Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Chiang Mai to Washington, D.C. from $774

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chiang Mai to Washington, D.C. departing on 11/14. 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

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.
Search flight deals

Find the cheapest flights from Chiang Mai to Washington, D.C. (CNX-IAD)

Cheap round-trip flights

China Airlines Logo
11:20 am - 7:33 amCNX-IAD
31h 13m2 stops
China Airlines Logo
6:25 am - 10:20 amIAD-CNX
40h 55m2 stops
$1,202China Airlines
Find Deal
Sun, Sep 28 - Sun, Oct 5
Delta Logo
11:15 pm - 11:26 pmCNX-IAD
35h 11m2 stops
Delta Logo
7:00 am - 11:05 pmIAD-CNX
28h 05m2 stops
$1,224Delta
Find Deal
Mon, Sep 1 - Sun, Dec 7
Air China Logo
11:05 pm - 6:30 pmCNX-IAD
31h 25m1 stop
Air China Logo
10:00 pm - 9:50 pmIAD-CNX
35h 50m1 stop
$1,227Air China
Find Deal
Thu, Dec 18 - Fri, Jan 2
Korean Air Logo
11:15 pm - 10:55 amCNX-IAD
22h 40m1 stop
Korean Air Logo
11:50 am - 11:05 pmIAD-CNX
23h 15m1 stop
$1,278Korean Air
Find Deal
Wed, Sep 3 - Thu, Dec 4
Air China Logo
11:05 pm - 7:30 pmCNX-IAD
31h 25m1 stop
Air China Logo
10:00 pm - 9:50 pmIAD-CNX
35h 50m1 stop
$1,281Air China
Find Deal
Thu, Sep 4 - Tue, Dec 2
Korean Air Logo
11:15 pm - 10:55 amCNX-IAD
22h 40m1 stop
Korean Air Logo
11:50 am - 11:05 pmIAD-CNX
23h 15m1 stop
$1,284Korean Air
Find Deal
Wed, Sep 3 - Tue, Dec 2
Logo
4:30 pm - 4:10 pmCNX-IAD
34h 40m3 stops
Logo
12:15 pm - 9:20 amIAD-CNX
34h 05m2 stops
$1,367
Find Deal
Sun, Sep 28 - Sun, Oct 5
Logo
12:45 am - 12:23 amCNX-IAD
34h 38m2 stops
Logo
6:25 am - 11:40 pmIAD-CNX
30h 15m2 stops
$1,495
Find Deal
Sat, Sep 27 - Sun, Oct 5
Emirates Logo
8:00 pm - 8:40 amCNX-IAD
47h 40m2 stops
Emirates Logo
10:30 am - 9:25 amIAD-CNX
58h 55m2 stops
$1,591Emirates
Find Deal
Sat, Sep 6 - Wed, Dec 3
Emirates Logo
8:00 pm - 8:40 amCNX-IAD
47h 40m2 stops
Emirates Logo
10:30 am - 11:20 amIAD-CNX
60h 50m2 stops
$1,609Emirates
Find Deal
Thu, Sep 4 - Wed, Dec 3

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

Our best Air China deals on Chiang Mai to Washington, D.C. Dulles Intl Airport flight tickets
Air China
Dec 18
CNX11:05 pmChiang Mai
31h 25m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
Jan 2
IAD10:00 pmWashington, D.C. Dulles Intl
35h 50m
1 stop
CNX9:50 pmChiang Mai
$1,227
Find similar
Air China
Sep 4
CNX11:05 pmChiang Mai
31h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
Dec 2
IAD10:00 pmWashington, D.C. Dulles Intl
35h 50m
1 stop
CNX9:50 pmChiang Mai
$1,281
Find similar
Air China
Sep 1
CNX11:05 pmChiang Mai
31h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
Dec 5
IAD10:00 pmWashington, D.C. Dulles Intl
35h 50m
1 stop
CNX9:50 pmChiang Mai
$1,387
Find similar

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

Our best Delta deals on Chiang Mai to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Sep 1
CNX11:15 pmChiang Mai
35h 11m
2 stops
IAD11:26 pmWashington, D.C. Dulles Intl
Dec 7
IAD7:00 amWashington, D.C. Dulles Intl
28h 05m
2 stops
CNX11:05 pmChiang Mai
$1,224
Find similar
Delta
Sep 6
CNX11:15 pmChiang Mai
35h 25m
2 stops
IAD11:40 pmWashington, D.C. Dulles Intl
Dec 2
IAD7:00 amWashington, D.C. Dulles Intl
28h 05m
2 stops
CNX11:05 pmChiang Mai
$1,317
Find similar
Delta
Dec 17
CNX12:15 amChiang Mai
35h 00m
2 stops
IAD11:15 pmWashington, D.C. Dulles Intl
Jan 2
IAD7:00 amWashington, D.C. Dulles Intl
28h 05m
2 stops
CNX11:05 pmChiang Mai
$1,333
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chiang Mai to Washington, D.C. Dulles Intl Airport 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 August 16, 2025.
Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sun 9/28

11:20 am-7:33 am

2 stops31h 13m

Washington, D.C. Dulles Intl

Sun 10/5

6:25 am-10:20 am

2 stops40h 55m

$1,202

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 9/1

11:15 pm-11:26 pm

2 stops35h 11m

Washington, D.C. Dulles Intl

Sun 12/7

7:00 am-11:05 pm

2 stops28h 05m

$1,224

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 12/18

11:05 pm-6:30 pm

1 stop31h 25m

Washington, D.C. Dulles Intl

Fri 1/2

10:00 pm-9:50 pm

1 stop35h 50m

$1,227

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 9/3

11:15 pm-10:55 am

1 stop22h 40m

Washington, D.C. Dulles Intl

Thu 12/4

11:50 am-11:05 pm

1 stop23h 15m

$1,278

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 9/4

11:05 pm-7:30 pm

1 stop31h 25m

Washington, D.C. Dulles Intl

Tue 12/2

10:00 pm-9:50 pm

1 stop35h 50m

$1,281

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 9/3

11:15 pm-10:55 am

1 stop22h 40m

Washington, D.C. Dulles Intl

Tue 12/2

11:50 am-11:05 pm

1 stop23h 15m

$1,284

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sun 9/28

4:30 pm-4:10 pm

3 stops34h 40m

Washington, D.C. Dulles Intl

Sun 10/5

12:15 pm-9:20 am

2 stops34h 05m

$1,367

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 9/27

12:45 am-12:23 am

2 stops34h 38m

Washington, D.C. Dulles Intl

Sun 10/5

6:25 am-11:40 pm

2 stops30h 15m

$1,495

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 9/6

8:00 pm-8:40 am

2 stops47h 40m

Washington, D.C. Dulles Intl

Wed 12/3

10:30 am-9:25 am

2 stops58h 55m

$1,591

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 9/4

8:00 pm-8:40 am

2 stops47h 40m

Washington, D.C. Dulles Intl

Wed 12/3

10:30 am-11:20 am

2 stops60h 50m

$1,609

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Chiang Mai to Washington, D.C. Dulles Intl Airport

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 Washington, D.C. Dulles Intl Airport?

Our data shows that Monday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $1,108. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Chiang Mai to Washington, D.C. Dulles Intl Airport for around $1,302.

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

You could potentially save up to 2% on your flight if you consider stops on a Chiang Mai to Washington, D.C. Dulles Intl Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Chiang Mai to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chiang Mai to Washington, D.C. Dulles Intl Airport (CNX to IAD) flight deals and tips

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

Best Price Found

$774

Fastest flight time

21h 10m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from Chiang Mai in the past 72 hours is $774. The best round-trip flight deal from Chiang Mai to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $1,202.
The fastest flight from Chiang Mai to Washington, D.C. Dulles Intl Airport takes 21h 10m
There are no direct flights from Chiang Mai to Washington, D.C. Dulles Intl Airport. Popular non-direct route for this connection is Chiang Mai Airport - Washington, D.C. Dulles Intl Airport.
Search flight deals

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

    The straight-line distance from Chiang Mai to Washington, D.C. Dulles Intl is 8435.1 mi. 21h 10m is a normal flight duration for this route.

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

    Prices for flights from Chiang Mai Airport to Washington, D.C. Dulles Intl Airport were last updated today.

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

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Winchester
Woodbridge
Tysons
Laurel
Silver Spring
Waldorf
Fredericksburg
Colonial Beach
Manassas
Harpers Ferry
Rockville
Towson
Gaithersburg
Fairfax
Reston
Glen Burnie

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chiang Mai to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Washington, D.C. from Chiang Mai which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Chiang Mai and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chiang Mai to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Chiang Mai. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. Dulles Intl Airport 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 8/21
Thu 8/28
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.