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Cheap flights from Washington, D.C. to Chiang Mai from $464

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. to Chiang Mai 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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Find the cheapest flights from Washington, D.C. to Chiang Mai

Cheap round-trip flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
2:35 pm - 11:20 am
IAD
-
CNX
32h 45m
2 stops
Etihad Airways Logo
8:50 am - 10:05 am
CNX
-
IAD
36h 15m
1 stop
$913Etihad Airways
Fri, Mar 6 - Tue, Mar 24
Multiple Airlines Logo
12:15 pm - 8:45 am
IAD
-
CNX
33h 30m
2 stops
Multiple Airlines Logo
10:10 am - 10:05 am
CNX
-
IAD
34h 55m
2 stops
$924Multiple Airlines
Tue, Apr 28 - Wed, May 20
Air China Logo
11:00 pm - 9:50 pm
IAD
-
CNX
35h 50m
1 stop
Air China Logo
11:05 pm - 7:30 pm
CNX
-
IAD
31h 25m
1 stop
$929Air China
Tue, Mar 31 - Thu, Apr 23
Etihad Airways Logo
3:35 pm - 9:25 am
IAD
-
CNX
30h 50m
2 stops
Etihad Airways Logo
8:50 am - 9:45 am
CNX
-
IAD
35h 55m
1 stop
$937Etihad Airways
Fri, Mar 13 - Sat, Mar 28
STARLUX Airlines Logo
7:11 pm - 4:20 pm
IAD
-
CNX
34h 09m
2 stops
STARLUX Airlines Logo
5:20 pm - 5:50 am
CNX
-
IAD
47h 30m
2 stops
$951STARLUX Airlines
Tue, Mar 31 - Thu, Apr 23
Air China Logo
11:00 pm - 9:50 pm
IAD
-
CNX
35h 50m
1 stop
Air China Logo
11:05 pm - 7:30 pm
CNX
-
IAD
31h 25m
1 stop
$970Air China
Tue, Apr 7 - Thu, Apr 23
STARLUX Airlines Logo
7:11 pm - 4:20 pm
IAD
-
CNX
34h 09m
2 stops
STARLUX Airlines Logo
5:20 pm - 5:50 am
CNX
-
IAD
47h 30m
2 stops
$974STARLUX Airlines
Tue, Apr 7 - Tue, Apr 21
China Airlines Logo
8:00 am - 10:25 am
DCA
-
CNX
38h 25m
2 stops
China Airlines Logo
11:25 am - 9:59 pm
CNX
-
DCA
45h 34m
2 stops
$1,061China Airlines
Sun, Feb 22 - Tue, Mar 10
China Airlines Logo
5:00 pm - 10:20 am
DCA
-
CNX
30h 20m
2 stops
China Airlines Logo
11:20 am - 5:59 pm
CNX
-
DCA
41h 39m
2 stops
$1,072China Airlines
Tue, Apr 14 - Tue, Apr 21
Delta Logo
7:06 pm - 10:55 pm
BWI
-
CNX
39h 49m
2 stops
Delta Logo
12:15 am - 12:53 am
CNX
-
BWI
35h 38m
2 stops
$1,195Delta
Mon, Feb 23 - Tue, Mar 10

Etihad Airways flights from Washington, D.C. to Chiang Mai

Our best Etihad Airways deals on Washington, D.C. to Chiang Mai flight tickets
Etihad Airways
Apr 9
IAD3:35 pmWashington, D.C. Dulles Intl
54h 45m
2 stops
CNX9:20 amChiang Mai
Apr 25
CNX9:30 amChiang Mai
35h 15m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$884
Etihad Airways
Mar 6
IAD2:35 pmWashington, D.C. Dulles Intl
32h 45m
2 stops
CNX11:20 amChiang Mai
Mar 24
CNX8:50 amChiang Mai
36h 15m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
$913
Etihad Airways
Apr 21
IAD3:35 pmWashington, D.C. Dulles Intl
27h 50m
1 stop
CNX6:25 amChiang Mai
May 9
CNX8:00 pmChiang Mai
48h 45m
2 stops
IAD9:45 amWashington, D.C. Dulles Intl
$997

Delta flights from Washington, D.C. to Chiang Mai

Our best Delta deals on Washington, D.C. to Chiang Mai flight tickets
Delta
Feb 23
IAD12:38 pmWashington, D.C. Dulles Intl
46h 17m
2 stops
CNX10:55 pmChiang Mai
Mar 10
CNX12:15 amChiang Mai
35h 16m
2 stops
IAD12:31 amWashington, D.C. Dulles Intl
$1,036
Delta
Jan 21
DCA6:59 amWashington, D.C. Reagan-National
27h 56m
2 stops
CNX10:55 pmChiang Mai
Feb 3
CNX12:15 amChiang Mai
27h 52m
2 stops
DCA4:07 pmWashington, D.C. Reagan-National
$1,080
Delta
Feb 5
IAD6:00 amWashington, D.C. Dulles Intl
28h 55m
2 stops
CNX10:55 pmChiang Mai
Feb 9
CNX12:15 amChiang Mai
34h 55m
2 stops
IAD11:10 pmWashington, D.C. Dulles Intl
$1,130

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 January 13, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 3/6

2:35 pm-11:20 am

2 stops32h 45m

Chiang Mai

Tue 3/24

8:50 am-10:05 am

1 stop36h 15m

$913

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 4/28

12:15 pm-8:45 am

2 stops33h 30m

Chiang Mai

Wed 5/20

10:10 am-10:05 am

2 stops34h 55m

$924

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 3/31

11:00 pm-9:50 pm

1 stop35h 50m

Chiang Mai

Thu 4/23

11:05 pm-7:30 pm

1 stop31h 25m

$929

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 3/13

3:35 pm-9:25 am

2 stops30h 50m

Chiang Mai

Sat 3/28

8:50 am-9:45 am

1 stop35h 55m

$937

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 3/31

7:11 pm-4:20 pm

2 stops34h 09m

Chiang Mai

Thu 4/23

5:20 pm-5:50 am

2 stops47h 30m

$951

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 4/7

11:00 pm-9:50 pm

1 stop35h 50m

Chiang Mai

Thu 4/23

11:05 pm-7:30 pm

1 stop31h 25m

$970

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 4/7

7:11 pm-4:20 pm

2 stops34h 09m

Chiang Mai

Tue 4/21

5:20 pm-5:50 am

2 stops47h 30m

$974

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 2/22

8:00 am-10:25 am

2 stops38h 25m

Chiang Mai

Tue 3/10

11:25 am-9:59 pm

2 stops45h 34m

$1,061

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 4/14

5:00 pm-10:20 am

2 stops30h 20m

Chiang Mai

Tue 4/21

11:20 am-5:59 pm

2 stops41h 39m

$1,072

BaltimoreChiang Mai

BWI - CNX

BWICNX

Baltimore/Washington

Mon 2/23

7:06 pm-10:55 pm

2 stops39h 49m

Chiang Mai

Tue 3/10

12:15 am-12:53 am

2 stops35h 38m

$1,195

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. 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 month to fly to Chiang Mai?

If you don’t want to visit Chiang Mai in January, then you should wait until March to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $1,184.

Can stopping save me money on Washington, D.C. to Chiang Mai flights?

You could potentially save up to 8% on your flight if you consider stops on a Washington, D.C. to Chiang Mai flight.

When to book flights from Washington, D.C. to Chiang Mai

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Chiang Mai (WAS to CNX) flight deals and tips

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

Fastest flight time

25h 15m

Direct flights

None
The fastest flight from Washington, D.C. to Chiang Mai takes 25h 15m
There are no direct flights from Washington, D.C. to Chiang Mai. There are no popular flight routes from Washington, D.C. to Chiang Mai.
Search flight deals

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

    Chiang Mai is 8436.4 mi away from Washington, D.C.. Typically, this will take 25h 15m by plane in normal conditions.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Chiang Mai Airport.

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

    The necessary travel and health documents for your Chiang Mai 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.

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

Best airlines flying from Washington, D.C. to Chiang Mai

Compare and see reviews for airlines that fly from Washington, D.C. to Chiang Mai with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $743Free CancellationRating
8.4
1,187 reviews
Search Korean Air flights
DeltaPriceFrom $798Free CancellationRating
7.9
8,040 reviews
Search Delta flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Chiang Mai. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Washington, D.C. to Chiang Mai flights to just show those with flexible booking policies.

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?

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

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