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Reagan-National

$632+ Cheap flights from Chiang Mai (CNX) to Reagan-National (DCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — DCA
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap flight deals from Chiang Mai to Reagan-National

Cheapest flights from Chiang Mai to Reagan-National
Explore the most affordable flight options available from Chiang Mai to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This Trip.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:35 am
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Sun 5/249:59 am
DCA
-
CNX
2 stops37h 26m
Multiple Airlines
Deal found 2/5$1,026
This BusinessClass deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:35 am
CNX
-
DCA
2 stops43h 31m
Multiple Airlines
Sat 6/136:59 pm
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Deal found 2/4$1,044
This oojo deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1911:50 am
CNX
-
DCA
2 stops43h 10m
EVA Air
Thu 4/26:41 pm
DCA
-
CNX
2 stops28h 44m
EVA Air
Deal found 2/1$1,062
This oojo deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:35 am
CNX
-
DCA
2 stops43h 31m
EVA Air
Sat 6/136:59 pm
DCA
-
CNX
2 stops28h 26m
EVA Air
Deal found 2/2$1,092
This Trip.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:35 am
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Thu 5/219:59 am
DCA
-
CNX
2 stops37h 26m
Multiple Airlines
Deal found 2/5$1,096
This BusinessClass deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/911:35 am
CNX
-
DCA
2 stops43h 27m
Multiple Airlines
Sat 6/136:59 pm
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Deal found 2/4$1,115
This Gurufare deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/711:35 am
CNX
-
DCA
2 stops43h 31m
Multiple Airlines
Sat 6/136:59 pm
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Deal found 2/4$1,128
This Gurufare deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:35 am
CNX
-
DCA
2 stops43h 31m
Multiple Airlines
Sun 6/146:59 pm
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Deal found 2/4$1,158
This BusinessClass deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:35 am
CNX
-
DCA
2 stops41h 06m
Multiple Airlines
Mon 5/256:59 pm
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Deal found 2/4$1,184
This BusinessClass deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/911:35 am
CNX
-
DCA
2 stops43h 27m
Multiple Airlines
Sun 6/146:59 pm
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Deal found 2/4$1,215

Find flight deals from Chiang Mai to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Reagan-National (DCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,026
(Trip.com)

One-way from

$632
(China Airlines)
Provider with most accurate pricing for Chiang Mai-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chiang Mai-Washington, D.C. (WAS) flights.
Search Deals
From Chiang Mai to Washington, D.C. Reagan-National
Search Deals
One-way flight from Chiang Mai to Washington, D.C. Reagan-National
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Chiang Mai to Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Chiang Mai

Fly to

Reagan-National

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 4/21

11:35 am-8:00 pm

2 stops43h 25m

Washington, D.C. Reagan-National

Wed 5/27

9:59 am-10:25 am

2 stops37h 26m

$1,026

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 4/21

11:35 am-8:00 pm

2 stops43h 25m

Washington, D.C. Reagan-National

Sun 5/24

9:59 am-10:25 am

2 stops37h 26m

$1,026

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 6/8

11:35 am-8:06 pm

2 stops43h 31m

Washington, D.C. Reagan-National

Sat 6/13

6:59 pm-10:25 am

2 stops28h 26m

$1,044

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 3/19

11:50 am-8:00 pm

2 stops43h 10m

Washington, D.C. Reagan-National

Thu 4/2

6:41 pm-10:25 am

2 stops28h 44m

$1,062

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 4/22

11:35 am-8:00 pm

2 stops43h 25m

Washington, D.C. Reagan-National

Thu 5/21

9:59 am-10:25 am

2 stops37h 26m

$1,096

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 6/9

11:35 am-8:02 pm

2 stops43h 27m

Washington, D.C. Reagan-National

Sat 6/13

6:59 pm-10:25 am

2 stops28h 26m

$1,115

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 6/7

11:35 am-8:06 pm

2 stops43h 31m

Washington, D.C. Reagan-National

Sat 6/13

6:59 pm-10:25 am

2 stops28h 26m

$1,128

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 6/8

11:35 am-8:06 pm

2 stops43h 31m

Washington, D.C. Reagan-National

Sun 6/14

6:59 pm-10:25 am

2 stops28h 26m

$1,158

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 5/11

11:20 am-8:00 pm

2 stops43h 40m

$632

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 5/18

11:20 am-9:59 pm

2 stops45h 39m

$687

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 15 results
1
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Best time to book a flight from Chiang Mai to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Chiang Mai with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Chiang Mai to Washington, D.C. Reagan-National?

    Located just 1.9 mi from the city center, Chiang Mai is the airport most travelers will use when flying to Washington, D.C. Reagan-National from Chiang Mai. Booking flights from Chiang Mai (CNX) to Washington, D.C. Reagan-National should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Reagan-National from 0 different airlines.

  • How long is the flight from Chiang Mai to Washington, D.C. Reagan-National Airport?

    There are many flights that can get you from Chiang Mai to Washington, D.C. Reagan-National Airport in 43h 10m. Fly via EVA Air to get the fastest option. There are 8441 mi between Chiang Mai and Washington, D.C. Reagan-National Airport.

  • Can I find deals for flights from Chiang Mai to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Chiang Mai to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chiang Mai to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Reagan-National.

  • Can I find deals for business class flights from Chiang Mai to Reagan-National?

    Yes. Cheapflights offers flight deals from Chiang Mai to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

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Alternative routes for Chiang Mai to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
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