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Cheap flights from Chiang Mai to Washington, D.C. from ฿24,665

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 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — WAS
1 Aug — 8 Aug1
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 2 July 2026.

Wed 4/1100:15
CNX
-
IAD
1 stop21h 35m
Korean Air
Mon 9/1111:50
IAD
-
CNX
1 stop23h 05m
Korean Air
Deal found 28/6฿37,065
Thu 5/1119:45
CNX
-
IAD
2 stops32h 10m
Qatar Airways
Mon 9/1120:05
IAD
-
CNX
2 stops25h 20m
Qatar Airways
Deal found 28/6฿44,764
Thu 10/917:20
CNX
-
IAD
2 stops47h 20m
STARLUX Airlines
Sun 13/917:57
IAD
-
CNX
2 stops35h 23m
STARLUX Airlines
Deal found 26/6฿45,031
Thu 2/709:45
CNX
-
IAD
2 stops41h 00m
Multiple Airlines
Wed 8/701:50
IAD
-
CNX
1 stop21h 35m
Multiple Airlines
Deal found 28/6฿46,398
Thu 2/711:35
CNX
-
BWI
2 stops40h 29m
Multiple Airlines
Thu 9/718:07
BWI
-
CNX
2 stops29h 18m
Multiple Airlines
Deal found 28/6฿48,531
Thu 2/711:35
CNX
-
DCA
2 stops39h 41m
Multiple Airlines
Thu 9/718:59
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Deal found 28/6฿49,831
Tue 3/1100:15
CNX
-
DCA
2 stops29h 50m
Korean Air
Sun 8/1120:50
DCA
-
CNX
2 stops38h 05m
Korean Air
Deal found 28/6฿52,064
Thu 10/921:45
CNX
-
DCA
2 stops34h 56m
Korean Air
Sun 13/908:00
DCA
-
CNX
2 stops49h 45m
Korean Air
Deal found 26/6฿55,897
Fri 14/811:20
CNX
-
BWI
2 stops30h 15m
Multiple Airlines
Fri 21/820:15
BWI
-
CNX
2 stops27h 05m
Multiple Airlines
Deal found 30/6฿171,157
Tue 15/911:20
CNX
-
BWI
2 stops30h 15m
Multiple Airlines
Thu 17/1218:11
BWI
-
CNX
2 stops28h 14m
Multiple Airlines
Deal found 27/6฿206,589
Tue 15/911:35
CNX
-
DCA
2 stops32h 20m
Multiple Airlines
Thu 17/1217:04
DCA
-
CNX
2 stops29h 31m
Multiple Airlines
Deal found 27/6฿217,988
Thu 17/921:45
CNX
-
DCA
2 stops36h 58m
Korean Air
Wed 16/1207:00
DCA
-
CNX
2 stops27h 55m
Korean Air
Deal found 27/6฿247,720

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 2 July 2026.

Round-trip from

฿37,065

One-way from

฿24,665
Korean Air
  • Korean Air
  • 4/11-9/11
  • 2 total stops
  • 44h 40m total
  • Chiang Mai to Washington, D.C.
Search Deals
26/11
  • 26/11
  • 2 total stops
  • 51h 00m 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 July 2026.
Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 5/11

19:45-15:55

2 stops32h 10m

Washington, D.C. Dulles Intl

Mon 9/11

20:05-09:25

2 stops25h 20m

฿44,764

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 10/9

17:20-05:40

2 stops47h 20m

Washington, D.C. Dulles Intl

Sun 13/9

17:57-16:20

2 stops35h 23m

฿45,031
Fastest return journey

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 4/11

00:15-09:50

1 stop21h 35m

Washington, D.C. Dulles Intl

Mon 9/11

11:50-22:55

1 stop23h 05m

฿45,631

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 3/11

00:15-18:05

2 stops29h 50m

Washington, D.C. Reagan-National

Sun 8/11

20:50-22:55

2 stops38h 05m

฿52,064

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 10/9

21:45-21:41

2 stops34h 56m

Washington, D.C. Reagan-National

Sun 13/9

08:00-20:45

2 stops49h 45m

฿55,897

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 10/9

21:45-11:05

1 stop24h 20m

Washington, D.C. Dulles Intl

Sun 13/9

08:00-20:45

2 stops25h 45m

฿67,630

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Fri 14/8

11:20-06:35

2 stops30h 15m

Baltimore/Washington

Fri 21/8

20:15-10:20

2 stops27h 05m

฿171,157

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 14/8

20:00-16:45

2 stops55h 45m

Washington, D.C. Dulles Intl

Fri 21/8

20:20-13:45

2 stops30h 25m

฿189,556

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 15/9

10:10-22:00

2 stops46h 50m

Washington, D.C. Dulles Intl

Mon 14/12

23:55-09:25

2 stops45h 30m

฿196,423

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Tue 15/9

11:20-06:35

2 stops30h 15m

Baltimore/Washington

Thu 17/12

18:11-10:25

2 stops28h 14m

฿206,589

Flights are sorted by cheapest return flights first.

Deals found on 28/6

Showing 1-10 of 23 resultsSorted by cheapest first
1
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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 July 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
7.8
Good
8,452 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
เดลต้า
7.8
Good
8,452 reviews
เดลต้า
7.8
Good
8,452 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

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 ฿45,631, Qatar Airways can have you in Washington, D.C. from Chiang Mai in 21h 35m. 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

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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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