Route Price Intelligence
Cheap Flights From Chicago to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$463
Great Deal
Under $270
Typical Range
$270 – $538
Lowest We've Seen
$145
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$527
Feb
—
Mar
—
Apr
$316
May
$230
Jun
$250
Jul
$290
Aug
$335
Sep
$525
Oct
$527
Nov
$538
Dec
$549
Cheapest Average Expensive
Best Time to Fly from Chicago to Ontario
The cheapest time to fly from Chicago to Ontario is typically May, when fares average around $230. The most expensive month tends to be December at around $549. For the best deals, consider flying in May, June, July.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: August43,063 fares analyzedTypical low: $415