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Cheap flights from Chiang Mai to Washington, D.C. from ฿19,163

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — WAS
16 Jan — 23 Jan1
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 17 December 2025.

Wed 17/1200:15CNX - IAD
2 stops35h 12mเดลต้า
Fri 2/107:05IAD - CNX
2 stops27h 50mเดลต้า
Deal found 17/12฿49,119
Thu 18/1208:50CNX - IAD
1 stop36h 15mเอทิฮัดแอร์เวย์
Fri 2/114:35IAD - CNX
1 stop27h 35mเอทิฮัดแอร์เวย์
Deal found 17/12฿62,398
Thu 18/1211:50CNX - BWI
2 stops32h 27mMultiple Airlines
Fri 2/107:04BWI - CNX
2 stops39h 31mMultiple Airlines
Deal found 17/12฿63,311
Wed 17/1200:15CNX - BWI
2 stops28h 36mเดลต้า
Fri 2/106:00BWI - CNX
2 stops28h 55mเดลต้า
Deal found 16/12฿75,362

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 17 December 2025.

Round-trip from

฿32,159

One-way from

฿19,163
9/6-12/8
  • 9/6-12/8
  • 4 total stops
  • 71h 51m total
  • Chiang Mai to Washington, D.C.
Search Deals
12/4
  • 12/4
  • 2 total stops
  • 40h 45m 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 17 December 2025.
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 - DCA

CNXDCA

Chiang Mai

Tue 9/6

11:35-20:00

2 stops43h 25m

Washington, D.C. Reagan-National

Wed 12/8

18:59-10:25

2 stops28h 26m

฿32,159

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 9/6

11:35-20:00

2 stops43h 25m

Washington, D.C. Reagan-National

Thu 13/8

18:59-10:25

2 stops28h 26m

฿32,159

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 9/6

11:35-20:00

2 stops43h 25m

Washington, D.C. Reagan-National

Tue 11/8

18:59-10:25

2 stops28h 26m

฿32,159

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 29/1

11:50-20:00

2 stops44h 10m

Washington, D.C. Reagan-National

Thu 5/2

09:59-10:35

2 stops60h 36m

฿32,379

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Wed 10/6

11:35-06:21

2 stops29h 46m

Baltimore/Washington

Tue 11/8

19:10-10:25

2 stops28h 15m

฿32,820

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Thu 11/6

11:35-06:21

2 stops29h 46m

Baltimore/Washington

Tue 11/8

19:10-10:25

2 stops28h 15m

฿32,820

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Tue 9/6

11:35-06:29

2 stops29h 54m

Baltimore/Washington

Tue 11/8

19:10-10:25

2 stops28h 15m

฿32,820

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Thu 11/6

11:35-06:21

2 stops29h 46m

Baltimore/Washington

Wed 12/8

19:10-10:25

2 stops28h 15m

฿32,820

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 11/6

11:35-07:28

2 stops30h 53m

Washington, D.C. Dulles Intl

Thu 13/8

19:18-10:25

2 stops28h 07m

฿32,945

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Tue 9/6

11:35-06:29

2 stops29h 54m

Baltimore/Washington

Fri 14/8

19:10-10:25

2 stops28h 15m

฿32,945

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 48 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 17 December 2025.
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
8,008 reviews
Check prices

Boarding

8.1

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

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
8,008 reviews
เดลต้า
7.9
Good
8,008 reviews
Check prices

Boarding

8.1

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Entertainment

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 ฿33,638, STARLUX Airlines can have you in Washington, D.C. from Chiang Mai in 49h 08m. Airlines will cover a distance of 13576 km.

  • 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. Dulles Intl, Chiang Mai - Baltimore/Washington or Chiang Mai - Washington, D.C. Reagan-National, 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 Dulles Intl flights
Chiang Mai to Reagan-National 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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