Cheap flights from Washington, D.C. Dulles Intl Airport to Chiang Mai from $508

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 3/25. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

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
3:10 pm - 9:20 am
IAD
-
CNX
31h 10m
2 stops
Etihad Airways Logo
9:30 am - 9:45 am
CNX
-
IAD
35h 15m
1 stop
$931Etihad Airways
Fri, May 8 - Tue, May 26
Etihad Airways Logo
3:10 pm - 9:20 am
IAD
-
CNX
31h 10m
2 stops
Etihad Airways Logo
9:30 am - 9:45 am
CNX
-
IAD
35h 15m
1 stop
$937Etihad Airways
Fri, May 1 - Sat, May 9
Etihad Airways Logo
3:10 pm - 9:20 am
IAD
-
CNX
31h 10m
2 stops
Etihad Airways Logo
9:30 am - 9:45 am
CNX
-
IAD
35h 15m
1 stop
$940Etihad Airways
Fri, May 1 - Sat, May 16
Etihad Airways Logo
3:10 pm - 9:20 am
IAD
-
CNX
31h 10m
2 stops
Etihad Airways Logo
9:30 am - 9:45 am
CNX
-
IAD
35h 15m
1 stop
$943Etihad Airways
Fri, Apr 3 - Tue, Apr 21
Multiple Airlines Logo
7:11 pm - 4:20 pm
IAD
-
CNX
34h 09m
2 stops
Multiple Airlines Logo
5:20 pm - 5:50 am
CNX
-
IAD
47h 30m
2 stops
$991Multiple Airlines
Tue, Apr 21 - Sat, May 9
STARLUX Airlines Logo
5:38 pm - 4:20 pm
IAD
-
CNX
35h 42m
2 stops
STARLUX Airlines Logo
5:20 pm - 7:28 am
CNX
-
IAD
49h 08m
2 stops
$994STARLUX Airlines
Tue, Aug 25 - Tue, Sep 8
Multiple Airlines Logo
7:11 pm - 4:20 pm
IAD
-
CNX
34h 09m
2 stops
Multiple Airlines Logo
5:20 pm - 5:50 am
CNX
-
IAD
47h 30m
2 stops
$1,004Multiple Airlines
Tue, Apr 21 - Sat, May 9
Multiple Airlines Logo
7:11 pm - 4:20 pm
IAD
-
CNX
34h 09m
2 stops
Multiple Airlines Logo
5:20 pm - 5:50 am
CNX
-
IAD
47h 30m
2 stops
$1,005Multiple Airlines
Tue, Apr 21 - Sat, May 9
EVA Air Logo
1:50 am - 10:25 am
IAD
-
CNX
21h 35m
1 stop
EVA Air Logo
11:35 am - 10:00 pm
CNX
-
IAD
21h 25m
1 stop
$1,019EVA Air
Wed, Aug 26 - Mon, Sep 7
Multiple Airlines Logo
1:50 am - 10:25 am
IAD
-
CNX
21h 35m
1 stop
Multiple Airlines Logo
11:35 am - 7:28 am
CNX
-
IAD
30h 53m
2 stops
$1,023Multiple Airlines
Mon, Aug 24 - Mon, Sep 7

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

Our best Etihad Airways deals on Washington, D.C. Dulles Intl Airport to Chiang Mai flight tickets
Etihad Airways
May 8
IAD3:10 pmWashington, D.C. Dulles Intl
31h 10m
2 stops
CNX9:20 amChiang Mai
May 26
CNX9:30 amChiang Mai
35h 15m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$931
Etihad Airways
May 1
IAD3:10 pmWashington, D.C. Dulles Intl
31h 10m
2 stops
CNX9:20 amChiang Mai
May 9
CNX9:30 amChiang Mai
35h 15m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$937
Etihad Airways
May 1
IAD3:10 pmWashington, D.C. Dulles Intl
31h 10m
2 stops
CNX9:20 amChiang Mai
May 16
CNX9:30 amChiang Mai
35h 15m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$940

STARLUX Airlines flights from Washington, D.C. Dulles Intl Airport to Chiang Mai

Our best STARLUX Airlines deals on Washington, D.C. Dulles Intl Airport to Chiang Mai flight tickets
STARLUX Airlines
Aug 25
IAD5:38 pmWashington, D.C. Dulles Intl
35h 42m
2 stops
CNX4:20 pmChiang Mai
Sep 8
CNX5:20 pmChiang Mai
49h 08m
2 stops
IAD7:28 amWashington, D.C. Dulles Intl
$994
STARLUX Airlines
Aug 27
IAD5:38 pmWashington, D.C. Dulles Intl
35h 42m
2 stops
CNX4:20 pmChiang Mai
Sep 8
CNX5:20 pmChiang Mai
49h 08m
2 stops
IAD7:28 amWashington, D.C. Dulles Intl
$1,044
STARLUX Airlines
Aug 9
IAD6:14 pmWashington, D.C. Dulles Intl
35h 06m
2 stops
CNX4:20 pmChiang Mai
Sep 3
CNX5:20 pmChiang Mai
49h 08m
2 stops
IAD7:28 amWashington, D.C. Dulles Intl
$1,075

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 February 28, 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

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 5/8

3:10 pm-9:20 am

2 stops31h 10m

Chiang Mai

Tue 5/26

9:30 am-9:45 am

1 stop35h 15m

$931

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 5/1

3:10 pm-9:20 am

2 stops31h 10m

Chiang Mai

Sat 5/9

9:30 am-9:45 am

1 stop35h 15m

$937

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 5/1

3:10 pm-9:20 am

2 stops31h 10m

Chiang Mai

Sat 5/16

9:30 am-9:45 am

1 stop35h 15m

$940

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 4/3

3:10 pm-9:20 am

2 stops31h 10m

Chiang Mai

Tue 4/21

9:30 am-9:45 am

1 stop35h 15m

$943

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 4/21

7:11 pm-4:20 pm

2 stops34h 09m

Chiang Mai

Sat 5/9

5:20 pm-5:50 am

2 stops47h 30m

$991

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 8/25

5:38 pm-4:20 pm

2 stops35h 42m

Chiang Mai

Tue 9/8

5:20 pm-7:28 am

2 stops49h 08m

$994

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 4/21

7:11 pm-4:20 pm

2 stops34h 09m

Chiang Mai

Sat 5/9

5:20 pm-5:50 am

2 stops47h 30m

$1,004

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Tue 4/21

7:11 pm-4:20 pm

2 stops34h 09m

Chiang Mai

Sat 5/9

5:20 pm-5:50 am

2 stops47h 30m

$1,005

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 8/26

1:50 am-10:25 am

1 stop21h 35m

Chiang Mai

Mon 9/7

11:35 am-10:00 pm

1 stop21h 25m

$1,019

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 8/24

1:50 am-10:25 am

1 stop21h 35m

Chiang Mai

Mon 9/7

11:35 am-7:28 am

2 stops30h 53m

$1,023

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

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

You could potentially save up to 1% 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

29h 11m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Chiang Mai takes 29h 11m
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.
  • 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 29h 11m 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
1,195 reviews
Search Korean Air flights
DeltaPriceFrom $798Free CancellationRating
7.9
8,244 reviews
Search Delta 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.

An easier way to manage your Chiang Mai 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 3/30
Mon 4/6

Find better results for your trip to Thailand