Route Price Intelligence
Cheap Flights From San Diego to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$448
Deals From
$413
Usually Costs
$413 – $503
Lowest We've Seen
$185
Based on 5,422 price pointshigh confidence
Monthly Price Guide
Jan
$503
Feb
$503
Mar
$570
Apr
$325
May
$338
Jun
$449
Jul
$443
Aug
$443
Sep
$443
Oct
$451
Nov
$533
Dec
$523
Cheapest Average Expensive
Best Time to Fly from San Diego to Ontario
The cheapest time to fly from San Diego to Ontario is typically April, when fares average around $325. The most expensive month tends to be March at around $570. For the best deals, consider flying in April, May, July.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $18573 price checksWorst: $383