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Cheap flights from Chiang Mai to Washington, D.C. from ฿23,720

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — WAS
13 Sep — 20 Sep1
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 August 2026.

Sun 6/920:00 -
2 stops55h 45m
Sun 13/920:20 -
2 stops30h 25m
Deal found 9/8฿38,826
Tue 1/917:20 -
2 stops47h 20m
Tue 15/917:57 -
2 stops35h 08m
Deal found 9/8฿40,218
Sun 6/923:00 -
1 stop22h 50m
Sun 13/921:00 -
2 stops25h 20m
Deal found 9/8฿43,829
Wed 23/914:35 -
2 stops36h 05m
Sun 27/921:00 -
2 stops35h 10m
Deal found 10/8฿43,895
Sun 6/911:35 -
2 stops41h 24m
Sun 13/909:30 -
2 stops37h 55m
Deal found 9/8฿44,094
Tue 1/920:00 -
2 stops37h 00m
Mon 14/901:15 -
1 stop22h 10m
Deal found 12/8฿47,506
Sun 6/911:35 -
2 stops29h 55m
Sun 13/919:15 -
2 stops28h 10m
Deal found 9/8฿51,216
Wed 23/921:45 -
2 stops49h 00m
Sun 27/913:15 -
1 stop44h 30m
Deal found 8/8฿54,927
Tue 22/921:45 -
2 stops26h 02m
Sat 26/916:00 -
2 stops41h 45m
Deal found 11/8฿56,417
Wed 23/921:45 -
2 stops28h 55m
Sat 26/917:10 -
2 stops40h 35m
Deal found 11/8฿68,509

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 August 2026.

Round-trip from

฿38,826

One-way from

฿23,720
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
  • สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
  • 6/9-13/9
  • 4 total stops
  • 86h 10m total
  • Chiang Mai to Washington, D.C.
Search Deals
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 31/1
  • 1 total stop
  • 35h 55m 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 August 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 Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Sun 6/9

20:00-16:45

2 stops55h 45m

Washington, D.C. Dulles Intl

Sun 13/9

22:05-13:45

3 stops28h 40m

฿40,052

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Tue 1/9

17:20-05:40

2 stops47h 20m

Washington, D.C. Dulles Intl

Tue 15/9

17:57-16:05

2 stops35h 08m

฿40,218

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Wed 23/9

14:35-15:40

2 stops36h 05m

Washington, D.C. Dulles Intl

Sun 27/9

21:00-19:10

2 stops35h 10m

฿43,895

Chiang MaiWashington, D.C.

CNX Chiang Mai - DCA Washington, D.C. Reagan-National

CNXDCA

Chiang Mai

Sun 6/9

11:35-17:59

2 stops41h 24m

Washington, D.C. Reagan-National

Sun 13/9

09:30-10:25

2 stops37h 55m

฿44,094

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Fri 5/2

09:10-09:05

1 stop35h 55m

Washington, D.C. Dulles Intl

Mon 8/2

14:35-19:00

2 stops40h 25m

฿45,286

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Tue 1/9

20:00-22:00

2 stops37h 00m

Washington, D.C. Dulles Intl

Mon 14/9

01:15-10:25

1 stop22h 10m

฿47,506
Fastest return journey

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Thu 4/2

00:15-09:50

1 stop21h 35m

Washington, D.C. Dulles Intl

Mon 8/2

11:50-22:55

1 stop23h 05m

฿48,433

Chiang MaiBaltimore

CNX Chiang Mai - BWI Baltimore/Washington

CNXBWI

Chiang Mai

Sun 6/9

11:35-06:30

2 stops29h 55m

Baltimore/Washington

Sun 13/9

19:15-10:25

2 stops28h 10m

฿51,216

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Wed 23/9

21:45-11:45

2 stops49h 00m

Washington, D.C. Dulles Intl

Sun 27/9

13:15-20:45

1 stop44h 30m

฿54,927

Chiang MaiWashington, D.C.

CNX Chiang Mai - DCA Washington, D.C. Reagan-National

CNXDCA

Chiang Mai

Tue 22/9

21:45-12:47

2 stops26h 02m

Washington, D.C. Reagan-National

Sat 26/9

16:00-20:45

2 stops41h 45m

฿56,417

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 29 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 14 August 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
8,502 reviews
Check prices

Food

7.2

Entertainment

7.8

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

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
8,502 reviews
เดลต้า
7.8
Good
8,502 reviews
Check prices

Food

7.2

Entertainment

7.8

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

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 ฿43,895, สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ can have you in Washington, D.C. from Chiang Mai in 36h 05m. 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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