Popular in | July |
---|---|
Cheapest in | May |
Round-trip from | $238 |
One-way from | $70 |
Wednesday is generally a great day to depart. Flying on this day could help you save up to 44%.
Find a great deal and save up to 60% by booking at least 39 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Chicago to Ontario within the next two weeks, with the cheapest ticket starting at $318.
Due to multiple factors, expect to potentially pay more when booking in March. For low rates, September can be a great choice for travel to Ontario. Flights to Ontario from Chicago in September are about $303 on average during September, but can be found for as low as $64.
Unlike at noon, when flights are generally more expensive, you can save up to 37% on flights from Chicago to Ontario by exploring options for tickets in the evening.
Fly from
Fly to
Budget
$136 - $260
Route
Depart
Return
Price
Chicago O'Hare IntlOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Tue 9/10
1 stop6h 32m
Ontario
Tue 9/17
1 stop6h 12m
Chicago MidwayOntario
MDW - ONT
MDWONT
Chicago Midway
Fri 9/27
1 stop6h 26m
Ontario
Sat 10/5
1 stop9h 43m
Chicago O'Hare IntlOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Tue 8/20
1 stop15h 36m
Ontario
Wed 8/28
1 stop9h 17m
Chicago MidwayOntario
MDW - ONT
MDWONT
Chicago Midway
Thu 9/19
1 stop12h 16m
Ontario
Sat 9/28
1 stop9h 43m
Chicago O'Hare IntlOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Fri 9/27
1 stop6h 51m
Ontario
Sat 10/5
1 stop6h 12m
Chicago MidwayOntario
MDW - ONT
MDWONT
Chicago Midway
Thu 9/19
1 stop21h 36m
Ontario
Tue 9/24
1 stop9h 03m
Chicago O'Hare IntlOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Tue 8/20
1 stop12h 52m
Ontario
Fri 8/23
1 stop6h 12m
Chicago O'Hare IntlOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Tue 8/13
2 stops11h 26m
Ontario
Sat 8/17
2 stops12h 12m
Chicago O'Hare IntlOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Wed 6/19
1 stop7h 03m
Ontario
Fri 6/21
1 stop7h 58m
LAX Temperature | 57.2 - 73.4 °F |
---|
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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).
Crew
Entertainment
Comfort
Boarding
Overall
Food
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Crew
Entertainment
Comfort
Boarding
Overall
Food
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Crew
Entertainment
Comfort
Boarding
Overall
Food
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Crew
Entertainment
Comfort
Boarding
Overall
Food
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Crew
Entertainment
Comfort
Boarding
Overall
Food
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Crew
Entertainment
Comfort
Boarding
Overall
Food
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Frontier | Cheapest$120 | Average$209 | FlexibilityNo cancel fee | On-time62% |
Spirit Airlines | Cheapest$126 | Average$247 | FlexibilityNo cancel fee | On-time65% |
Delta | Cheapest$276 | Average$398 | FlexibilityNo cancel fee | On-timeN/A |
American Airlines | Cheapest$311 | Average$388 | FlexibilityNo cancel fee | On-time71% |
United Airlines | Cheapest$312 | Average$489 | FlexibilityNo cancel fee | On-time69% |
1%of flight departures | Early morningMidnight to 6 am |
---|---|
88%of flight departures | Morning6 am to noon |
11%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
Sunday | 1daily flight |
---|---|
Monday | 3daily flights |
Tuesday | 3daily flights |
Wednesday | 3daily flights |
Thursday | 3daily flights |
Friday | 3daily flights |
Saturday | 3daily flights |
Deals for Chicago to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chicago to Ontario.
Yes, we can. To see specific flights from Chicago to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Not ready to book yet? You can track prices for flights from Chicago to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.