Find flights
When to book
Airlines
FAQs
Thailand (ภาษาไทย)
ภาษาไทย

Cheap flights from Chiang Mai to Washington, D.C. from ฿18,842

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 29/1. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — WAS
17 Dec — 24 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 November 2025.

Thu 18/1212:10CNX - IAD
2 stops39h 45mQatar Airways
Fri 2/110:40IAD - CNX
2 stops34h 45mQatar Airways
Deal found 17/11฿41,609
Thu 18/1208:50CNX - IAD
1 stop36h 15mเอทิฮัดแอร์เวย์
Fri 2/114:35IAD - CNX
1 stop27h 30mเอทิฮัดแอร์เวย์
Deal found 17/11฿44,041
Wed 17/1200:15CNX - IAD
2 stops35h 12mเดลต้า
Fri 2/111:50IAD - CNX
1 stop23h 05mเดลต้า
Deal found 17/11฿55,327
Thu 18/1211:50CNX - BWI
2 stops32h 27mMultiple Airlines
Fri 2/119:00BWI - CNX
2 stops27h 35mMultiple Airlines
Deal found 17/11฿59,446
Wed 17/1200:15CNX - BWI
2 stops34h 48mเดลต้า
Fri 2/112:34BWI - CNX
2 stops46h 21mเดลต้า
Deal found 17/11฿74,267
Thu 18/1222:05CNX - BWI
2 stops27h 56mKorean Air
Fri 2/106:00BWI - CNX
2 stops28h 55mKorean Air
Deal found 16/11฿90,709

Cheap 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 November 2025.

Round-trip from

฿41,609

One-way from

฿18,842
Qatar Airways
  • Qatar Airways
  • 18/12-2/1
  • 4 total stops
  • 74h 30m total
  • Chiang Mai to Washington, D.C.
Search Deals
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 29/1
  • 1 total stop
  • 36h 15m 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 November 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 - IAD

CNXIAD

Chiang Mai

Thu 18/12

10:10-15:55

2 stops41h 45m

Washington, D.C. Dulles Intl

Fri 2/1

10:40-09:25

2 stops34h 45m

฿41,609

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 18/12

08:50-09:05

1 stop36h 15m

Washington, D.C. Dulles Intl

Fri 2/1

14:35-06:05

1 stop27h 30m

฿44,041

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 18/2

10:10-15:55

2 stops41h 45m

Washington, D.C. Dulles Intl

Sun 22/2

20:05-21:00

2 stops36h 55m

฿46,798

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/12

00:15-00:12

2 stops35h 57m

Washington, D.C. Dulles Intl

Fri 2/1

06:00-22:55

2 stops28h 55m

฿55,327

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Thu 18/12

11:50-08:17

2 stops32h 27m

Baltimore/Washington

Fri 2/1

19:00-10:35

2 stops27h 35m

฿59,446

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Wed 17/12

00:15-23:03

2 stops34h 48m

Baltimore/Washington

Fri 2/1

12:34-22:55

2 stops46h 21m

฿74,267

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 4/1

11:50-20:39

2 stops44h 49m

Washington, D.C. Reagan-National

Wed 14/1

18:56-10:35

2 stops51h 39m

฿86,363

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Thu 18/12

22:05-14:01

2 stops27h 56m

Baltimore/Washington

Fri 2/1

06:00-22:55

2 stops28h 55m

฿90,709

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sat 3/1

00:15-19:17

2 stops31h 02m

Washington, D.C. Reagan-National

Wed 14/1

06:59-22:55

2 stops27h 56m

฿93,531

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 17/2

00:15-12:04

2 stops23h 49m

Washington, D.C. Reagan-National

Sun 22/2

06:00-22:55

2 stops28h 55m

฿95,055

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 31 results
1
2
3
4

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 November 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

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

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

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

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 ฿74,267, Qatar Airways can have you in Washington, D.C. from Chiang Mai in 34h 48m. Airlines will cover a distance of 13547 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. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.