Route Price Intelligence
Cheap Flights From Denver to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$371
Deals From
$210
Usually Costs
$210 – $449
Lowest We've Seen
$56
Based on 1,462 price pointshigh confidence
Monthly Price Guide
Jan
$457
Feb
$449
Mar
$469
Apr
$201
May
$154
Jun
$210
Jul
$224
Aug
$230
Sep
$449
Oct
$449
Nov
$449
Dec
$457
Cheapest Average Expensive
Best Time to Fly from Denver to Ontario
The cheapest time to fly from Denver to Ontario is typically May, when fares average around $154. The most expensive month tends to be March at around $469. For the best deals, consider flying in May, April, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $5668 price checksWorst: $125