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Cheap flights from Washington, D.C. Dulles Intl Airport to Chiang Mai from $480

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. Dulles Intl Airport to Chiang Mai departing on 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
EVA Air Logo
1:15 am - 10:25 am
IAD
-
CNX
22h 10m
1 stop
EVA Air Logo
8:00 pm - 10:00 pm
CNX
-
IAD
37h 00m
2 stops
$1,057EVA Air
Mon, Sep 7 - Tue, Sep 15
EVA Air Logo
1:50 am - 10:25 am
IAD
-
CNX
21h 35m
1 stop
EVA Air Logo
7:45 pm - 8:55 pm
CNX
-
IAD
37h 10m
2 stops
$1,066EVA Air
Mon, Aug 31 - Tue, Dec 1
Multiple Airlines Logo
8:05 pm - 11:20 am
IAD
-
CNX
27h 15m
2 stops
Multiple Airlines Logo
7:45 pm - 3:55 pm
CNX
-
IAD
32h 10m
2 stops
$1,071Multiple Airlines
Mon, Jan 18 - Mon, Feb 1
EVA Air Logo
1:50 am - 7:10 pm
IAD
-
CNX
30h 20m
2 stops
EVA Air Logo
7:45 pm - 8:55 pm
CNX
-
IAD
37h 10m
2 stops
$1,077EVA Air
Mon, Aug 31 - Tue, Dec 1
Multiple Airlines Logo
9:00 pm - 11:15 am
IAD
-
CNX
27h 15m
2 stops
Multiple Airlines Logo
8:00 pm - 3:40 pm
CNX
-
IAD
30h 40m
2 stops
$1,079Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
9:00 pm - 11:15 am
IAD
-
CNX
51h 15m
2 stops
Multiple Airlines Logo
3:30 pm - 8:45 am
CNX
-
IAD
28h 15m
2 stops
$1,085Multiple Airlines
Thu, Sep 24 - Wed, Oct 14
Korean Air Logo
8:00 am - 10:55 pm
IAD
-
CNX
27h 55m
2 stops
Korean Air Logo
12:15 am - 9:50 am
CNX
-
IAD
21h 35m
1 stop
$1,125Korean Air
Sat, Oct 24 - Sun, Nov 1
Korean Air Logo
11:50 am - 10:55 pm
IAD
-
CNX
23h 05m
1 stop
Korean Air Logo
12:15 am - 9:50 am
CNX
-
IAD
21h 35m
1 stop
$1,254Korean Air
Sun, Nov 1 - Sun, Nov 15
Delta Logo
11:50 am - 10:55 pm
IAD
-
CNX
23h 05m
1 stop
Delta Logo
12:15 am - 9:50 am
CNX
-
IAD
21h 35m
1 stop
$1,266Delta
Sat, Jan 16 - Sun, Feb 14
Delta Logo
6:59 pm - 10:55 pm
IAD
-
CNX
39h 56m
2 stops
Delta Logo
12:15 am - 9:50 am
CNX
-
IAD
21h 35m
1 stop
$1,282Delta
Sun, Dec 27 - Sat, Feb 27

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Qatar Airways flights from Washington, D.C. Dulles Intl Airport to Chiang Mai

Our best Qatar Airways deals on Washington, D.C. Dulles Intl Airport to Chiang Mai flight tickets
Qatar Airways
Jan 17
IAD8:05 pmWashington, D.C. Dulles Intl
34h 55m
2 stops
CNX7:00 pmChiang Mai
Jan 31
CNX7:45 pmChiang Mai
32h 10m
2 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$1,122
Qatar Airways
Jan 17
IAD8:05 pmWashington, D.C. Dulles Intl
34h 55m
2 stops
CNX7:00 pmChiang Mai
Jan 31
CNX7:45 pmChiang Mai
32h 10m
2 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$1,160
Qatar Airways
Sep 2
IAD9:00 pmWashington, D.C. Dulles Intl
29h 45m
2 stops
CNX1:45 pmChiang Mai
Dec 2
CNX7:45 pmChiang Mai
48h 45m
2 stops
IAD8:30 amWashington, D.C. Dulles Intl
$1,167

EVA Air flights from Washington, D.C. Dulles Intl Airport to Chiang Mai

Our best EVA Air deals on Washington, D.C. Dulles Intl Airport to Chiang Mai flight tickets
EVA Air
Sep 7
IAD1:15 amWashington, D.C. Dulles Intl
22h 10m
1 stop
CNX10:25 amChiang Mai
Sep 15
CNX8:00 pmChiang Mai
37h 00m
2 stops
IAD10:00 pmWashington, D.C. Dulles Intl
$1,057
EVA Air
Aug 31
IAD1:50 amWashington, D.C. Dulles Intl
21h 35m
1 stop
CNX10:25 amChiang Mai
Dec 1
CNX7:45 pmChiang Mai
37h 10m
2 stops
IAD8:55 pmWashington, D.C. Dulles Intl
$1,066
EVA Air
Aug 31
IAD1:50 amWashington, D.C. Dulles Intl
30h 20m
2 stops
CNX7:10 pmChiang Mai
Dec 1
CNX7:45 pmChiang Mai
37h 10m
2 stops
IAD8:55 pmWashington, D.C. Dulles Intl
$1,077

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl 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 July 27, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 9/7

1:15 am-10:25 am

1 stop22h 10m

Chiang Mai

Tue 9/15

8:00 pm-10:00 pm

2 stops37h 00m

$1,057

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 8/31

1:50 am-10:25 am

1 stop21h 35m

Chiang Mai

Tue 12/1

7:45 pm-8:55 pm

2 stops37h 10m

$1,066

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 1/18

8:05 pm-11:20 am

2 stops27h 15m

Chiang Mai

Mon 2/1

7:45 pm-3:55 pm

2 stops32h 10m

$1,071

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 8/31

1:50 am-7:10 pm

2 stops30h 20m

Chiang Mai

Tue 12/1

7:45 pm-8:55 pm

2 stops37h 10m

$1,077

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 9/14

9:00 pm-11:15 am

2 stops27h 15m

Chiang Mai

Mon 9/21

8:00 pm-3:40 pm

2 stops30h 40m

$1,079

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Thu 9/24

9:00 pm-11:15 am

2 stops51h 15m

Chiang Mai

Wed 10/14

3:30 pm-8:45 am

2 stops28h 15m

$1,085

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sat 10/24

8:00 am-10:55 pm

2 stops27h 55m

Chiang Mai

Sun 11/1

12:15 am-9:50 am

1 stop21h 35m

$1,125
Quickest round-trip

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 11/1

11:50 am-10:55 pm

1 stop23h 05m

Chiang Mai

Sun 11/15

12:15 am-9:50 am

1 stop21h 35m

$1,254

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sat 1/16

11:50 am-10:55 pm

1 stop23h 05m

Chiang Mai

Sun 2/14

12:15 am-9:50 am

1 stop21h 35m

$1,266

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 12/27

6:59 pm-10:55 pm

2 stops39h 56m

Chiang Mai

Sat 2/27

12:15 am-9:50 am

1 stop21h 35m

$1,282

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl 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 month to fly to Chiang Mai?

If you don’t want to visit Chiang Mai in April, then you should wait until May to fly from Washington, D.C. Dulles Intl Airport, when ticket prices are also cheap, with an average price of $954.

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

You could potentially save up to 12% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Chiang Mai flight.

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

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

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

Fastest flight time

27h 15m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Chiang Mai takes 27h 15m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Chiang Mai. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Chiang Mai.
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Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Chiang Mai

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

    Chiang Mai is 8435.1 mi away from Washington, D.C. Dulles Intl. Typically, this will take 27h 15m by plane in normal conditions.

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

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

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Chiang Mai with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $673Free CancellationRating
8.4
1,221 reviews
Search Korean Air flights
DeltaPriceFrom $798Free CancellationRating
7.8
8,493 reviews
Search Delta flights
EVA AirPriceFrom $1,040Free CancellationRating
8.5
1,504 reviews
Search EVA Air 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?

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

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

momondo provides multiple filters to help you find the best flight to Chiang Mai from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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