Route Price Intelligence
Cheap Flights From San Diego to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$451
Deals From
$430
Usually Costs
$430 – $503
Lowest We've Seen
$185
Based on 6,034 price pointshigh confidence
Monthly Price Guide
Jan
$503
Feb
$503
Mar
$666
Apr
$419
May
$323
Jun
$444
Jul
$450
Aug
$443
Sep
$443
Oct
$451
Nov
$544
Dec
$544
Cheapest Average Expensive
Best Time to Fly from San Diego to Ontario
The cheapest time to fly from San Diego to Ontario is typically May, when fares average around $323. The most expensive month tends to be March at around $666. For the best deals, consider flying in May, April, August.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $18576 price checksWorst: $383