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Cheap flights from Chiang Mai to Washington, D.C. from ฿17,777

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 — WAS
22 Feb — 1 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Chiang Mai to Washington, D.C.
Explore the most affordable flight options available from Chiang Mai to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 January 2026.

Tue 26/511:35
CNX
-
IAD
2 stops30h 59m
EVA Air
Tue 2/617:33
IAD
-
CNX
2 stops29h 52m
EVA Air
Deal found 21/1฿32,930
Sun 10/511:20
CNX
-
IAD
2 stops29h 30m
Multiple Airlines
Sun 31/517:33
IAD
-
CNX
2 stops29h 47m
Multiple Airlines
Deal found 21/1฿35,211
Thu 30/411:20
CNX
-
IAD
2 stops29h 30m
Multiple Airlines
Sun 31/517:33
IAD
-
CNX
2 stops29h 47m
Multiple Airlines
Deal found 21/1฿36,617
Tue 5/511:35
CNX
-
IAD
2 stops41h 45m
Multiple Airlines
Mon 1/617:33
IAD
-
CNX
2 stops29h 52m
Multiple Airlines
Deal found 21/1฿36,710
Tue 5/511:35
CNX
-
BWI
2 stops41h 41m
Multiple Airlines
Mon 1/619:27
BWI
-
CNX
2 stops27h 58m
Multiple Airlines
Deal found 21/1฿36,710
Sun 10/511:20
CNX
-
BWI
2 stops25h 00m
Multiple Airlines
Sun 31/519:27
BWI
-
CNX
2 stops27h 53m
Multiple Airlines
Deal found 21/1฿37,117
Tue 5/511:35
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Mon 1/617:00
DCA
-
CNX
2 stops30h 25m
Multiple Airlines
Deal found 21/1฿37,648
Thu 30/411:35
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Sun 31/509:59
DCA
-
CNX
2 stops61h 26m
Multiple Airlines
Deal found 21/1฿38,241
Sun 10/511:35
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Sun 31/509:59
DCA
-
CNX
2 stops61h 26m
Multiple Airlines
Deal found 21/1฿39,210
Thu 30/411:20
CNX
-
BWI
2 stops29h 20m
Multiple Airlines
Sun 31/519:27
BWI
-
CNX
2 stops27h 53m
Multiple Airlines
Deal found 21/1฿39,241
Tue 26/509:30
CNX
-
IAD
1 stop35h 15m
เอทิฮัดแอร์เวย์
Tue 2/615:10
IAD
-
CNX
1 stop28h 15m
เอทิฮัดแอร์เวย์
Deal found 22/1฿39,272
Thu 30/409:30
CNX
-
IAD
1 stop35h 15m
เอทิฮัดแอร์เวย์
Sun 31/515:10
IAD
-
CNX
1 stop28h 15m
เอทิฮัดแอร์เวย์
Deal found 21/1฿39,429

Find flight deals from Chiang Mai to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Washington, D.C. (WAS). 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 23 January 2026.

Round-trip from

฿32,368

One-way from

฿17,777
21/4-24/5
  • 21/4-24/5
  • 4 total stops
  • 80h 51m total
  • Chiang Mai to Washington, D.C.
Search Deals
16/3
  • 16/3
  • 3 total stops
  • 55h 55m total
  • Chiang Mai to Washington, D.C.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to Washington, D.C. 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 23 January 2026.
Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. that are best for you.

Fly from

Chiang Mai

Fly to

Washington, D.C.

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sun 10/5

11:20-05:50

2 stops29h 30m

Washington, D.C. Dulles Intl

Sun 31/5

17:33-10:20

2 stops29h 47m

฿35,211

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 30/4

11:20-05:50

2 stops29h 30m

Washington, D.C. Dulles Intl

Sun 31/5

17:33-10:20

2 stops29h 47m

฿36,617

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 5/5

11:35-18:20

2 stops41h 45m

Washington, D.C. Dulles Intl

Mon 1/6

17:33-10:25

2 stops29h 52m

฿36,710

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Tue 5/5

11:35-18:16

2 stops41h 41m

Baltimore/Washington

Mon 1/6

19:27-10:25

2 stops27h 58m

฿36,710

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Sun 10/5

11:20-01:20

2 stops25h 00m

Baltimore/Washington

Sun 31/5

19:27-10:20

2 stops27h 53m

฿37,117

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 5/5

11:35-20:00

2 stops43h 25m

Washington, D.C. Reagan-National

Mon 1/6

17:00-10:25

2 stops30h 25m

฿37,648

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 30/4

11:35-20:00

2 stops43h 25m

Washington, D.C. Reagan-National

Sun 31/5

09:59-10:25

2 stops61h 26m

฿38,241

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 10/5

11:35-20:00

2 stops43h 25m

Washington, D.C. Reagan-National

Sun 31/5

09:59-10:25

2 stops61h 26m

฿39,210

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Thu 30/4

11:20-05:40

2 stops29h 20m

Baltimore/Washington

Sun 31/5

19:27-10:20

2 stops27h 53m

฿39,241

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 26/5

09:30-09:45

1 stop35h 15m

Washington, D.C. Dulles Intl

Tue 2/6

15:10-06:25

1 stop28h 15m

฿39,272

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 40 results
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Best time to book a flight from Chiang Mai to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Washington, D.C.
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 23 January 2026.
Read reviews from past customers who have flown with เดลต้า from Chiang Mai to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
เดลต้า
7.9
Good
8,093 reviews
Check prices

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
เดลต้า
7.9
Good
8,093 reviews
เดลต้า
7.9
Good
8,093 reviews
Check prices

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Washington, D.C.. 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.?

    Chiang Mai (CNX), located 3.1 km from the city centre, is the airport you fly out of when you book flights from Chiang Mai to Washington, D.C.. 0 airlines have flights from Chiang Mai to Washington, D.C. on a regular basis. Booking flights from Chiang Mai to Washington, D.C. should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. per day.

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

    For as low as ฿44,552, เอทิฮัดแอร์เวย์ can have you in Washington, D.C. from Chiang Mai in 33h 45m. Airlines will cover a distance of 13584 km. This flight may include one or multiple stops.

  • What are the most popular routes from Chiang Mai to Washington, D.C.?

    When deciding which route to take from Chiang Mai to Washington, D.C., consider Chiang Mai - Washington, D.C. Reagan-National, Chiang Mai - Baltimore/Washington or Chiang Mai - Washington, D.C. Dulles Intl, as they are the most popular.

  • Can I find deals for flights from Chiang Mai to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Chiang Mai to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chiang Mai to Washington, D.C.?

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

  • Can I find deals for business class flights from Chiang Mai to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Chiang Mai to Washington, D.C. 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 Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Reagan-National flights
Chiang Mai to Dulles Intl flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Chiang Mai to Washington, D.C.?

Deals for Chiang Mai to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Washington, D.C.?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington, D.C. from Chiang Mai.

Can Cheapflights find flights from Chiang Mai to Washington, D.C. 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 Washington, D.C., 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 Washington, D.C. become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington, D.C. from Chiang Mai today and book when prices fit your budget.

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