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Cheap flights from Chiang Mai to Washington, D.C. Reagan-National Airport from ฿25,970

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — DCA
11 Jul — 18 Jul1
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 11 June 2026.

Tue 29/1211:50
CNX
-
DCA
2 stops44h 10m
Multiple Airlines
Thu 14/109:30
DCA
-
CNX
2 stops61h 05m
Multiple Airlines
Deal found 9/6฿46,871
Sun 27/1200:15
CNX
-
DCA
2 stops35h 14m
เดลต้า
Fri 15/115:10
DCA
-
CNX
2 stops43h 45m
เดลต้า
Deal found 9/6฿47,858
Tue 29/1211:50
CNX
-
DCA
2 stops44h 10m
Multiple Airlines
Wed 13/109:30
DCA
-
CNX
2 stops37h 05m
Multiple Airlines
Deal found 9/6฿47,924
Tue 29/1200:15
CNX
-
DCA
2 stops33h 14m
เดลต้า
Wed 13/117:00
DCA
-
CNX
2 stops41h 55m
เดลต้า
Deal found 9/6฿51,380
Wed 30/1211:50
CNX
-
DCA
2 stops44h 10m
Multiple Airlines
Tue 12/109:30
DCA
-
CNX
2 stops37h 05m
Multiple Airlines
Deal found 9/6฿52,335
Wed 30/1211:50
CNX
-
DCA
2 stops44h 10m
Multiple Airlines
Thu 14/118:59
DCA
-
CNX
2 stops51h 36m
Multiple Airlines
Deal found 9/6฿53,947
Wed 30/1200:15
CNX
-
DCA
2 stops27h 04m
เดลต้า
Thu 14/120:15
DCA
-
CNX
2 stops38h 40m
เดลต้า
Deal found 9/6฿62,012
Sun 27/1200:15
CNX
-
DCA
2 stops51h 04m
Korean Air
Mon 11/119:30
DCA
-
CNX
2 stops39h 25m
Korean Air
Deal found 9/6฿63,262
Mon 28/1200:15
CNX
-
DCA
2 stops51h 04m
Korean Air
Fri 15/107:00
DCA
-
CNX
2 stops27h 55m
Korean Air
Deal found 9/6฿65,270
Tue 29/1200:15
CNX
-
DCA
2 stops27h 04m
Korean Air
Mon 11/117:00
DCA
-
CNX
2 stops41h 55m
Korean Air
Deal found 9/6฿65,533
Thu 31/1208:50
CNX
-
DCA
2 stops45h 08m
เอทิฮัดแอร์เวย์
Tue 12/111:59
DCA
-
CNX
2 stops30h 06m
เอทิฮัดแอร์เวย์
Deal found 9/6฿87,817

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 11 June 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

Fly to

Route

Depart

Return

Price

Cheapest one-way

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 6/8

11:20-21:59

2 stops45h 39m

฿25,970

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 4/8

11:20-16:16

2 stops39h 56m

฿26,069

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 3/8

07:00-21:59

3 stops49h 59m

฿28,866
Fastest single journey

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 9/8

11:50-16:16

3 stops39h 26m

฿35,252

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Fri 7/8

11:35-17:59

2 stops41h 24m

฿36,733

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Sorted by cheapest first

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.

See more FAQs

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Alternative routes for Chiang Mai to Reagan-National

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