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Cheap flights from Chiang Mai to Washington, D.C. Reagan-National Airport from ฿19,297

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — DCA
31 Dec — 7 Jan1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Chiang Mai to Reagan-National

Enter your travel dates to find the best prices.

One-way flights from Chiang Mai to Reagan-National
Search for one-way flight options from Chiang Mai to Reagan-National. Find affordable one-way fares based on user searches. Data last updated 1 December 2025.

Fri 30/111:25CNX - DCA
2 stops44h 35mMultiple Airlines
Deal found 29/11฿19,297
Tue 3/316:55CNX - DCA
2 stops37h 04mMultiple Airlines
Deal found 29/11฿22,978
Fri 30/111:25CNX - DCA
2 stops42h 31mChina Airlines
Deal found 30/11฿23,298
Sun 12/411:20CNX - DCA
2 stops45h 36mMultiple Airlines
Deal found 1/12฿24,002
Wed 18/221:30CNX - DCA
3 stops58h 35mMultiple Airlines
Deal found 1/12฿26,786
Thu 29/100:15CNX - DCA
2 stops27h 52mเดลต้า
Deal found 29/11฿26,914

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 1 December 2025.
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

Fri 30/1

11:25-20:00

2 stops44h 35m

฿19,297

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 3/3

16:55-17:59

2 stops37h 04m

฿22,978

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Fri 30/1

11:25-17:56

2 stops42h 31m

฿23,298

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 12/4

11:20-21:56

2 stops45h 36m

฿24,002

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 18/2

21:30-20:05

3 stops58h 35m

฿26,786

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 29/1

00:15-16:07

2 stops27h 52m

฿26,914

Flights are sorted by cheapest return flights first.

Deals found on 29/11

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.

  • 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.

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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.

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