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Cheap flights from Washington, D.C. Dulles Intl Airport to Chiang Mai from $467

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 1/23. 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. Dulles Intl Airport to Chiang Mai

Cheap round-trip flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
3:35 pm - 11:20 amIAD-CNX
32h 45m2 stops
Etihad Airways Logo
8:50 am - 9:45 amCNX-IAD
35h 55m1 stop
$915Etihad Airways
Find Deal
Fri, Mar 13 - Sat, Mar 28
Qatar Airways Logo
8:05 pm - 9:25 amIAD-CNX
49h 20m2 stops
Qatar Airways Logo
12:10 pm - 4:55 pmCNX-IAD
39h 45m2 stops
$1,027Qatar Airways
Find Deal
Sun, Mar 1 - Wed, Mar 11
Multiple Airlines Logo
8:05 pm - 1:20 pmIAD-CNX
29h 15m2 stops
Multiple Airlines Logo
7:45 pm - 4:55 pmCNX-IAD
56h 10m2 stops
$1,042Multiple Airlines
Find Deal
Sun, Feb 15 - Mon, Mar 23
Qatar Airways Logo
8:05 pm - 9:25 amIAD-CNX
49h 20m2 stops
Qatar Airways Logo
10:10 am - 4:55 pmCNX-IAD
41h 45m2 stops
$1,054Qatar Airways
Find Deal
Sun, Mar 1 - Wed, Mar 11
Qatar Airways Logo
8:05 pm - 9:25 amIAD-CNX
49h 20m2 stops
Qatar Airways Logo
7:45 pm - 9:20 amCNX-IAD
48h 35m2 stops
$1,057Qatar Airways
Find Deal
Sun, Feb 15 - Mon, Mar 23
Korean Air Logo
7:51 pm - 10:55 pmIAD-CNX
39h 04m2 stops
Korean Air Logo
12:15 am - 7:19 pmCNX-IAD
30h 04m2 stops
$1,064Korean Air
Find Deal
Sun, Mar 1 - Tue, Mar 10
Delta Logo
5:25 pm - 10:55 pmIAD-CNX
41h 30m2 stops
Delta Logo
12:15 am - 11:49 pmCNX-IAD
34h 34m2 stops
$1,083Delta
Find Deal
Sun, Feb 15 - Sun, Mar 22
Korean Air Logo
11:50 am - 10:55 pmIAD-CNX
23h 05m1 stop
Korean Air Logo
12:15 am - 7:19 pmCNX-IAD
30h 04m2 stops
$1,093Korean Air
Find Deal
Sun, Mar 1 - Tue, Mar 10
EVA Air Logo
6:27 pm - 10:35 amIAD-CNX
29h 08m2 stops
EVA Air Logo
11:35 am - 5:49 amCNX-IAD
29h 14m2 stops
$1,096EVA Air
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Mon, Mar 16 - Thu, Apr 16
Qatar Airways Logo
9:05 pm - 11:20 amIAD-CNX
27h 15m2 stops
Qatar Airways Logo
7:45 pm - 3:40 pmCNX-IAD
30h 55m2 stops
$1,099Qatar Airways
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Fri, Mar 13 - Sat, Mar 28

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

Our best Air China deals on Washington, D.C. Dulles Intl Airport to Chiang Mai flight tickets
Air China
Dec 5
IAD10:00 pmWashington, D.C. Dulles Intl
35h 50m
1 stop
CNX9:50 pmChiang Mai
Jan 22
CNX11:05 pmChiang Mai
31h 25m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$942
Find similar
Air China
Dec 5
IAD10:00 pmWashington, D.C. Dulles Intl
35h 50m
1 stop
CNX9:50 pmChiang Mai
Dec 25
CNX11:05 pmChiang Mai
31h 25m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,587
Find similar
Air China
Dec 5
IAD10:00 pmWashington, D.C. Dulles Intl
35h 50m
1 stop
CNX9:50 pmChiang Mai
Jan 19
CNX11:05 pmChiang Mai
31h 25m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,647
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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
Mar 1
IAD8:05 pmWashington, D.C. Dulles Intl
49h 20m
2 stops
CNX9:25 amChiang Mai
Mar 11
CNX12:10 pmChiang Mai
39h 45m
2 stops
IAD4:55 pmWashington, D.C. Dulles Intl
$1,027
Find similar
Qatar Airways
Mar 1
IAD8:05 pmWashington, D.C. Dulles Intl
49h 20m
2 stops
CNX9:25 amChiang Mai
Mar 11
CNX10:10 amChiang Mai
41h 45m
2 stops
IAD4:55 pmWashington, D.C. Dulles Intl
$1,054
Find similar
Qatar Airways
Feb 15
IAD8:05 pmWashington, D.C. Dulles Intl
49h 20m
2 stops
CNX9:25 amChiang Mai
Mar 23
CNX7:45 pmChiang Mai
48h 35m
2 stops
IAD9:20 amWashington, D.C. Dulles Intl
$1,057
Find similar

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 December 1, 2025.
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

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 3/13

3:35 pm-11:20 am

2 stops32h 45m

Chiang Mai

Sat 3/28

8:50 am-9:45 am

1 stop35h 55m

$915

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 3/1

8:05 pm-9:25 am

2 stops49h 20m

Chiang Mai

Wed 3/11

12:10 pm-4:55 pm

2 stops39h 45m

$1,027

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 2/15

8:05 pm-1:20 pm

2 stops29h 15m

Chiang Mai

Mon 3/23

7:45 pm-4:55 pm

2 stops56h 10m

$1,042

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 3/1

8:05 pm-9:25 am

2 stops49h 20m

Chiang Mai

Wed 3/11

10:10 am-4:55 pm

2 stops41h 45m

$1,054

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 2/15

8:05 pm-9:25 am

2 stops49h 20m

Chiang Mai

Mon 3/23

7:45 pm-9:20 am

2 stops48h 35m

$1,057

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 3/1

7:51 pm-10:55 pm

2 stops39h 04m

Chiang Mai

Tue 3/10

12:15 am-7:19 pm

2 stops30h 04m

$1,064

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 2/15

5:25 pm-10:55 pm

2 stops41h 30m

Chiang Mai

Sun 3/22

12:15 am-11:49 pm

2 stops34h 34m

$1,083

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 3/1

11:50 am-10:55 pm

1 stop23h 05m

Chiang Mai

Tue 3/10

12:15 am-7:19 pm

2 stops30h 04m

$1,093

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 3/16

6:27 pm-10:35 am

2 stops29h 08m

Chiang Mai

Thu 4/16

11:35 am-5:49 am

2 stops29h 14m

$1,096

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 3/13

9:05 pm-11:20 am

2 stops27h 15m

Chiang Mai

Sat 3/28

7:45 pm-3:40 pm

2 stops30h 55m

$1,099

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. 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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Chiang Mai?

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

The cheapest day to depart from Washington, D.C. Dulles Intl 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. Dulles Intl 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. Dulles Intl 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.

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

25h 20m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Chiang Mai takes 25h 20m
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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  • 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 23h 05m 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 $743Free CancellationRating
8.4
1,175 reviews
Search Korean Air flights
DeltaPriceFrom $798Free CancellationRating
7.9
8,011 reviews
Search Delta flights

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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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