Find flights
When to book
Airlines
FAQs

Cheap flights from Chiang Mai to Washington, D.C. from ฿27,358

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
3 May — 10 May1
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 28 April 2025.

Round-trip from

฿36,043

One-way from

฿27,358
เดลต้า
  • เดลต้า
  • 18/9-16/10
  • 4 total stops
  • 56h 56m total
  • Chiang Mai to Washington, D.C.
Search Deals
China Airlines
  • China Airlines
  • 12/7
  • 2 total stops
  • 30h 30m 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 28 April 2025.

Thu 18/923:15CNX - IAD
2 stops28h 16mเดลต้า
Thu 16/1006:15IAD - CNX
2 stops28h 40mเดลต้า
Deal found 26/4฿36,043
Fri 6/611:20CNX - IAD
2 stops42h 39mMultiple Airlines
Wed 23/719:59IAD - CNX
2 stops27h 21mMultiple Airlines
Deal found 27/4฿39,016
Mon 15/923:05CNX - IAD
1 stop31h 25mAir China
Fri 17/1023:00IAD - CNX
1 stop35h 50mAir China
Deal found 26/4฿39,083
Sun 14/920:00CNX - IAD
2 stops54h 25mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Sun 12/1020:45IAD - CNX
2 stops30h 00mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 26/4฿41,955
Mon 15/920:00CNX - IAD
2 stops30h 40mQatar Airways
Thu 16/1021:00IAD - CNX
2 stops25h 20mQatar Airways
Deal found 26/4฿45,262
Wed 17/923:15CNX - IAD
1 stop22h 40mKorean Air
Thu 16/1006:15IAD - CNX
2 stops28h 40mKorean Air
Deal found 26/4฿47,266
Sun 14/914:35CNX - IAD
2 stops29h 05mEmirates
Fri 17/1010:55IAD - CNX
2 stops45h 15mEmirates
Deal found 26/4฿51,542
Wed 17/921:10CNX - IAD
3 stops29h 20mออสเตรียนแอร์ไลน์
Wed 15/1017:25IAD - CNX
2 stops38h 45mออสเตรียนแอร์ไลน์
Deal found 26/4฿61,129
Thu 5/600:45CNX - IAD
2 stops31h 35mAsiana Airlines
Wed 23/717:45IAD - CNX
2 stops42h 55mAsiana Airlines
Deal found 27/4฿90,725

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 28 April 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 18/9

23:15-16:31

2 stops28h 16m

Washington, D.C. Dulles Intl

Thu 16/10

06:15-21:55

2 stops28h 40m

฿36,043

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 6/6

11:20-18:59

2 stops42h 39m

Washington, D.C. Dulles Intl

Wed 23/7

19:59-10:20

2 stops27h 21m

฿39,016

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 15/9

23:05-19:30

1 stop31h 25m

Washington, D.C. Dulles Intl

Fri 17/10

23:00-21:50

1 stop35h 50m

฿39,083

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sun 14/9

20:00-15:25

2 stops54h 25m

Washington, D.C. Dulles Intl

Tue 14/10

20:45-13:45

2 stops30h 00m

฿41,955

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 15/9

20:00-15:40

2 stops30h 40m

Washington, D.C. Dulles Intl

Mon 13/10

21:00-11:15

2 stops27h 15m

฿45,262

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/9

23:15-10:55

1 stop22h 40m

Washington, D.C. Dulles Intl

Thu 16/10

06:15-21:55

2 stops28h 40m

฿47,266

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sun 14/9

14:35-08:40

2 stops29h 05m

Washington, D.C. Dulles Intl

Fri 17/10

10:55-19:10

2 stops45h 15m

฿51,542

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/9

21:10-15:30

3 stops29h 20m

Washington, D.C. Dulles Intl

Wed 15/10

17:25-19:10

2 stops38h 45m

฿61,129

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 5/6

00:45-21:20

2 stops31h 35m

Washington, D.C. Dulles Intl

Wed 23/7

17:45-23:40

2 stops42h 55m

฿90,725

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 12/7

11:20-06:50

2 stops30h 30m

฿27,358

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 16 results
1
2

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 28 April 2025.
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,063 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very Good
729 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very Good
443 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Emirates
8.0
Very Good
3,213 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
เดลต้า
8.0
Very Good
7,927 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.. 1 airline 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 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 - Baltimore/Washington, Chiang Mai - Washington, D.C. Reagan-National or Chiang Mai - Washington, D.C. Dulles Intl, 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 Reagan-National flights
Chiang Mai to Dulles Intl flights

Top airline flying from Chiang Mai to Washington, D.C.

Discover the top airline that operate flights from Chiang Mai to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 28 April 2025.
AirlineCheapestAverageFlexibilityOn-time
เดลต้าCheapest฿36,860Average฿50,068FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights