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Cheap Flights from Toronto to Ontario International

Compare Toronto to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Toronto to Ontario International

Looking for a cheap last-minute deal or the best return flight from Toronto to Ontario International Airport? If you want to travel next month, return fares start from $633. Find the lowest prices on one-way and return tickets right here.
Ontario.$633 per passenger.Departing Sat, 2 May, returning Fri, 8 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Sat, 2 May, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Fri, 8 May, arriving in Toronto Pearson International.Price includes taxes and charges.From $633, select.
Ontario.$653 per passenger.Departing Tue, 9 Jun, returning Fri, 12 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Tue, 9 Jun, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Fri, 12 Jun, arriving in Toronto Pearson International.Price includes taxes and charges.From $653, select.
Ontario.$675 per passenger.Departing Thu, 28 May, returning Mon, 1 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Thu, 28 May, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Mon, 1 Jun, arriving in Toronto Pearson International.Price includes taxes and charges.From $675, select.
Ontario.$675 per passenger.Departing Tue, 13 Oct, returning Sat, 17 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Tue, 13 Oct, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Sat, 17 Oct, arriving in Toronto Pearson International.Price includes taxes and charges.From $675, select.
Ontario.$677 per passenger.Departing Thu, 13 Aug, returning Sun, 16 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Thu, 13 Aug, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Sun, 16 Aug, arriving in Toronto Pearson International.Price includes taxes and charges.From $677, select.
Ontario.$678 per passenger.Departing Thu, 9 Jul, returning Mon, 13 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Thu, 9 Jul, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Mon, 13 Jul, arriving in Toronto Pearson International.Price includes taxes and charges.From $678, select.
Ontario.$678 per passenger.Departing Thu, 30 Apr, returning Wed, 6 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Thu, 30 Apr, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Wed, 6 May, arriving in Toronto Pearson International.Price includes taxes and charges.From $678, select.
Ontario.$683 per passenger.Departing Sat, 14 Nov, returning Mon, 14 Dec.Return flight with United.Outbound indirect flight with United, departs from Toronto Pearson International on Sat, 14 Nov, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Mon, 14 Dec, arriving in Toronto Pearson International.Price includes taxes and charges.From $683, select.
Ontario.$729 per passenger.Departing Sat, 21 Nov, returning Sat, 28 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Sat, 21 Nov, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Sat, 28 Nov, arriving in Toronto Pearson International.Price includes taxes and charges.From $729, select.
Ontario.$733 per passenger.Departing Thu, 29 Oct, returning Tue, 3 Nov.Return flight with United.Outbound indirect flight with United, departs from Toronto Pearson International on Thu, 29 Oct, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Tue, 3 Nov, arriving in Toronto Pearson International.Price includes taxes and charges.From $733, select.
Ontario.$737 per passenger.Departing Thu, 25 Jun, returning Thu, 2 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Thu, 25 Jun, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Thu, 2 Jul, arriving in Toronto Pearson International.Price includes taxes and charges.From $737, select.
Ontario.$745 per passenger.Departing Sat, 30 Jan, returning Sun, 7 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Toronto Pearson International on Sat, 30 Jan, arriving in Ontario International.Inbound indirect flight with Air Canada, departs from Ontario International on Sun, 7 Feb, arriving in Toronto Pearson International.Price includes taxes and charges.From $745, select.
Ontario.$765 per passenger.Departing Tue, 22 Sep, returning Tue, 29 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Toronto Pearson International on Tue, 22 Sep, arriving in Ontario International.Inbound indirect flight with Air Canada, departs from Ontario International on Tue, 29 Sep, arriving in Toronto Pearson International.Price includes taxes and charges.From $765, select.
Ontario.$768 per passenger.Departing Wed, 16 Dec, returning Tue, 22 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Toronto Pearson International on Wed, 16 Dec, arriving in Ontario International.Inbound indirect flight with Air Canada, departs from Ontario International on Tue, 22 Dec, arriving in Toronto Pearson International.Price includes taxes and charges.From $768, select.
Ontario.$773 per passenger.Departing Tue, 29 Sep, returning Sun, 4 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Toronto Pearson International on Tue, 29 Sep, arriving in Ontario International.Inbound indirect flight with Air Canada, departs from Ontario International on Sun, 4 Oct, arriving in Toronto Pearson International.Price includes taxes and charges.From $773, select.
Ontario.$804 per passenger.Departing Thu, 23 Apr, returning Tue, 28 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Toronto Pearson International on Thu, 23 Apr, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Tue, 28 Apr, arriving in Toronto Pearson International.Price includes taxes and charges.From $804, select.

Find the cheapest month to fly from Toronto to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Toronto to Ontario International flights are currently cheapest in May.
Apr
from $804
May
from $633
Jun
from $653
Jul
from $678
Aug
from $677
Sep
from $765
Oct
from $675
Nov
from $729
Dec
from $768
Jan
Find prices
Feb
Find prices
Mar
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Toronto to Ontario International: Alternative routes

Compare routes from Toronto to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Ontario International

4km from central Ontario
Closest
from $633
Search flights

San Bernardino Norton AFB

39km from central Ontario
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Santa Ana John Wayne

48km from central Ontario
from $560
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Long Beach Municipal

54km from central Ontario
from $1,226
Search flights

Hawthorne

65km from central Ontario
Search flights

Burbank

67km from central Ontario
from $649
Search flights

Los Angeles International

71km from central Ontario
Cheapest
from $407
Search flights

Toronto to Ontario: Flight information

The things to know before you go.
Cheapest flight found$633
Cheapest month to flyMay

Finding cheap flights from Toronto to Ontario International: Frequently asked questions

The best price we found for a return flight from Toronto to Ontario International is $633. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Toronto to Ontario International. But we found flights with one stop from $633.
As of April 2026, there are no flights flying from Toronto to Ontario International.
The cheapest month to fly from Toronto to Ontario International is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Toronto to Ontario International Airport on Saturday, 2 May 2026.
No airlines currently offer direct flights between Toronto and Ontario International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Ontario International is Delta .

Travelling from Toronto to Ontario International Airport (ONT): What you need to know

  • The timezone in Ontario is UTC-8, which is three hours behind Toronto. Ontario International Airport is located in Ontario.

  • Give yourself plenty of time to catch your flight from Toronto to ONT. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

  • Popular months like July or other busy periods mean longer queues and potential delays. Get a head start by getting to the airport even earlier. Aim for at least four hours ahead of an international flight and two hours before a domestic departure.

Airports in Toronto

Toronto Pearson International Airport (YYZ)

  • YYZ is around 27 kilometres from central Toronto. If you're driving, catching a taxi or ride-sharing from the centre, it'll take you 30 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the travel time to be around 25 minutes.

  • Catching an early flight from Toronto to Ontario International Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels close to Toronto Pearson International Airport:

  • 68% of flights taking off from Toronto Pearson International Airport arrive at their destination on time.

Billy Bishop Toronto City Airport (YTZ)

  • You can get to YTZ from the centre of Toronto in approximately 10 minutes by car, depending on traffic. The journey on public transport will take roughly 20 minutes to travel the 3 kilometres or so.

  • Flying out early in the morning? You might like to check in to one of these hotels near Billy Bishop Toronto City Airport the day before your Toronto to ONT flight:

  • When it comes to flights staying on schedule, Billy Bishop Toronto City Airport has an on-time arrival rate of 70%.

John C. Munro Hamilton International Airport (YHM)

  • The trip to YHM from central Toronto is around 1 hour 50 minutes on public transport. If you're planning to travel by car, it'll take you roughly 1 hour 10 minutes to cover the 72 kilometres or so.

  • Make catching an early Toronto to Ontario International Airport flight the easiest part of your journey. Book a room at one of these hotels close to John C. Munro Hamilton International Airport and get to your gate feeling relaxed and unhurried:

  • Flights departing from YHM arrive at their destination within the expected time frame 68% of the time.

About Ontario International Airport (ONT)

  • If you're arriving on a late flight from Toronto to Ontario International Airport, few things top the convenience of staying near the terminal. Grab your bags from the carousel and then be showered and snoozing not long after at one of these options near ONT:

  • Booking your vehicle around three weeks in advance of your Toronto to Ontario International Airport flight can help you get a cheaper deal.

  • The street address for ONT is 2900 E. Airport Drive.

Getting from Ontario International Airport (ONT) to central Ontario

  • From Ontario International Airport, central Ontario is around 10 kilometres away. It takes about 15 minutes to reach the city centre by car.

  • When travelling by public transport, expect a journey of around 45 minutes.

How to find the cheapest flights from Toronto to Ontario International Airport (ONT)

  • The lowest price we've found for a one-way ticket from Toronto to Ontario International Airport is $345. For a return flight on this route, the best price is $632. Depending on when and how early you book, these fares could change.

  • Booking early is often the key to finding a cheap flight from Toronto to ONT. Airlines adjust prices based on demand, so the closer you get to departure, the more you'll likely spend on your ticket.

  • Affordable Toronto to Ontario International Airport tickets are easier to find when you have flexibility in your schedule. Try using the 'Whole month' search tool to compare fares across every month and then pick the cheapest day.

  • Never miss a deal on plane tickets from Toronto to ONT by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.

  • Hunt down a great price on a flight from Toronto to Ontario International Airport with the help of the filters. Pick your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest.'

The best time to fly from Toronto to Ontario International Airport (ONT)

  • It's time to work out your travel dates for your flight from Toronto to Ontario International Airport (ONT). July is the busiest month to visit Ontario. If a slower pace sounds more appealing, go in December.

  • Before locking in your Toronto to ONT plane ticket, consider what kind of weather works for you. August is the warmest month in Ontario, with temperatures ranging from 16ºC to 36ºC.

  • February sees temperatures of between 4ºC and 24ºC. Look for cheap tickets from Toronto to Ontario International Airport around that time if you like travelling in cooler conditions.

More about Ontario

Explore more of the United States

  • Ontario is easy to fall in love with, but there are so many other corners of the United States waiting to be explored. Around 153 kilometres south of Ontario, a visit to San Diego will keep you on the go. Check out popular attractions like San Diego Zoo, San Diego Balboa Park and USS Midway Museum.

  • If you want to check out another major destination in the United States, head for Bakersfield, roughly 193 kilometres northwest of Ontario. Kern County Museum, Rabobank Arena, Theatre & Convention Centre and Bakersfield Museum of Art are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.