Route Price Intelligence
Cheap Flights From San Diego to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$412
Deals From
$371
Usually Costs
$371 – $431
Lowest We've Seen
$185
Based on 7,649 price pointshigh confidence
Monthly Price Guide
Jan
$590
Feb
$351
Mar
$318
Apr
$300
May
$369
Jun
$467
Jul
$468
Aug
$427
Sep
$429
Oct
$416
Nov
$413
Dec
$395
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 $300. The most expensive month tends to be January at around $590. 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: $18556 price checksWorst: $383