Find flights
When to book
Airlines
FAQs

Cheap flights from Chiang Mai to Washington, D.C. from ฿14,911

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
16 Mar — 23 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 14 February 2026.

Mon 23/318:25
CNX
-
IAD
2 stops36h 05m
Multiple Airlines
Mon 24/813:20
IAD
-
CNX
1 stop45h 40m
Multiple Airlines
Deal found 14/2฿33,675
Tue 26/511:35
CNX
-
IAD
2 stops47h 24m
Multiple Airlines
Tue 2/617:33
IAD
-
CNX
2 stops29h 52m
Multiple Airlines
Deal found 11/2฿36,315
Mon 23/318:25
CNX
-
IAD
2 stops36h 05m
Multiple Airlines
Mon 24/801:50
IAD
-
CNX
1 stop21h 35m
Multiple Airlines
Deal found 14/2฿37,465
Wed 25/321:45
CNX
-
IAD
2 stops33h 35m
Multiple Airlines
Mon 24/813:20
IAD
-
CNX
1 stop45h 40m
Multiple Airlines
Deal found 14/2฿38,676
Mon 23/318:15
CNX
-
IAD
2 stops36h 15m
Multiple Airlines
Fri 21/801:50
IAD
-
CNX
1 stop21h 35m
Multiple Airlines
Deal found 14/2฿38,863
Tue 26/509:30
CNX
-
IAD
1 stop35h 15m
เอทิฮัดแอร์เวย์
Tue 2/615:10
IAD
-
CNX
1 stop28h 15m
เอทิฮัดแอร์เวย์
Deal found 13/2฿39,204
Tue 24/311:50
CNX
-
DCA
2 stops43h 10m
EVA Air
Tue 25/809:59
DCA
-
CNX
2 stops37h 26m
EVA Air
Deal found 14/2฿39,266
Tue 24/311:50
CNX
-
DCA
2 stops43h 10m
Multiple Airlines
Wed 26/818:59
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Deal found 14/2฿39,453
Tue 24/310:10
CNX
-
IAD
2 stops40h 30m
ออสเตรียนแอร์ไลน์
Tue 25/817:25
IAD
-
CNX
2 stops38h 45m
ออสเตรียนแอร์ไลน์
Deal found 14/2฿39,608
Tue 24/310:35
CNX
-
IAD
2 stops33h 45m
Multiple Airlines
Mon 24/813:20
IAD
-
CNX
1 stop45h 40m
Multiple Airlines
Deal found 14/2฿39,826
Tue 24/311:25
CNX
-
BWI
2 stops29h 10m
Multiple Airlines
Tue 25/819:10
BWI
-
CNX
2 stops28h 10m
Multiple Airlines
Deal found 14/2฿40,354
Tue 24/308:50
CNX
-
IAD
1 stop36h 15m
เอทิฮัดแอร์เวย์
Tue 25/815:10
IAD
-
CNX
1 stop28h 15m
เอทิฮัดแอร์เวย์
Deal found 14/2฿40,416

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 14 February 2026.

Round-trip from

฿33,675

One-way from

฿14,911
23/3-24/8
  • 23/3-24/8
  • 3 total stops
  • 81h 45m total
  • Chiang Mai to Washington, D.C.
Search Deals
Air China
  • Air China
  • 16/3
  • 1 total stop
  • 31h 25m 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 14 February 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

Tue 26/5

11:35-23:59

2 stops47h 24m

Washington, D.C. Dulles Intl

Tue 2/6

17:33-10:25

2 stops29h 52m

฿36,315

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

฿39,204

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 24/3

11:50-20:00

2 stops43h 10m

Washington, D.C. Reagan-National

Tue 25/8

09:59-10:25

2 stops37h 26m

฿39,266

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 24/3

11:50-20:00

2 stops43h 10m

Washington, D.C. Reagan-National

Wed 26/8

18:59-10:25

2 stops28h 26m

฿39,453

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 24/3

10:10-15:40

2 stops40h 30m

Washington, D.C. Dulles Intl

Tue 25/8

17:25-19:10

2 stops38h 45m

฿39,608

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 24/3

10:10-15:40

2 stops40h 30m

Washington, D.C. Dulles Intl

Wed 26/8

20:20-13:45

2 stops30h 25m

฿40,167

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 23/3

19:45-15:40

2 stops54h 55m

Washington, D.C. Dulles Intl

Tue 25/8

20:20-13:45

2 stops30h 25m

฿40,292

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Tue 24/3

11:25-05:35

2 stops29h 10m

Baltimore/Washington

Tue 25/8

19:10-10:20

2 stops28h 10m

฿40,354

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 12/6

11:20-15:05

2 stops38h 45m

Washington, D.C. Dulles Intl

Tue 14/7

17:01-10:20

2 stops30h 19m

฿41,938

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 21/3

22:50-16:55

2 stops29h 05m

Washington, D.C. Dulles Intl

Mon 24/8

13:20-22:00

1 stop45h 40m

฿42,373

Flights are sorted by cheapest return flights first.

Deals found on 12/2

Showing 1-10 of 41 results
1
2
3
...
5

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 14 February 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
8,203 reviews
Check prices

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

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
8,203 reviews
เดลต้า
7.9
Good
8,203 reviews
Check prices

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

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 ฿39,204, เอทิฮัดแอร์เวย์ can have you in Washington, D.C. from Chiang Mai in 35h 15m. Airlines will cover a distance of 13576 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.