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Cheap flights from Chiang Mai to Washington, D.C. from ฿17,837

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — WAS
21 Jul — 28 Jul1
1 adult

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 July 2025.

Round-trip from

฿36,974

One-way from

฿17,837
6/9-14/9
  • 6/9-14/9
  • 4 total stops
  • 56h 52m total
  • Chiang Mai to Washington, D.C.
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 57h 39m 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 July 2025.

Wed 17/1211:50CNX - IAD
2 stops30h 05mEVA Air
Sun 18/118:55IAD - CNX
2 stops27h 40mEVA Air
Deal found 14/7฿35,609
Sat 6/923:15CNX - IAD
2 stops35h 06mเดลต้า
Sun 14/909:50IAD - CNX
2 stops25h 05mเดลต้า
Deal found 13/7฿35,707
Sat 6/911:35CNX - BWI
2 stops29h 04mMultiple Airlines
Sun 14/919:37BWI - CNX
2 stops27h 48mMultiple Airlines
Deal found 13/7฿36,974
Fri 29/811:20CNX - DCA
2 stops44h 39mChina Airlines
Sun 7/908:59DCA - CNX
2 stops38h 21mChina Airlines
Deal found 15/7฿37,884
Mon 8/923:05CNX - IAD
1 stop31h 25mAir China
Tue 16/923:00IAD - CNX
1 stop35h 50mAir China
Deal found 13/7฿38,046
Tue 16/1200:15CNX - IAD
1 stop21h 35mKorean Air
Sun 18/111:50IAD - CNX
1 stop23h 15mKorean Air
Deal found 14/7฿38,468
Thu 4/900:45CNX - IAD
1 stop21h 10mMultiple Airlines
Sat 13/913:15IAD - CNX
1 stop23h 25mMultiple Airlines
Deal found 13/7฿38,858
Fri 29/811:35CNX - BWI
2 stops28h 58mEVA Air
Sun 7/919:37BWI - CNX
2 stops27h 48mEVA Air
Deal found 15/7฿40,125
Mon 4/823:15CNX - DCA
2 stops34h 43mเดลต้า
Tue 9/909:40DCA - CNX
2 stops25h 15mเดลต้า
Deal found 15/7฿42,140
Fri 29/800:45CNX - BWI
2 stops39h 48mAsiana Airlines
Sun 7/919:37BWI - CNX
2 stops41h 03mAsiana Airlines
Deal found 13/7฿43,732
Wed 3/911:15CNX - IAD
2 stops54h 16mแอร์แคนาดา
Fri 12/908:25IAD - CNX
2 stops45h 15mแอร์แคนาดา
Deal found 13/7฿44,284
Thu 28/810:10CNX - IAD
2 stops33h 30mQatar Airways
Mon 8/921:00IAD - CNX
2 stops35h 10mQatar Airways
Deal found 13/7฿44,479

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 July 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

Wed 17/12

11:50-05:55

2 stops30h 05m

Washington, D.C. Dulles Intl

Sun 18/1

18:55-10:35

2 stops27h 40m

฿35,609

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 6/9

23:15-17:34

2 stops29h 19m

Washington, D.C. Dulles Intl

Sat 13/9

07:35-21:55

2 stops27h 20m

฿35,707

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Sat 6/9

11:35-05:39

2 stops29h 04m

Baltimore/Washington

Sun 14/9

19:37-10:25

2 stops27h 48m

฿36,974

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Fri 29/8

11:20-20:59

2 stops44h 39m

Washington, D.C. Reagan-National

Sun 7/9

08:59-10:20

2 stops38h 21m

฿37,884

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 8/9

23:05-19:30

1 stop31h 25m

Washington, D.C. Dulles Intl

Tue 16/9

23:00-21:50

1 stop35h 50m

฿38,046

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 16/12

00:15-09:50

1 stop21h 35m

Washington, D.C. Dulles Intl

Sun 18/1

11:50-23:05

1 stop23h 15m

฿38,468

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 4/9

00:45-10:55

1 stop21h 10m

Washington, D.C. Dulles Intl

Sat 13/9

13:15-23:40

1 stop23h 25m

฿38,858

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Fri 29/8

11:35-05:33

2 stops28h 58m

Baltimore/Washington

Sun 7/9

19:37-10:25

2 stops27h 48m

฿40,125

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 4/8

23:15-22:58

2 stops34h 43m

Washington, D.C. Reagan-National

Tue 9/9

09:40-21:55

2 stops25h 15m

฿42,140

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Fri 29/8

00:45-05:33

2 stops39h 48m

Baltimore/Washington

Sun 7/9

19:37-23:40

2 stops41h 03m

฿43,732

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Showing 1-10 of 30 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 July 2025.
Read reviews from past customers who have flown with EVA Air, Korean Air, andChina Airlines 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.
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,214 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very Good
1,109 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.2
Very Good
745 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Asiana Airlines
8.2
Very Good
456 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very Good
3,290 reviews
EVA Air
8.4
Very Good
1,214 reviews
Check prices

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

  • 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 ฿20,989. However, be on the lookout for offers from เดลต้า and China Airlines, 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

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

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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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