Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Chiang Mai from $594

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Chiang Mai departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Chiang Mai

Cheap round-trip flights

Enter your travel dates to find the best prices.
Korean Air Logo
7:00 am - 10:55 pm
ONT
-
CNX
24h 55m
2 stops
Korean Air Logo
12:15 am - 5:17 pm
CNX
-
ONT
32h 02m
2 stops
$957Korean Air
Sun, Nov 8 - Wed, Nov 11
China Airlines Logo
12:10 am - 10:20 am
ONT
-
CNX
20h 10m
1 stop
China Airlines Logo
11:25 am - 5:50 pm
CNX
-
ONT
20h 25m
1 stop
$1,085China Airlines
Sun, Oct 18 - Fri, Oct 30
China Airlines Logo
10:50 pm - 10:25 am
ONT
-
CNX
20h 35m
1 stop
China Airlines Logo
11:25 am - 4:50 pm
CNX
-
ONT
20h 25m
1 stop
$1,088China Airlines
Thu, Nov 5 - Sun, Nov 15
China Airlines Logo
12:45 am - 10:20 am
ONT
-
CNX
19h 35m
1 stop
China Airlines Logo
11:20 am - 6:00 pm
CNX
-
ONT
20h 40m
1 stop
$1,092China Airlines
Mon, Aug 17 - Thu, Sep 17
China Airlines Logo
12:45 am - 10:20 am
ONT
-
CNX
19h 35m
1 stop
China Airlines Logo
11:20 am - 6:00 pm
CNX
-
ONT
20h 40m
1 stop
$1,093China Airlines
Thu, Aug 13 - Sat, Oct 3
China Airlines Logo
12:10 am - 10:20 am
ONT
-
CNX
20h 10m
1 stop
China Airlines Logo
11:25 am - 5:50 pm
CNX
-
ONT
20h 25m
1 stop
$1,095China Airlines
Sat, Oct 17 - Sat, Oct 31
China Airlines Logo
12:45 am - 10:20 am
ONT
-
CNX
19h 35m
1 stop
China Airlines Logo
11:20 am - 6:40 pm
CNX
-
ONT
21h 20m
1 stop
$1,100China Airlines
Fri, Jul 31 - Sun, Aug 16
China Airlines Logo
12:10 am - 10:20 am
ONT
-
CNX
20h 10m
1 stop
China Airlines Logo
11:20 am - 6:00 pm
CNX
-
ONT
20h 40m
1 stop
$1,113China Airlines
Mon, Oct 5 - Fri, Oct 23
China Airlines Logo
12:10 am - 10:20 am
ONT
-
CNX
20h 10m
1 stop
China Airlines Logo
11:20 am - 6:00 pm
CNX
-
ONT
20h 40m
1 stop
$1,118China Airlines
Tue, Oct 6 - Wed, Oct 21
China Airlines Logo
12:10 am - 10:20 am
ONT
-
CNX
20h 10m
1 stop
China Airlines Logo
11:20 am - 6:00 pm
CNX
-
ONT
20h 40m
1 stop
$1,119China Airlines
Tue, Oct 6 - Thu, Oct 15

China Airlines flights from Ontario to Chiang Mai

Our best China Airlines deals on Ontario to Chiang Mai flight tickets
China Airlines
Oct 18
ONT12:10 amOntario
20h 10m
1 stop
CNX10:20 amChiang Mai
Oct 30
CNX11:25 amChiang Mai
20h 25m
1 stop
ONT5:50 pmOntario
$1,085
China Airlines
Nov 5
ONT10:50 pmOntario
20h 35m
1 stop
CNX10:25 amChiang Mai
Nov 15
CNX11:25 amChiang Mai
20h 25m
1 stop
ONT4:50 pmOntario
$1,088
China Airlines
Aug 17
ONT12:45 amOntario
19h 35m
1 stop
CNX10:20 amChiang Mai
Sep 17
CNX11:20 amChiang Mai
20h 40m
1 stop
ONT6:00 pmOntario
$1,092

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Chiang Mai 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, momondo users made 832,500 searches. Data last updated May 20, 2026.
Use the filters below to find and compare flights from Ontario to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sun 11/8

7:00 am-10:55 pm

2 stops24h 55m

Chiang Mai

Wed 11/11

12:15 am-5:17 pm

2 stops32h 02m

$957

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sun 10/18

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

Fri 10/30

11:25 am-5:50 pm

1 stop20h 25m

$1,085

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Thu 11/5

10:50 pm-10:25 am

1 stop20h 35m

Chiang Mai

Sun 11/15

11:25 am-4:50 pm

1 stop20h 25m

$1,088
Quickest round-trip

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Mon 8/17

12:45 am-10:20 am

1 stop19h 35m

Chiang Mai

Thu 9/17

11:20 am-6:00 pm

1 stop20h 40m

$1,092

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Thu 8/13

12:45 am-10:20 am

1 stop19h 35m

Chiang Mai

Sat 10/3

11:20 am-6:00 pm

1 stop20h 40m

$1,093

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sat 10/17

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

Sat 10/31

11:25 am-5:50 pm

1 stop20h 25m

$1,095

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Fri 7/31

12:45 am-10:20 am

1 stop19h 35m

Chiang Mai

Sun 8/16

11:20 am-6:40 pm

1 stop21h 20m

$1,100

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Mon 10/5

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

Fri 10/23

11:20 am-6:00 pm

1 stop20h 40m

$1,113

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Tue 10/6

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

Wed 10/21

11:20 am-6:00 pm

1 stop20h 40m

$1,118

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Tue 10/6

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

Thu 10/15

11:20 am-6:00 pm

1 stop20h 40m

$1,119

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Chiang Mai from

How to get the cheapest flight ticket from Ontario to Chiang Mai

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Ontario to Chiang Mai flights?

You could potentially save up to 17% on your flight if you consider stops on a Ontario to Chiang Mai flight.

When to book flights from Ontario to Chiang Mai

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Chiang Mai according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Chiang Mai (ONT to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Chiang Mai

Fastest flight time

20h 35m

Direct flights

None
The fastest flight from Ontario to Chiang Mai takes 20h 35m
There are no direct flights from Ontario to Chiang Mai. There are no popular flight routes from Ontario to Chiang Mai.
Search flight deals

Frequently asked questions about flying from Ontario to Chiang Mai

  • How far is Ontario to Chiang Mai by plane?

    Ontario and Chiang Mai are 8055.9 mi apart from one another. Flights usually cover this in 20h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Chiang Mai Airport?

    Prices for flights from Ontario Airport to Chiang Mai Airport were last updated today.

  • How many operators does momondo search for flights from Ontario Airport to Chiang Mai Airport?

  • How old do you have to be to fly from Ontario Airport to Chiang Mai Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Chiang Mai Airport.

  • What documentation or ID do you need to fly to Chiang Mai Airport?

    The travel and health documents required for your trip to Chiang Mai Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chiang Mai Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Chiang Mai?

Best airlines flying from Ontario to Chiang Mai

Compare and see reviews for airlines that fly from Ontario to Chiang Mai with momondo
Airline
Rating
Free Cancellation
Price
China AirlinesPriceFrom $742Free CancellationRating
8.3
826 reviews
Search China Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Chiang Mai?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Chiang Mai. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Chiang Mai with flexible booking policies on momondo?

Flights from Ontario to Chiang Mai with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Chiang Mai?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Chiang Mai.

I’m not ready to book a flight from Ontario to Chiang Mai right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chiang Mai from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Chiang Mai trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 6/19
Fri 6/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Thailand