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Cheap flights from Washington, D.C. Dulles Intl Airport to Chiang Mai from $517

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 10/28. 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

Multiple Airlines Logo
9:00 pm - 11:15 amIAD-CNX
27h 15m2 stops
Multiple Airlines Logo
10:10 am - 4:55 pmCNX-IAD
41h 45m2 stops
$982Multiple Airlines
Find Deal
Wed, Oct 1 - Fri, Oct 31
Qatar Airways Logo
11:00 am - 11:15 amIAD-CNX
37h 15m2 stops
Qatar Airways Logo
10:10 am - 4:55 pmCNX-IAD
41h 45m2 stops
$997Qatar Airways
Find Deal
Wed, Oct 1 - Fri, Oct 31
Multiple Airlines Logo
8:05 pm - 1:25 pmIAD-CNX
29h 20m2 stops
Multiple Airlines Logo
7:45 pm - 3:55 pmCNX-IAD
32h 10m2 stops
$1,029Multiple Airlines
Find Deal
Wed, Nov 5 - Tue, Nov 25
Delta Logo
7:05 am - 9:55 pmIAD-CNX
27h 50m2 stops
Delta Logo
12:15 am - 12:40 amCNX-IAD
36h 25m2 stops
$1,129Delta
Find Deal
Wed, Oct 15 - Sun, Nov 2
Etihad Airways Logo
9:10 pm - 9:25 amIAD-CNX
48h 15m2 stops
Etihad Airways Logo
12:10 pm - 3:50 pmCNX-IAD
63h 40m2 stops
$1,393Etihad Airways
Find Deal
Mon, Nov 10 - Sun, Nov 30
Delta Logo
5:59 pm - 10:55 pmIAD-CNX
40h 56m2 stops
Delta Logo
12:15 am - 12:54 amCNX-IAD
36h 39m2 stops
$1,424Delta
Find Deal
Sun, Nov 9 - Sat, Nov 15
Etihad Airways Logo
9:10 pm - 6:05 amIAD-CNX
20h 55m1 stop
Etihad Airways Logo
10:10 am - 3:50 pmCNX-IAD
41h 40m2 stops
$1,565Etihad Airways
Find Deal
Sun, Nov 9 - Sun, Nov 16
Korean Air Logo
11:50 am - 10:55 pmIAD-CNX
23h 05m1 stop
Korean Air Logo
12:15 am - 9:50 amCNX-IAD
21h 35m1 stop
$1,808Korean Air
Find Deal
Sun, Nov 9 - Sat, Nov 15
SWISS Logo
6:40 pm - 1:45 pmIAD-CNX
32h 05m3 stops
SWISS Logo
10:10 am - 2:25 pmCNX-IAD
40h 15m3 stops
$2,177SWISS
Find Deal
Wed, Oct 15 - Mon, Nov 3
Korean Air Logo
1:15 pm - 8:45 pmIAD-CNX
44h 30m1 stop
Korean Air Logo
12:15 am - 9:50 amCNX-IAD
21h 35m1 stop
$3,035Korean Air
Find Deal
Wed, Oct 15 - Sun, Nov 2

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

Our best Korean Air deals on Washington, D.C. Dulles Intl Airport to Chiang Mai flight tickets
Korean Air
Nov 9
IAD11:50 amWashington, D.C. Dulles Intl
23h 05m
1 stop
CNX10:55 pmChiang Mai
Nov 15
CNX12:15 amChiang Mai
21h 35m
1 stop
IAD9:50 amWashington, D.C. Dulles Intl
$1,808
Find similar
Korean Air
Oct 15
IAD1:15 pmWashington, D.C. Dulles Intl
44h 30m
1 stop
CNX8:45 pmChiang Mai
Nov 2
CNX12:15 amChiang Mai
21h 35m
1 stop
IAD9:50 amWashington, D.C. Dulles Intl
$3,035
Find similar

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Chiang Mai flight tickets
Delta
Oct 15
IAD7:05 amWashington, D.C. Dulles Intl
27h 50m
2 stops
CNX9:55 pmChiang Mai
Nov 2
CNX12:15 amChiang Mai
36h 25m
2 stops
IAD12:40 amWashington, D.C. Dulles Intl
$1,129
Find similar
Delta
Nov 9
IAD5:59 pmWashington, D.C. Dulles Intl
40h 56m
2 stops
CNX10:55 pmChiang Mai
Nov 15
CNX12:15 amChiang Mai
36h 39m
2 stops
IAD12:54 amWashington, D.C. Dulles Intl
$1,424
Find similar
Delta
Nov 9
IAD5:59 pmWashington, D.C. Dulles Intl
40h 56m
2 stops
CNX10:55 pmChiang Mai
Nov 15
CNX12:15 amChiang Mai
21h 35m
1 stop
IAD9:50 amWashington, D.C. Dulles Intl
$1,474
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 September 22, 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

Wed 10/1

9:00 pm-11:15 am

2 stops27h 15m

Chiang Mai

Fri 10/31

10:10 am-4:55 pm

2 stops41h 45m

$982

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 10/1

11:00 am-11:15 am

2 stops37h 15m

Chiang Mai

Fri 10/31

10:10 am-4:55 pm

2 stops41h 45m

$997

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 11/5

8:05 pm-1:25 pm

2 stops29h 20m

Chiang Mai

Tue 11/25

7:45 pm-3:55 pm

2 stops32h 10m

$1,029

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 10/15

7:05 am-9:55 pm

2 stops27h 50m

Chiang Mai

Sun 11/2

12:15 am-12:40 am

2 stops36h 25m

$1,129

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 11/10

9:10 pm-9:25 am

2 stops48h 15m

Chiang Mai

Sun 11/30

12:10 pm-3:50 pm

2 stops63h 40m

$1,393

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 11/9

5:59 pm-10:55 pm

2 stops40h 56m

Chiang Mai

Sat 11/15

12:15 am-12:54 am

2 stops36h 39m

$1,424

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 11/9

9:10 pm-6:05 am

1 stop20h 55m

Chiang Mai

Sun 11/16

10:10 am-3:50 pm

2 stops41h 40m

$1,565

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 11/9

11:50 am-10:55 pm

1 stop23h 05m

Chiang Mai

Sat 11/15

12:15 am-9:50 am

1 stop21h 35m

$1,808

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 10/15

6:40 pm-1:45 pm

3 stops32h 05m

Chiang Mai

Mon 11/3

10:10 am-2:25 pm

3 stops40h 15m

$2,177

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 10/15

1:15 pm-8:45 pm

1 stop44h 30m

Chiang Mai

Sun 11/2

12:15 am-9:50 am

1 stop21h 35m

$3,035

Flights are sorted by cheapest round-trip flights 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 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 3% 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

Direct flights

None
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 20h 55m 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
1,143 reviews
Search Korean Air flights
DeltaPriceFrom $798Free CancellationRating
7.9
7,971 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.

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