WAS - CNX

$401 Find Cheap Flights from Washington, D.C. to Chiang Mai - Compare and Save

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Everything you should know

Cheapest round-trip
$851
Typical prices: $1,128-$1,456
Korean Air, Etihad Airways
Sun 11/4Sat 11/10
IAD - CNX • 1 stop
Cheapest one-way
$401
Typical prices: $588-$992
Multiple Airlines
Tue 11/27
IAD - CNX • 2 stops
Nonstop 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.
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Top routes
DCA - CNX
Cheapest • 5% average savings
IAD - CNX
Most popular
Insights
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When to travel
September
Cheapest • 11% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Beijing Capital (PEK)
Cheapest • Avg $922 (round-trip)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 21h 50m (one-way)
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We hope you love your trip to Chiang Mai!
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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

Wed, Nov 4 - Tue, Nov 10
Multiple Airlines Logo
11:50 am - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 55m1 stop Incheon Intl
Multiple Airlines Logo
9:10 am - 9:05 amCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
35h 55m1 stop Abu Dhabi Zayed Intl
$851Multiple Airlines
Mon, Nov 2 - Mon, Nov 9
Multiple Airlines Logo
11:50 am - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 55m1 stop Incheon Intl
Multiple Airlines Logo
9:10 am - 9:05 amCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
35h 55m1 stop Abu Dhabi Zayed Intl
$872Multiple Airlines
Sun, Nov 8 - Mon, Nov 23
Multiple Airlines Logo
11:50 am - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
22h 55m1 stop Incheon Intl
Multiple Airlines Logo
9:10 am - 9:05 amCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
35h 55m1 stop Abu Dhabi Zayed Intl
$880Multiple Airlines
Wed, Nov 4 - Tue, Nov 10
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
$881Korean Air
Mon, Jan 18 - Tue, Mar 9
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
$911Korean Air
Mon, Jan 18 - Tue, Mar 2
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
$911Korean Air
Sun, Nov 8 - Sun, Nov 22
Delta Logo
6:00 am - 10:45 pmDCA  Washington, D.C. Reagan-National-CNX Chiang Mai
28h 45m2 stops Atlanta Hartsfield-Jackson Incheon Intl
Delta Logo
12:20 am - 9:47 pmCNX  Chiang Mai-DCA Washington, D.C. Reagan-National
33h 27m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$922Delta
Tue, Feb 2 - Wed, Feb 10
Delta Logo
6:30 pm - 10:45 pmIAD  Washington, D.C. Dulles Intl-CNX Chiang Mai
40h 15m2 stops New York John F Kennedy Intl Incheon Intl
Delta Logo
12:20 am - 9:50 amCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
21h 30m1 stop Incheon Intl
$962Delta
Sat, Jan 9 - Wed, Mar 10
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
11:50 am - 8:55 pmCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
21h 05m1 stop Taipei City Taiwan Taoyuan Intl
$1,051EVA Air
Mon, Jan 11 - Wed, Mar 10
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
11:50 am - 8:55 pmCNX  Chiang Mai-IAD Washington, D.C. Dulles Intl
21h 05m1 stop Taipei City Taiwan Taoyuan Intl
$1,081EVA 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.

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 $1,253, 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 9% cheaper than the average day, while Wednesday is the most expensive, with prices 12% higher.

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

•September is the cheapest month to fly from Washington, D.C. to Chiang Mai at $1,101 round-trip.
•June ($1,696) and May ($1,634) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 54% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Low season

April

Cheapest flight

$401
Beat the crowds with an average 71% drop in travelers.
The most popular month to fly with an average 259% 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?

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

    • 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 $1,128 to $1,456, with an average of $1,235 over the past 12 months. Anything below $1,128 counts as a good deal.

  • Have flight prices from Washington, D.C. to Chiang Mai changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $851 to $7,458. That means the highest observed fare was about 9x higher than the lowest one.

  • 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 $502, which is 28% 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 starting from around $12 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Hertz
    • Yesaway

  • 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) - 51% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) - 38% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) - 10% 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 20% on flights from Washington, D.C. to Chiang Mai. Tuesday is the cheapest departure day at $1,128 round-trip on average, while Wednesday is the most expensive at $1,394, a difference of $266.

    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 50m, compared with 22h 22m 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 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 Wednesday. On this route, Tuesday flights average $1,128, about $266 less than Wednesday fares (19% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Washington, D.C. to Chiang Mai trip for September. Fares historically average $1,101 round-trip in that month - typically $595 less than the most expensive month, which is June (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.

    • Le Naview @Prasingh
    • Bodhi Serene, Chiang Mai
    • The Inside House

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

Car rentals in Chiang Mai
Hotels in Chiang Mai
Vacations in Chiang Mai