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Cheap flights from Chiang Mai to Washington, D.C. from ฿24,858

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — WAS
20 Jun — 27 Jun1
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 15 June 2025.

Round-trip from

฿35,511

One-way from

฿24,858
เดลต้า
  • เดลต้า
  • 3/9-23/10
  • 4 total stops
  • 63h 35m total
  • Chiang Mai to Washington, D.C.
Search Deals
เดลต้า
  • เดลต้า
  • 12/7
  • 2 total stops
  • 35h 27m 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 15 June 2025.

Wed 3/923:15CNX - IAD
2 stops34h 40mเดลต้า
Fri 24/1007:00IAD - CNX
2 stops27h 55mเดลต้า
Deal found 13/6฿35,511
Wed 3/923:15CNX - DCA
2 stops33h 32mเดลต้า
Fri 24/1006:10DCA - CNX
2 stops28h 45mเดลต้า
Deal found 13/6฿35,511
Fri 14/1111:50CNX - IAD
2 stops30h 33mEVA Air
Tue 25/1107:00IAD - CNX
2 stops39h 35mEVA Air
Deal found 14/6฿36,028
Fri 14/1110:10CNX - IAD
2 stops41h 20mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Tue 25/1118:20IAD - CNX
3 stops31h 25mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 14/6฿36,835
Fri 5/911:20CNX - DCA
2 stops44h 39mMultiple Airlines
Tue 21/1006:00DCA - CNX
2 stops28h 55mMultiple Airlines
Deal found 13/6฿37,481
Fri 14/1111:50CNX - DCA
2 stops44h 10mEVA Air
Tue 25/1108:00DCA - CNX
2 stops38h 35mEVA Air
Deal found 14/6฿37,642
Mon 8/923:05CNX - IAD
1 stop31h 25mAir China
Tue 21/1023:00IAD - CNX
1 stop35h 50mAir China
Deal found 13/6฿38,159
Fri 14/1111:50CNX - BWI
2 stops30h 28mMultiple Airlines
Tue 25/1118:55BWI - CNX
2 stops27h 40mMultiple Airlines
Deal found 14/6฿39,385
Thu 4/900:45CNX - IAD
1 stop21h 10mMultiple Airlines
Tue 21/1009:00IAD - CNX
2 stops38h 25mMultiple Airlines
Deal found 13/6฿44,551
Thu 4/921:10CNX - IAD
2 stops28h 25mออสเตรียนแอร์ไลน์
Wed 22/1017:25IAD - CNX
2 stops38h 45mออสเตรียนแอร์ไลน์
Deal found 13/6฿45,196
Thu 4/921:45CNX - IAD
1 stop24h 10mKorean Air
Fri 24/1006:15IAD - CNX
2 stops28h 40mKorean Air
Deal found 13/6฿46,552
Wed 30/711:15CNX - IAD
2 stops54h 06mแอร์แคนาดา
Tue 12/808:19IAD - CNX
2 stops45h 21mแอร์แคนาดา
Deal found 13/6฿46,746

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 15 June 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 3/9

23:15-22:55

2 stops34h 40m

Washington, D.C. Dulles Intl

Fri 24/10

07:00-21:55

2 stops27h 55m

฿35,511

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Wed 3/9

23:15-21:47

2 stops33h 32m

Washington, D.C. Reagan-National

Fri 24/10

06:10-21:55

2 stops28h 45m

฿35,511

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 14/11

11:50-06:23

2 stops30h 33m

Washington, D.C. Dulles Intl

Tue 25/11

07:00-10:35

2 stops39h 35m

฿36,028

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 14/11

10:10-15:30

2 stops41h 20m

Washington, D.C. Dulles Intl

Tue 25/11

18:20-13:45

3 stops31h 25m

฿36,835

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Fri 5/9

11:20-20:59

2 stops44h 39m

Washington, D.C. Reagan-National

Tue 21/10

06:00-21:55

2 stops28h 55m

฿37,481

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Fri 14/11

11:50-20:00

2 stops44h 10m

Washington, D.C. Reagan-National

Tue 25/11

08:00-10:35

2 stops38h 35m

฿37,642

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 21/10

23:00-21:50

1 stop35h 50m

฿38,159

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Fri 14/11

11:50-06:18

2 stops30h 28m

Baltimore/Washington

Tue 25/11

18:55-10:35

2 stops27h 40m

฿39,385

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 4/9

00:45-10:55

1 stop21h 10m

Washington, D.C. Dulles Intl

Tue 21/10

09:00-10:25

2 stops38h 25m

฿44,551

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 4/9

21:10-14:35

2 stops28h 25m

Washington, D.C. Dulles Intl

Wed 22/10

17:25-19:10

2 stops38h 45m

฿45,196

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 36 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.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 15 June 2025.
See what other customers who have flown with EVA Air, Korean Air and China Airlines from Chiang Mai to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

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
1,203 reviews
EVA Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

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
1,091 reviews
EVA Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

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
738 reviews
EVA Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

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
440 reviews
EVA Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

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
3,266 reviews
EVA Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

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 เดลต้า, with whom users have recently found tickets for as low as ฿24,858. However, be on the lookout for offers from แอร์แคนาดา and Asiana 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 - Washington, D.C. Reagan-National or Chiang Mai - Baltimore/Washington, 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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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