Search results
On average, a flight to Ontario costs $139. The cheapest price found on KAYAK in the last 2 weeks cost $17 and departed from Las Vegas. The most popular routes on KAYAK are San Francisco to Ontario which costs $118 on average, and Denver to Ontario, which costs $128 on average. See prices from:
The cheapest ticket to Ontario from the United States found in the last 72 hours was $26 one-way, and $92 round-trip. The most popular route is New York LaGuardia to Toronto Pearson Intl and the cheapest round-trip airline ticket found on this route in the last 72 hours was $199.
Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight.
Use Google Flights to find cheap departing flights to Ontario and to track prices for specific travel dates for your next getaway.
Find flights to Canada from $29. Fly from the United States on Flair Airlines, WestJet and more. Search for Canada flights on KAYAK now to find the best deal.
We've compared plane tickets from all major online travel agents and airlines flying to Ontario to find the cheapest flights. And with us, there are no hidden fees – what you see is what you pay. Flex your dates to secure the best air ticket price for your Ontario flight.
We've compared ticket prices from all top online travel agents and airlines flying to Ontario International Airport to get you the cheapest flights. With Skyscanner, there are no hidden fees – the price you see is the price you pay.
