Route Price Intelligence
Cheap Flights From Chicago to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$447
Deals From
$322
Usually Costs
$322 – $467
Lowest We've Seen
$145
Based on 8,378 price pointshigh confidence
Monthly Price Guide
Jan
$443
Feb
$310
Mar
$297
Apr
$253
May
$377
Jun
$495
Jul
$489
Aug
$489
Sep
$489
Oct
$447
Nov
$489
Dec
$521
Cheapest Average Expensive
Best Time to Fly from Chicago to Ontario
The cheapest time to fly from Chicago to Ontario is typically April, when fares average around $253. The most expensive month tends to be December at around $521. For the best deals, consider flying in April, March, February.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $14561 price checksWorst: $241