ONT - CHI Price
|
$245 - $312
|
CHI Temperature
|
33.8 - 84.2 °F
|
CHI Rainfall
|
0.7 - 4.3 inches
|
Popular in December High demand for flights, 13% potential price rise |
Cheapest in July Best time to find cheap flights, 9% potential price drop |
Round-trip from $245 From Ontario to Chicago |
One-way from $120 One-way flight from Ontario to Chicago |
Flights from Ontario to Chicago are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Chicago.
To save up to 10% on this flight, we recommend booking at least 20 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Chicago from $137 1-2 weeks out and tickets from $157 for flights departing within the next 72 hours.
Flights from Ontario to Chicago lean towards being more expensive in December. Prices are generally better when you fly from Ontario to Chicago in April, with the cheapest ticket starting at $33.
Unlike in the morning, when flights are generally more expensive, you can save up to 11% on flights from Ontario to Chicago by exploring options for tickets at noon.
The chart below displays the airlines Cheapflights users traveling from Ontario to Chicago choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
---|---|---|---|---|---|---|
![]() |
$95 | $215 | No cancel fee | 65% | ||
![]() |
$117 | $257 | No cancel fee | 62% | ||
![]() |
$122 | $276 | No cancel fee | 69% | ||
![]() |
$109 | $296 | No cancel fee | 71% | ||
![]() |
$122 | $460 | No cancel fee | N/A | ||
![]() |
$418 | $499 | No cancel fee | 63% |