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Cheap flights from Chiang Mai to Washington, D.C. from ฿18,146

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
10 Jul — 17 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 5 July 2025.

Round-trip from

฿36,454

One-way from

฿18,146
เดลต้า
  • เดลต้า
  • 17/9-13/10
  • 3 total stops
  • 50h 35m total
  • Chiang Mai to Washington, D.C.
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 32h 19m 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 5 July 2025.

Wed 17/923:15CNX - IAD
1 stop22h 40mเดลต้า
Mon 13/1007:00IAD - CNX
2 stops27h 55mเดลต้า
Deal found 4/7฿36,454
Wed 17/909:25CNX - IAD
2 stops41h 00mMultiple Airlines
Mon 13/1017:25IAD - CNX
2 stops38h 45mMultiple Airlines
Deal found 4/7฿38,004
Wed 17/911:35CNX - DCA
2 stops44h 24mEVA Air
Mon 13/1018:59DCA - CNX
2 stops28h 26mEVA Air
Deal found 4/7฿38,036
Thu 18/1223:05CNX - IAD
1 stop31h 25mAir China
Fri 2/122:00IAD - CNX
1 stop35h 50mAir China
Deal found 4/7฿38,262
Wed 17/911:20CNX - DCA
2 stops44h 39mChina Airlines
Mon 13/1018:59DCA - CNX
2 stops28h 21mChina Airlines
Deal found 5/7฿38,715
Wed 17/923:15CNX - IAD
1 stop22h 40mKorean Air
Mon 13/1013:15IAD - CNX
1 stop44h 30mKorean Air
Deal found 4/7฿40,555
Wed 17/920:00CNX - IAD
3 stops52h 55mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Mon 13/1020:45IAD - CNX
2 stops30h 00mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 4/7฿41,427
Mon 18/809:25CNX - BWI
3 stops32h 29mMultiple Airlines
Mon 25/805:45BWI - CNX
2 stops30h 55mMultiple Airlines
Deal found 4/7฿42,266
Mon 18/823:15CNX - DCA
2 stops32h 32mเดลต้า
Mon 25/818:30DCA - CNX
2 stops40h 25mเดลต้า
Deal found 4/7฿43,300
Mon 4/810:10CNX - IAD
2 stops33h 30mQatar Airways
Tue 9/921:00IAD - CNX
2 stops27h 15mQatar Airways
Deal found 4/7฿44,591
Sat 9/811:20CNX - IAD
2 stops30h 30mChina Airlines
Sun 7/918:09IAD - CNX
2 stops29h 11mChina Airlines
Deal found 4/7฿46,690
Mon 7/723:15CNX - DCA
2 stops35h 14mKorean Air
Sun 13/720:46DCA - CNX
2 stops38h 09mKorean Air
Deal found 5/7฿53,180

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 5 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 17/9

23:15-10:55

1 stop22h 40m

Washington, D.C. Dulles Intl

Mon 13/10

07:00-21:55

2 stops27h 55m

฿36,454

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/9

09:25-15:25

2 stops41h 00m

Washington, D.C. Dulles Intl

Mon 13/10

17:25-19:10

2 stops38h 45m

฿38,004

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 17/9

11:35-20:59

2 stops44h 24m

Washington, D.C. Reagan-National

Mon 13/10

18:59-10:25

2 stops28h 26m

฿38,036

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

฿38,262

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 17/9

11:20-20:59

2 stops44h 39m

Washington, D.C. Reagan-National

Mon 13/10

18:59-10:20

2 stops28h 21m

฿38,715

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/9

23:15-10:55

1 stop22h 40m

Washington, D.C. Dulles Intl

Mon 13/10

13:15-20:45

1 stop44h 30m

฿40,555

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/9

20:00-13:55

3 stops52h 55m

Washington, D.C. Dulles Intl

Mon 13/10

20:45-13:45

2 stops30h 00m

฿41,427

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Mon 18/8

09:25-06:54

3 stops32h 29m

Baltimore/Washington

Mon 25/8

05:45-23:40

2 stops30h 55m

฿42,266

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Mon 18/8

23:15-20:47

2 stops32h 32m

Washington, D.C. Reagan-National

Mon 25/8

18:30-21:55

2 stops40h 25m

฿43,300

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 4/8

10:10-08:40

2 stops33h 30m

Washington, D.C. Dulles Intl

Tue 9/9

21:00-11:15

2 stops27h 15m

฿44,591

Flights are sorted by cheapest return flights first.

Deals found on 5/7

Showing 1-10 of 27 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 5 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
1,210 reviews
Check prices

Crew

8.6

Food

8.1

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
1,210 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Crew

8.6

Food

8.1

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
1,102 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Crew

8.6

Food

8.1

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
8.3
Very Good
744 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Crew

8.6

Food

8.1

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
454 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Crew

8.6

Food

8.1

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
เดลต้า
8.0
Very Good
7,968 reviews
EVA Air
8.4
Very Good
1,210 reviews
Check prices

Crew

8.6

Food

8.1

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 ฿20,956. However, be on the lookout for offers from เดลต้า and Air China, 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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