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Cheap flights from Chiang Mai to Washington, D.C. from ฿15,997

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 20/10. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — WAS
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

฿35,682

One-way from

฿15,997
Air China
  • Air China
  • 20/10-14/11
  • 2 total stops
  • 67h 15m total
  • Chiang Mai to Washington, D.C.
Search Deals
20/10
  • 20/10
  • 3 total stops
  • 40h 33m total
  • Chiang Mai to Washington, D.C.
Search Deals

Find flight deals from Chiang Mai to Washington, D.C.

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 16 September 2025.

Mon 22/923:15CNX - IAD
2 stops35h 23mเดลต้า
Tue 21/1006:15IAD - CNX
2 stops28h 40mเดลต้า
Deal found 16/9฿35,555
Mon 20/1023:05CNX - IAD
1 stop31h 25mAir China
Fri 14/1122:00IAD - CNX
1 stop35h 50mAir China
Deal found 15/9฿35,682
Thu 18/1223:05CNX - IAD
1 stop31h 25mAir China
Fri 2/122:00IAD - CNX
1 stop35h 50mAir China
Deal found 16/9฿35,778
Thu 23/1023:05CNX - IAD
1 stop31h 25mAir China
Fri 14/1122:00IAD - CNX
1 stop35h 50mAir China
Deal found 15/9฿37,272
Mon 22/911:35CNX - BWI
2 stops29h 04mMultiple Airlines
Tue 21/1018:12BWI - CNX
2 stops29h 13mMultiple Airlines
Deal found 15/9฿38,195
Fri 17/1023:15CNX - DCA
2 stops28h 29mเดลต้า
Mon 17/1106:00DCA - CNX
2 stops28h 55mเดลต้า
Deal found 15/9฿39,371
Tue 21/1017:20CNX - DCA
2 stops38h 54mMultiple Airlines
Thu 13/1109:59DCA - CNX
2 stops41h 56mMultiple Airlines
Deal found 15/9฿39,435
Mon 20/1017:25CNX - DCA
2 stops38h 49mMultiple Airlines
Fri 14/1109:59DCA - CNX
2 stops36h 26mMultiple Airlines
Deal found 15/9฿39,498
Sat 8/1108:50CNX - IAD
1 stop43h 00mMultiple Airlines
Wed 21/113:30IAD - CNX
2 stops40h 30mMultiple Airlines
Deal found 14/9฿40,039
Mon 20/1020:00CNX - IAD
2 stops55h 15mMultiple Airlines
Fri 14/1120:30IAD - CNX
2 stops55h 05mMultiple Airlines
Deal found 15/9฿40,389
Mon 22/920:00CNX - IAD
2 stops30h 40mMultiple Airlines
Tue 21/1021:00IAD - CNX
2 stops27h 15mMultiple Airlines
Deal found 15/9฿42,043
Mon 22/923:05CNX - IAD
1 stop31h 25mAir China
Tue 21/1023:00IAD - CNX
1 stop35h 50mAir China
Deal found 15/9฿42,742

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 16 September 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

฿35,778

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 3/3

00:15-23:02

2 stops34h 47m

Washington, D.C. Dulles Intl

Sun 15/3

07:00-22:55

2 stops28h 55m

฿35,873

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 4/3

11:50-05:55

2 stops30h 05m

Washington, D.C. Dulles Intl

Sun 15/3

07:00-10:35

2 stops40h 35m

฿39,212

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sat 18/10

23:15-22:00

2 stops33h 45m

Washington, D.C. Reagan-National

Sun 16/11

22:00-22:55

2 stops36h 55m

฿39,371

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 22/10

23:15-22:07

2 stops33h 52m

Washington, D.C. Reagan-National

Mon 17/11

06:59-22:55

2 stops27h 56m

฿39,371

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 21/10

23:15-17:10

2 stops28h 55m

Washington, D.C. Reagan-National

Sun 16/11

22:00-22:55

2 stops36h 55m

฿39,371

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Fri 17/10

23:15-19:40

2 stops31h 25m

Washington, D.C. Reagan-National

Sun 16/11

22:00-22:55

2 stops36h 55m

฿39,371

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 20/10

23:15-15:28

2 stops51h 13m

Washington, D.C. Reagan-National

Sun 16/11

22:00-22:55

2 stops36h 55m

฿39,371

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Thu 23/10

23:15-15:00

2 stops26h 45m

Washington, D.C. Reagan-National

Mon 17/11

06:00-22:55

2 stops28h 55m

฿39,371

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 19/10

23:15-19:40

2 stops31h 25m

Washington, D.C. Reagan-National

Sun 16/11

22:00-22:55

2 stops36h 55m

฿39,371

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 48 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 16 September 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
8.0
Very Good
7,957 reviews
Check prices

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
เดลต้า
8.0
Very Good
7,957 reviews
เดลต้า
8.0
Very Good
7,957 reviews
Check prices

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

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 ฿39,212, Air China can have you in Washington, D.C. from Chiang Mai in 30h 05m. Airlines will cover a distance of 13576 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Chiang Mai to Washington, D.C. one-way?

    The cheapest airline one-way is Korean Air, with whom users have recently found tickets for as low as ฿21,371. However, be on the lookout for offers from Air China and เดลต้า, as they are both options that can get you from Chiang Mai to Washington, D.C. for a low price.

  • 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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