Route Price Intelligence
Cheap Flights From Portland to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$259
Deals From
$242
Usually Costs
$242 – $266
Lowest We've Seen
$133
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$259
Feb
—
Mar
—
Apr
$305
May
$217
Jun
$250
Jul
$259
Aug
$244
Sep
$259
Oct
$259
Nov
$259
Dec
$288
Cheapest Average Expensive
Best Time to Fly from Portland to Ontario
The cheapest time to fly from Portland to Ontario is typically May, when fares average around $217. The most expensive month tends to be April at around $305. For the best deals, consider flying in May, August, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $14069 price checksWorst: $180