2,692﷼+ Cheap flights to Ontario
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Ontario in 2026
Cheapest flights to OntarioExplore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on October 10, 2026.
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on October 10, 2026.
Best flights to OntarioDiscover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated October 10, 2026.
Discover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated October 10, 2026.
Last-minute flights to OntarioDiscover last-minute flight deals to Ontario. Data last updated October 10, 2026 and is based on user searches.
Discover last-minute flight deals to Ontario. Data last updated October 10, 2026 and is based on user searches.
One-way flights to OntarioSearch for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated October 10, 2026.
Search for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated October 10, 2026.
Find flight deals to Ontario
Find the latest flights to Ontario in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 7,457,451 searches and data was last updated on October 10, 2026.
Cheapflights Fare Finder
Use the filters below to find and compare flights to Ontario that are best for you.
Fly from
Route
Depart
Return
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Mon 10/26
5:40 pm-4:38 pm
3 stops32h 58m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Fri 11/6
10:55 pm-4:38 pm
3 stops28h 43m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Thu 11/5
6:00 am-7:08 pm
2 stops24h 08m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Sat 11/7
10:10 am-5:05 pm
3 stops41h 55m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Fri 11/6
7:55 am-6:17 pm
1 stop21h 22m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Sun 11/8
7:55 am-6:17 pm
1 stop21h 22m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Mon 10/26
7:55 am-11:42 pm
1 stop25h 47m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Mon 1/25
7:55 am-10:41 pm
1 stop25h 46m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Wed 12/16
1:30 am-1:30 pm
1 stop23h 00m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
DohaOntario
DOH Doha Hamad Intl - ONT Ontario
DOHONT
Doha Hamad Intl
Wed 11/4
1:50 am-6:42 pm
1 stop27h 52m
Ontario
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
Best time to book a flight to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Ontario
Rainfall in Ontario by month
In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.
Temperature in Ontario by month
If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).
FAQs about flying to Ontario
Browse thousands of different options on Cheapflights for your next trip
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Some of the lowest fares we’ve come across for flights from Ontario.
Other flight destinations closest to Ontario
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Complete your trip
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Most traveled routes by our users
Popular United States flight routes
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Fly your favourite airline to Ontario
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Fly with Cheapflights
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How does Cheapflights help users find flights to Ontario?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets to Ontario?
Cheapflights simply makes it quick and affordable to book flights to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights to Ontario with no change fees?
Need flexible booking options for your flight to Ontario ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights to Ontario become cheaper?
Not ready to book yet? You can track prices for flights to Ontario on Cheapflights with our Price Alerts feature and get notified when better prices are available.