967
Find similar

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 octubre 23, 2025.
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

mar. 2/17

12:15 am-10:56 pm

2 stops34h 41m

Washington, D.C. Reagan-National

dom. 2/22

6:00 am-10:55 pm

2 stops28h 55m

$2,953

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

mar. 2/17

12:15 am-11:20 pm

2 stops35h 05m

Washington, D.C. Reagan-National

dom. 2/22

6:05 am-10:55 pm

2 stops28h 50m

$2,958

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

mar. 2/17

12:15 am-11:59 am

2 stops23h 44m

Washington, D.C. Reagan-National

dom. 2/22

5:15 pm-10:55 pm

2 stops41h 40m

$2,967

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

jue. 12/25

11:25 am-5:57 pm

2 stops42h 32m

Washington, D.C. Reagan-National

dom. 1/4

8:00 am-10:25 am

2 stops38h 25m

$5,723

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

mié. 12/3

10:50 pm-8:00 pm

3 stops57h 10m

$551

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

vie. 1/30

11:25 am-8:00 pm

2 stops44h 35m

$561

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

jue. 12/4

7:05 am-8:00 pm

3 stops48h 55m

$562

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

mié. 12/3

8:50 pm-8:00 pm

3 stops59h 10m

$576

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

lun. 12/1

12:15 am-10:57 pm

2 stops34h 42m

$905

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

lun. 12/1

12:15 am-5:59 pm

2 stops29h 44m

$906

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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

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 airline that flies from Chiang Mai to Washington, D.C. Reagan-National?

Delta and Cathay Pacific are the most popular carriers operating from Chiang Mai to Washington, D.C. Reagan-National

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

Direct flights

None
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.
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  • 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 23h 44m.

  • 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.

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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Glen Burnie
Springfield
Linthicum Heights

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

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