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Cheap flights from Chiang Mai to Washington, D.C. from ฿17,828

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — WAS
2 Dec — 9 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 2 November 2025.

Thu 18/1223:05CNX - IAD
1 stop31h 25mAir China
Fri 2/122:00IAD - CNX
1 stop35h 50mAir China
Deal found 31/10฿36,816
Thu 18/1212:10CNX - IAD
2 stops32h 10mMultiple Airlines
Fri 2/120:05IAD - CNX
2 stops27h 15mMultiple Airlines
Deal found 31/10฿44,746
Tue 16/1211:50CNX - DCA
2 stops42h 09mMultiple Airlines
Tue 23/1218:57DCA - CNX
2 stops51h 38mMultiple Airlines
Deal found 1/11฿49,227
Sat 27/1208:50CNX - IAD
1 stop36h 15mเอทิฮัดแอร์เวย์
Thu 1/114:35IAD - CNX
1 stop27h 30mเอทิฮัดแอร์เวย์
Deal found 30/10฿49,969
Sat 27/1210:10CNX - IAD
2 stops34h 10mMultiple Airlines
Thu 1/120:05IAD - CNX
2 stops25h 20mMultiple Airlines
Deal found 30/10฿52,032
Wed 17/1200:15CNX - IAD
2 stops35h 12mเดลต้า
Fri 2/111:50IAD - CNX
1 stop23h 05mเดลต้า
Deal found 31/10฿55,191
Wed 17/1200:15CNX - BWI
2 stops36h 06mเดลต้า
Fri 2/116:49BWI - CNX
2 stops42h 06mเดลต้า
Deal found 31/10฿73,954
Thu 18/1221:05CNX - BWI
3 stops34h 24mMultiple Airlines
Fri 2/110:16BWI - CNX
3 stops35h 09mMultiple Airlines
Deal found 31/10฿76,533
Thu 18/1222:05CNX - BWI
2 stops27h 56mKorean Air
Fri 2/106:00BWI - CNX
2 stops28h 55mKorean Air
Deal found 31/10฿82,110
Thu 18/1223:05CNX - BWI
2 stops45h 12mAir China
Fri 2/108:00BWI - CNX
2 stops49h 50mAir China
Deal found 1/11฿83,271
Mon 15/1200:15CNX - DCA
2 stops31h 31mเดลต้า
Tue 23/1206:00DCA - CNX
2 stops28h 55mเดลต้า
Deal found 1/11฿104,064

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 2 November 2025.

Round-trip from

฿36,816

One-way from

฿17,828
Air China
  • Air China
  • 18/12-2/1
  • 2 total stops
  • 67h 15m total
  • Chiang Mai to Washington, D.C.
Search Deals
15/11
  • 15/11
  • 3 total stops
  • 52h 40m 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 2 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

23:05-18:30

1 stop31h 25m

Washington, D.C. Dulles Intl

Fri 2/1

22:00-21:50

1 stop35h 50m

฿36,816

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 18/12

12:10-08:20

2 stops32h 10m

Washington, D.C. Dulles Intl

Fri 2/1

20:05-11:20

2 stops27h 15m

฿44,746

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 18/2

12:10-15:55

2 stops39h 45m

Washington, D.C. Dulles Intl

Sun 22/2

20:05-11:20

2 stops27h 15m

฿45,681

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 27/12

08:50-09:05

1 stop36h 15m

Washington, D.C. Dulles Intl

Thu 1/1

14:35-06:05

1 stop27h 30m

฿49,969

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 27/12

10:10-08:20

2 stops34h 10m

Washington, D.C. Dulles Intl

Thu 1/1

20:05-09:25

2 stops25h 20m

฿52,032

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/12

00:15-23:27

2 stops35h 12m

Washington, D.C. Dulles Intl

Fri 2/1

07:05-22:55

2 stops27h 50m

฿55,191

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Thu 18/12

21:05-19:29

3 stops34h 24m

Baltimore/Washington

Fri 2/1

10:16-09:25

3 stops35h 09m

฿76,533

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

฿82,110

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Thu 18/12

23:05-08:17

2 stops45h 12m

Baltimore/Washington

Fri 2/1

08:00-21:50

2 stops49h 50m

฿83,271

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 17/2

00:15-22:16

2 stops34h 01m

Washington, D.C. Reagan-National

Sun 22/2

06:00-22:55

2 stops28h 55m

฿94,683

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 39 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 2 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
7,997 reviews
Check prices

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
เดลต้า
7.9
Good
7,997 reviews
เดลต้า
7.9
Good
7,997 reviews
Check prices

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

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 ฿82,110, Air China can have you in Washington, D.C. from Chiang Mai in 27h 56m. 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

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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

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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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