Route Price Intelligence
Cheap Flights From Denver to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$270
Deals From
$181
Usually Costs
$181 – $407
Lowest We've Seen
$56
Based on 8,691 price pointshigh confidence
Monthly Price Guide
Jan
$173
Feb
$113
Mar
$121
Apr
$139
May
$269
Jun
$417
Jul
$417
Aug
$415
Sep
$417
Oct
$417
Nov
$417
Dec
$417
Cheapest Average Expensive
Best Time to Fly from Denver to Ontario
The cheapest time to fly from Denver to Ontario is typically February, when fares average around $113. The most expensive month tends to be September at around $417. For the best deals, consider flying in February, March, April.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $5660 price checksWorst: $406