WAS - CNX

$381 Find Cheap Flights from Washington, D.C. to Chiang Mai - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% 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 round-trip
$890
Typical prices: $1,157-$1,525
Korean Air
Thu 1/25Wed 2/7
IAD - CNX • 1 stop
Cheapest one-way
$380
Typical prices: $620-$1,020
Multiple Airlines
Tue 11/27
IAD - CNX • 2 stops
Nonstop flights
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
Cheapest • 5% average savings
Most popular
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $922 (round-trip)
Shortest trip • 21h 49m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love 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 round-trip flight deals from Washington, D.C. to Chiang Mai

Mon, Jan 25 - Sun, Feb 7
Korean Air Logo
11:50 am - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 55m1 stop Incheon Intl
Korean Air Logo
12:20 am - 9:50 amCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
21h 30m1 stop Incheon Intl
$890Korean Air
Mon, Jan 25 - Sun, Feb 7
Korean Air Logo
11:50 am - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 55m1 stop Incheon Intl
Korean Air Logo
12:20 am - 5:33 pmCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
29h 13m2 stops Incheon Intl New York John F Kennedy Intl
$901Korean Air
Mon, Feb 1 - Mon, Mar 1
Delta Logo
6:00 am - 10:45 pmDCA  Washington, D.C. Reagan-National-CNX Chiang Mai
28h 45m2 stops Detroit Metropolitan Wayne County Incheon Intl
Delta Logo
12:20 am - 8:43 pmCNX  Chiang Mai-DCA Washington, D.C. Reagan-National
32h 23m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$901Delta
Sun, Jan 31 - Tue, Mar 2
Korean Air Logo
6:15 pm - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
40h 30m2 stops New York John F Kennedy Intl Incheon Intl
Korean Air Logo
12:20 am - 9:50 amCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
21h 30m1 stop Incheon Intl
$907Korean Air
Wed, Jan 20 - Wed, Mar 3
Multiple Airlines Logo
11:35 pm - 5:30 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
53h 55m2 stops Incheon Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
8:55 pm - 9:00 amCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
24h 05m1 stop Abu Dhabi Zayed Intl
$932Multiple Airlines
Wed, Jan 20 - Mon, Mar 1
Multiple Airlines Logo
11:35 pm - 5:30 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
53h 55m2 stops Incheon Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
8:55 pm - 9:00 amCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
24h 05m1 stop Abu Dhabi Zayed Intl
$932Multiple Airlines
Mon, Feb 1 - Sun, Feb 28
Delta Logo
7:00 am - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
27h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Delta Logo
12:20 am - 9:25 pmCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
33h 05m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$951Delta
Sun, Jan 31 - Mon, Mar 1
Delta Logo
7:37 pm - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
39h 08m2 stops Atlanta Hartsfield-Jackson Incheon Intl
Delta Logo
12:20 am - 11:50 pmCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
35h 30m2 stops Incheon Intl Seattle/Tacoma Intl
$956Delta
Fri, Apr 9 - Sat, Apr 24
EVA Air Logo
1:15 am - 10:25 amIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 10m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
11:35 am - 10:15 pmCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
21h 40m1 stop Taipei City Taiwan Taoyuan Intl
$1,208EVA Air
Wed, Nov 25 - Sun, Dec 6
EVA Air Logo
11:55 pm - 10:35 amIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 40m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
7:45 pm - 8:55 pmCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
37h 10m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,239EVA Air
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 round-trip flight from Washington, D.C. to Chiang Mai?

Round-trip flights from Washington, D.C. to Chiang Mai typically range from $1,157 to $1,525. The lowest price found in the past 5 days was $890, 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 $1,128 round-trip. Other Washington, D.C. to Chiang Mai routes average $1,259, 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, Tuesday 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 Monday is the most expensive, with prices 16% higher.

What’s 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 $991 round-trip.
•May ($1,670) and June ($1,566) 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.

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

Low season

April

Cheapest flight

$380
Beat the crowds with an average 69% drop in travelers.
The most popular month to fly with an average 68% increase in travelers.
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 round-trip 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.

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

    Three cabin classes are available on flights from Washington, D.C. to Chiang Mai:

    • Economy Class
    • Premium Economy Class
    • Business Class

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

    A nonstop flight from Washington, D.C. to Chiang Mai takes 00m, covering 8,438 miles.

  • 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?

    Round-trip flights from Washington, D.C. to Chiang Mai range from $1,157 to $1,525, with an average of $1,270 over the past 12 months. Anything below $1,157 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 $677, which is 11% below the typical average for this route.

  • What car rental options are available at Chiang Mai Airport (CNX)?

    Chiang Mai Airport (CNX) hosts 5 major car rental companies, with daily rates averaging $31 for economy cars. Top options include:

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

  • 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 23% on flights from Washington, D.C. to Chiang Mai. Tuesday is the cheapest departure day at $1,151 round-trip on average, while Monday is the most expensive at $1,478, a difference of $327.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover 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 at 21h 49m, compared with 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 12 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 Chiang Mai Night Bazaar, Tha Phae Gate and Chiang Mai International Exhibition and Convention Centre. 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 Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average $1,151, about $327 less than Monday fares (22% 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 $991 round-trip in that month - typically $679 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
    • 99 The Gallery Hotel
    • Bodhi Serene, Chiang Mai

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

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