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Cheap flights from Chiang Mai to Washington, D.C. Reagan-National Airport from ฿19,907

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — DCA
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to Reagan-National

Enter your travel dates to find the best prices.

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 28 January 2026.

Tue 14/411:35
CNX
-
DCA
2 stops41h 06m
EVA Air
Thu 30/418:59
DCA
-
CNX
2 stops28h 26m
EVA Air
Deal found 28/1฿33,819
Tue 24/211:50
CNX
-
DCA
2 stops42h 09m
EVA Air
Tue 3/309:59
DCA
-
CNX
2 stops36h 36m
EVA Air
Deal found 27/1฿35,403

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 28 January 2026.

Round-trip from

฿33,819

One-way from

฿19,907
EVA Air
  • EVA Air
  • 14/4-30/4
  • 4 total stops
  • 69h 32m total
  • Chiang Mai to Washington, D.C.
Search Deals
16/3
  • 16/3
  • 3 total stops
  • 37h 19m total
  • Chiang Mai to Washington, D.C.
Search Deals

Cheapflights Fare Finder

 
Customise 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 17,341 searches. Data last updated 28 January 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 14/4

11:35-17:41

2 stops41h 06m

Washington, D.C. Reagan-National

Thu 30/4

18:59-10:25

2 stops28h 26m

฿33,819

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 24/2

11:50-17:59

2 stops42h 09m

Washington, D.C. Reagan-National

Tue 3/3

09:59-10:35

2 stops36h 36m

฿35,403

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Fri 15/5

11:20-20:06

2 stops43h 46m

฿20,403

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 17/3

11:25-16:59

3 stops40h 34m

฿20,993

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 2/2

00:45-08:55

2 stops44h 10m

฿21,925

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 15/4

19:25-19:53

3 stops35h 28m

฿22,546

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 5/2

10:35-20:00

3 stops45h 25m

฿22,981

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Fri 6/2

10:35-20:00

3 stops45h 25m

฿23,198

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 18/3

18:25-20:00

3 stops36h 35m

฿23,229

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 2/2

10:35-20:00

3 stops45h 25m

฿23,416

Flights are sorted by cheapest return flights first.

Deals found on 27/1

Showing 1-10 of 12 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 return 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?

    Most people fly from Chiang Mai (CNX) if they book a flight from Chiang Mai to Washington, D.C. Reagan-National. On average, Chiang Mai has 0 outbound flights to Washington, D.C. Reagan-National per day from 0 airlines. Chiang Mai is conveniently located just 3.1 km from Chiang Mai’s city centre.

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

    For as low as ฿33,819, EVA Air can have you in Washington, D.C. Reagan-National Airport from Chiang Mai in 41h 06m. The distance between Chiang Mai and Washington, D.C. Reagan-National Airport is about 13584 km.

  • 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 holiday 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

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Alternative routes for Chiang Mai to Reagan-National

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Can Cheapflights find flights from Chiang Mai to Reagan-National with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Chiang Mai to Reagan-National, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Chiang Mai to Reagan-National become cheaper?

Not ready to book yet? You can track prices for flights from Chiang Mai to Reagan-National on Cheapflights with our Price Alert feature and get notified when better prices are available.

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