Route Price Intelligence
Cheap Flights From San Diego to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$451
Great Deal
Under $401
Typical Range
$401 – $505
Lowest We've Seen
$185
Based on 213 price pointshigh confidence
Monthly Price Guide
Jan
$502
Feb
—
Mar
—
Apr
$644
May
$382
Jun
$451
Jul
$451
Aug
$366
Sep
$366
Oct
$451
Nov
$526
Dec
$564
Cheapest Average Expensive
Best Time to Fly from San Diego to Ontario
The cheapest time to fly from San Diego to Ontario is typically August, when fares average around $366. The most expensive month tends to be April at around $644. For the best deals, consider flying in August, September, May.
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: August17,551 fares analyzedTypical low: $431