฿15,782 Find Cheap Flights to Ontario – Compare and Save

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Best Ontario Flight Deals

Cheapest return prices found by our users on KAYAK in the last 5 days
Toronto
Toronto1 stop฿31,762
Ottawa
Ottawa2 stops฿38,437
Toronto
Toronto1 stop฿31,762
Ottawa
Ottawa2 stops฿38,437
Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends into flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Thailand to Ontario?

The cheapest month for flights from Thailand to Ontario is November, when tickets cost ฿17,722 (return) on average. On the other hand, the most expensive months are April and March, when the average cost of round-trip tickets is ฿32,979 and ฿26,731 respectively.

How far in advance should I book a flight from Thailand to Ontario?

To get a below-average price on a flight from Thailand to Ontario, you should book around 5 weeks before departure, which saves you about 14% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low season

January

Cheapest flight

฿15,782
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from Bangkok Suvarnabhumi Airport to Toronto Pearson Airport

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Thailand to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Thailand to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Thailand to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Thailand to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Thailand to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Thailand to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Thailand to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Thailand to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Reviews of the top 4 airlines flying to Ontario

 
Need help choosing which airline to fly with from Thailand to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1221 reviews
8.3Comfort
8.5Boarding
8.2Entertainment
8.7Crew
8.1Food
Airline reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

8.0 ExcellentGary, Apr 2026
Read more Korean Air reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

This was an amazing flight. The crew was great. The service was great. The food provided was great.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Food choice could be better, plus the crew can walk around and offer snacks and drinks. Also the air-conditioning onboard blows high speed, and very cold makes the trip uncomfortable.

It would be better if flight crew can clearly communicate in english. But they are kind and accommodating. Food is good, especially the sandwiches on the self-serving snack trays. They are better than the ones served. Boarding was organized.

Not accommodating ground staff On board slow service Crew members not very friendly

Going through security a third time to get on the next flight was again utterly ridiculous and unnecessary. We were in a International secure area once again and as far as I'm concerned should not have been put through the gears for absolutely no reason. The United States can get all the information they need from the travel itinerary, there was no need to be forced out of a secure area to personally interview everyone on a connecting flight to find out their US immigration status.

Flight arrived early, fantastic, since it is short flight, no food being served

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

Great! Internet is below its competition. Poor connectivity quality and speed.

It was a good experience except that the flight has been rescheduled, bit disappointed but it happens.

The flight attendants were very helpful, efficient and courteous in helping everyone!

The experience was very good. A little disappointed for the delays and the screen. The touch screen was annoying for being so irresponsive. Not a lot of good movie choices for me. The service is great. Food could have more choices though.

In economy, very cramped. Once the front seat was reclined it was almost impossible to get in and out of our seat. The personnel was excellent.

great experience. better than all other airlines flying this route.

The staff were so friendly and accommodating. The food was great. Lots of movies to choose from as well as tv shows. Highly recommend.

Better. I took an aisle seat this time. Although the overheard compartment above the seat ahead of me kept opening up during flight.

I have a Peanut Allergy and the Steward staff were very accommodating in ensuring my safety as my allergy is life threatening. Very professional and so vested in their profession.

My seat was sold off to someone else. Had to wait 9 hours to catch the next filght. Definitely will never use Cathay Pacific again. Bad, very bad airline. will comment on google reviews too.

Flight delay due to staff shortage. No snack or drinks served. Toilets had water collecting on the floor.

After waiting for hours of delays, the flight was canceled. We missed our flight to Iceland from Toronto. We tried for hours to get a reasonable replacement flight, but it was the next day before we could even schedule another flight days later. We had to cancel our anniversary trip because we could not get to Iceland on time to keep our reservations. We won’t be flying Air Canada again as they just don’t have the infrastructure to deal with cancellations.

Flight was delayed due to crew/co-pilot change over delay and Pearson scheduling issue. Flight didn't leave until 20:05 which was 15 minutes before it was supposed to land in YYZ.

Because you didn't have the tarmac clear and then had to unboard a plane I missed my connecting flight to CLE. Cost me a day ... a 30 dollar hotel hamburger ... then the next day THAT flight was an hour late to arrive ...

First of all the flight departing from Deer Lake was delayed for 4 hours due to a problem with the plane. Secondly, I am 6ft 2 inches tall, which is not that tall nowadays, but I had no leg room despite having nothing under the seat in front of me. When the person in front of me reclined his seat just a little bit I could not lower my tray all of the way; it rested on my knee not in a horizontal position. Thirdly, I am tired of Air Canada not reinforcing carry on baggage sizes. On the outgoing flight from Toronto to Deer Lake we had trouble finding space in the overhead bins. Some people were putting luggage in them that were definitely larger than carry on size. Airlines should have all carry on luggage checked (using those gadgets designed for that) before one enters security perhaps at the baggage checking counters. Having it there won’t delay boarding and will put the onus on people to follow the luggage size limits.

The only problem that I have is if you have questions about your flight ✈️ there's no one to communicate with when you call 📱.

Contacting Canada air was a disaster. I will never fly Canada air again. If you called their 1-800 number, you were told that you might have to stay on the line for two hours. That is a disgrace. You should be able to speak to a human within the first 10-15 minutes. I went over to a cluster of phones and a lot of people were on hold with Canada air for 2-3 hours. This is why I will never fly Canada air again.

Landing in Toronto, special access in Toronto not well co-ordinated !!

As seems to happen every flight from Toronto to Ottawa we were delayed twice. We try to avoid Toronto when possible.. Denver to Toronto was fine.

Terrible service. Staff kept our passports and were too slow to check us in, web check in was not working and as a result of slow as molasses service we missed our flight and had to be rebooked at 2 am, I was charged for an extra drink and told I’d be refunded. Never received the refund. Very uncomfortable seats, staff are rude and dismissive. Will not be flying with avianca again.

More options for your flight to Ontario

Complete your trip to Ontario with a hotel stay or car hire