WAS - CNX

฿12,994 Find Cheap Flights from Washington, D.C. to Chiang Mai – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 30% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return flight
฿30,037
Typical prices: ฿38,064-฿50,054
Korean Air
Thu 25/1Wed 7/2
IAD - CNX • 1 stop
Cheapest one-way flight
฿12,994
Typical prices: ฿20,526-฿34,649
Multiple Airlines
Tue 27/11
IAD - CNX • 2 stops
Direct flights
Not available
There are currently no direct flights between Washington, D.C. and Chiang Mai. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Top routes
DCA - CNX
Cheapest • 5% average savings
IAD - CNX
Most popular
Insights
Insights
When to travel
August
Cheapest • 20% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Beijing Capital (PEK)
Cheapest • Avg ฿31,116 (return)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 21h 49m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Chiang Mai (WAS-CNX)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Washington, D.C. to Chiang Mai

Mon 25 Jan - Sun 7 Feb
Korean Air Logo
11:50 - 22:45IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 55m1 stop Incheon Intl
Korean Air Logo
00:20 - 09:50CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
21h 30m1 stop Incheon Intl
฿30,037Korean Air
3+ days ago
Mon 25 Jan - Sun 7 Feb
Korean Air Logo
11:50 - 22:45IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 55m1 stop Incheon Intl
Korean Air Logo
00:20 - 17:33CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
29h 13m2 stops Incheon Intl New York John F Kennedy Intl
฿30,408Korean Air
3+ days ago
Mon 25 Jan - Sun 7 Feb
Korean Air Logo
18:15 - 22:45IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
40h 30m2 stops New York John F Kennedy Intl Incheon Intl
Korean Air Logo
00:20 - 17:33CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
29h 13m2 stops Incheon Intl New York John F Kennedy Intl
฿30,780Korean Air
3+ days ago
Mon 1 Feb - Tue 9 Feb
เดลต้า Logo
07:00 - 22:45IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
27h 45m2 stops Seattle/Tacoma Intl Incheon Intl
เดลต้า Logo
00:20 - 09:50CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
21h 30m1 stop Incheon Intl
฿31,758เดลต้า
20 hours ago
Mon 1 Feb - Tue 9 Feb
เดลต้า Logo
06:00 - 22:45IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
28h 45m2 stops Atlanta Hartsfield-Jackson Incheon Intl
เดลต้า Logo
00:20 - 12:03CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
23h 43m2 stops Incheon Intl Atlanta Hartsfield-Jackson
฿32,096เดลต้า
20 hours ago
Tue 24 Nov - Thu 3 Dec
Air China Logo
22:00 - 21:50IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
35h 50m1 stop Beijing Capital
Air China Logo
23:05 - 18:30CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
31h 25m1 stop Beijing Capital
฿33,041Air China
3+ days ago
Wed 17 Feb - Sat 27 Feb
เดลต้า Logo
11:50 - 22:45IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 55m1 stop Incheon Intl
เดลต้า Logo
00:20 - 23:51CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
35h 31m2 stops Incheon Intl Seattle/Tacoma Intl
฿33,142เดลต้า
3+ days ago
Wed 17 Feb - Sat 27 Feb
เดลต้า Logo
06:00 - 22:45IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
28h 45m2 stops Atlanta Hartsfield-Jackson Incheon Intl
เดลต้า Logo
00:20 - 23:51CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
35h 31m2 stops Incheon Intl Seattle/Tacoma Intl
฿33,277เดลต้า
3+ days ago
Thu 21 Jan - Mon 22 Feb
เดลต้า Logo
18:30 - 22:45IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
40h 15m2 stops New York John F Kennedy Intl Incheon Intl
เดลต้า Logo
00:20 - 18:26CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
30h 06m2 stops Incheon Intl Atlanta Hartsfield-Jackson
฿33,480เดลต้า
3+ days ago
Fri 27 Nov - Mon 7 Dec
Air China Logo
22:00 - 21:50IAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
35h 50m1 stop Beijing Capital
Air China Logo
23:05 - 18:30CNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
31h 25m1 stop Beijing Capital
฿33,885Air China
3+ days ago
Booking Insights

Price, demand, and travel trends for Washington, D.C. to Chiang Mai flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Washington, D.C. to Chiang Mai?

Return flights from Washington, D.C. to Chiang Mai typically range from ฿38,064 to ฿50,054. The lowest price found in the past 5 days was ฿30,037 on Korean Air.

What is the cheapest Washington, D.C. to Chiang Mai flight route?

Washington, D.C. Reagan-National Airport (DCA) to Chiang Mai (CNX) is the cheapest Washington, D.C. to Chiang Mai route, averaging ฿38,064 return. Other Washington, D.C. to Chiang Mai routes average ฿42,486, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Chiang Mai?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Washington, D.C. to Chiang Mai. It's 10% cheaper than the average day, while Friday is the most expensive, with prices 21% higher.

What is the cheapest month to fly from Washington, D.C. to Chiang Mai?

•August is the cheapest month to fly from Washington, D.C. to Chiang Mai at ฿33,446 return.
•May (฿56,362) and June (฿51,637) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 68% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Washington, D.C. to Chiang Mai flights

Low season

April

Cheapest flight

฿12,994
Beat the crowds with an average 67% drop in travellers.
The most popular month to fly with an average 128% increase in travellers.
One-way flight from Washington, D.C. Dulles Intl Airport to Chiang Mai

When to book flights from Washington, D.C. to Chiang Mai

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Washington, D.C. to Chiang Mai flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Washington, D.C. to Chiang Mai?

    Only Economy class is available on flights from Washington, D.C. to Chiang Mai.

  • How long is a flight from Washington, D.C. to Chiang Mai?

    A direct flight from Washington, D.C. to Chiang Mai takes 00m, covering 21,854 km.

  • Do I need a passport to fly from Washington, D.C. to Chiang Mai?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Washington, D.C. to Chiang Mai flight?

    Return flights from Washington, D.C. to Chiang Mai range from ฿38,064 to ฿50,054, with an average of ฿41,620 over the past 12 months. Anything below ฿38,064 counts as a good deal.

  • How are flight prices from Washington, D.C. to Chiang Mai looking right now?

    One-way fares from Washington, D.C. to Chiang Mai are currently lower than usual. Average one-way flight prices are about ฿15,022, which is 40% below the typical average for this route.

  • Which car hire options are available at Chiang Mai Airport (CNX)?

    Chiang Mai Airport (CNX) hosts 5 major car rental companies, with daily rates starting from around ฿420 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Yesaway
    • ASAP Car Rentals

  • Which airports can I use when flying from Washington, D.C. to Chiang Mai?

    Flights from Washington, D.C. to Chiang Mai may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Chiang Mai (CNX).

  • Which airports do connecting flights from Washington, D.C. to Chiang Mai pass through?

    One-stop flights from Washington, D.C. to Chiang Mai most commonly connect through:

    • Incheon Intl (ICN) – 49% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) – 42% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) – 8% of one-stop connections
    • Beijing Capital (PEK) – 1% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. to Chiang Mai?

    Yes. Flexible dates can save you up to 26% on flights from Washington, D.C. to Chiang Mai. Sunday is the cheapest departure day at ฿37,800 return on average, while Friday is the most expensive at ฿50,489, a difference of ฿12,690.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different stopover airport from Washington, D.C. to Chiang Mai?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time of 21h 49m, compared to 22h 19m via Incheon Intl (ICN) and 31h 48m via Abu Dhabi Zayed Intl (AUH).

  • What is the time difference between Washington, D.C. and Chiang Mai?

    Chiang Mai is 11 hours ahead of Washington, D.C. (Indochina Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Chiang Mai?

    Some of the most popular sights in Chiang Mai are Tha Phae Gate, Chang Puak Gate, and Chiang Mai Gate. These are among the most viewed places in Chiang Mai on KAYAK.

Your guide to booking Washington, D.C. to Chiang Mai flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Friday. On this route, Sunday flights average ฿37,800, which is about ฿12,690 less than Friday fares (25% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Washington, D.C. to Chiang Mai trip for August. Fares historically average ฿33,446 return in that month – typically ฿22,916 less than the most expensive month, which is May (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Chiang Mai Airport.

    • De Lanna Hotel
    • Bodhi Serene, Chiang Mai
    • Le Naview @Prasingh

More options for your flight from Washington, D.C. to Chiang Mai

Complete your trip to Chiang Mai with a hotel stay or car hire

Car rentals in Chiang Mai
Hotels in Chiang Mai