ONT - CNX

$382 Find Cheap Flights from Ontario to Chiang Mai - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$739
Typical prices: $989-$1,244
Korean Air
Fri 11/30Thu 12/6
ONT - CNX • 2 stops
Cheapest one-way
$382
Typical prices: $523-$1,016
Korean Air
Sat 2/10
ONT - CNX • 2 stops
Nonstop flights
There are currently no direct flights between Ontario and Chiang Mai. You'll need to take a connecting flight to reach the destination.
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When to travel
Cheapest • 23% price drop
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Cheap Flights from Ontario to Chiang Mai (ONT-CNX)

 

Cheap flights from Ontario to Chiang Mai with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Mon, Nov 30 - Sun, Dec 6
Korean Air Logo
7:00 am - 10:45 pmONT  Ontario-CNX Chiang Mai
24h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
12:20 am - 5:15 pmCNX  Chiang Mai-ONT Ontario
31h 55m2 stops Incheon Intl Seattle/Tacoma Intl
$739Korean Air
Tue, Jan 26 - Mon, Feb 8
Korean Air Logo
7:00 am - 10:45 pmONT  Ontario-CNX Chiang Mai
24h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
12:20 am - 1:57 pmCNX  Chiang Mai-ONT Ontario
28h 37m2 stops Incheon Intl Seattle/Tacoma Intl
$786Korean Air
Mon, Jan 25 - Mon, Feb 8
Korean Air Logo
7:00 am - 10:45 pmONT  Ontario-CNX Chiang Mai
24h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
12:20 am - 10:43 pmCNX  Chiang Mai-ONT Ontario
37h 23m2 stops Incheon Intl Seattle/Tacoma Intl
$786Korean Air
Wed, Jan 27 - Mon, Feb 8
Korean Air Logo
7:00 am - 10:45 pmONT  Ontario-CNX Chiang Mai
24h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
12:20 am - 1:57 pmCNX  Chiang Mai-ONT Ontario
28h 37m2 stops Incheon Intl Seattle/Tacoma Intl
$786Korean Air
Wed, Jan 27 - Tue, Feb 9
Korean Air Logo
7:00 am - 10:45 pmONT  Ontario-CNX Chiang Mai
24h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
12:20 am - 1:57 pmCNX  Chiang Mai-ONT Ontario
28h 37m2 stops Incheon Intl Seattle/Tacoma Intl
$786Korean Air
Mon, Jan 25 - Tue, Feb 9
Korean Air Logo
7:00 am - 10:45 pmONT  Ontario-CNX Chiang Mai
24h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
12:20 am - 10:43 pmCNX  Chiang Mai-ONT Ontario
37h 23m2 stops Incheon Intl Seattle/Tacoma Intl
$786Korean Air
Tue, Jan 26 - Tue, Feb 9
Korean Air Logo
7:00 am - 10:45 pmONT  Ontario-CNX Chiang Mai
24h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
12:20 am - 10:43 pmCNX  Chiang Mai-ONT Ontario
37h 23m2 stops Incheon Intl Seattle/Tacoma Intl
$786Korean Air
Thu, Oct 29 - Wed, Nov 4
Delta Logo
6:00 am - 10:45 pmONT  Ontario-CNX Chiang Mai
26h 45m2 stops Salt Lake City Incheon Intl
Delta Logo
12:20 am - 5:12 pmCNX  Chiang Mai-ONT Ontario
31h 52m2 stops Incheon Intl Seattle/Tacoma Intl
$792Delta
Mon, Mar 29 - Fri, Apr 16
China Airlines Logo
12:10 am - 10:20 amONT  Ontario-CNX Chiang Mai
20h 10m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
11:20 am - 6:00 pmCNX  Chiang Mai-ONT Ontario
20h 40m1 stop Taipei City Taiwan Taoyuan Intl
$1,032China Airlines
Tue, Feb 16 - Wed, Mar 10
China Airlines Logo
10:50 pm - 10:25 amONT  Ontario-CNX Chiang Mai
20h 35m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
11:25 am - 5:05 pmCNX  Chiang Mai-ONT Ontario
20h 40m1 stop Taipei City Taiwan Taoyuan Intl
$1,061China Airlines

Price, demand and travel trends for Ontario 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 Ontario to Chiang Mai?

Round-trip flights from Ontario to Chiang Mai typically range from $989 to $1,244. The lowest price found in the past 5 days was $739, on Korean Air.

What's the cheapest day of the week to fly from Ontario 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 Ontario to Chiang Mai. It’s 34% cheaper than the average day, while Wednesday is the most expensive, with prices 24% higher.

Key details for Ontario to Chiang Mai flights

Cheapest flight

$382
The most popular month to fly with an average 17% increase in travelers.
One-way flight from Ontario to Chiang Mai

When to book flights from Ontario to Chiang Mai

Are your dates flexible? Find out the best times to travel from Ontario 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 Ontario 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 Ontario to Chiang Mai?

    Only Economy Class is available on flights from Ontario to Chiang Mai.

  • How long is a flight from Ontario to Chiang Mai?

    A nonstop flight from Ontario to Chiang Mai takes 00m, covering 8,060 miles.

  • Do I need a passport to fly from Ontario 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 Ontario to Chiang Mai flight?

    Round-trip flights from Ontario to Chiang Mai range from $989 to $1,244, with an average of $1,119 over the past 12 months. Anything below $989 counts as a good deal.

  • How are flight prices from Ontario to Chiang Mai looking right now?

    One-way fares from Ontario to Chiang Mai are currently lower than usual. Average one-way flight prices are about $450, which is 30% 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
    • Yesaway
    • ASAP Car Rentals

  • Which airports can I use when flying from Ontario to Chiang Mai?

    Flights from Ontario to Chiang Mai usually depart from Ontario (ONT) and arrive at Chiang Mai (CNX).

  • Which airports do connecting flights from Ontario to Chiang Mai pass through?

    Most connecting flights from Ontario to Chiang Mai pass through Taipei City Taiwan Taoyuan Intl (TPE), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Ontario to Chiang Mai?

    Yes. Flexible dates can save you up to 47% on flights from Ontario to Chiang Mai. Sunday is the cheapest departure day at $742 round-trip on average, while Wednesday is the most expensive at $1,389, a difference of $647.

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

  • What is the time difference between Ontario and Chiang Mai?

    Chiang Mai is 14 hours ahead of Ontario (Indochina Time vs Pacific 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 Ontario 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 Wednesday. On this route, Sunday flights average $742, about $647 less than Wednesday fares (47% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Chiang Mai trip for November. Fares historically average $866 round-trip in that month - typically $1,416 less than the most expensive month, which is December (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
    • De Lanna Hotel

More options for your flight from Ontario to Chiang Mai

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