Route Price Intelligence
Cheap Flights From Washington, D.C. to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$382
Deals From
$321
Usually Costs
$321 – $523
Lowest We've Seen
$160
Based on 8,242 price pointshigh confidence
Monthly Price Guide
Jan
$523
Feb
$523
Mar
$489
Apr
$235
May
$250
Jun
$368
Jul
$472
Aug
$420
Sep
$478
Oct
$505
Nov
$514
Dec
$523
Cheapest Average Expensive
Best Time to Fly from Washington, D.C. to Ontario
The cheapest time to fly from Washington, D.C. to Ontario is typically April, when fares average around $235. The most expensive month tends to be February at around $523. For the best deals, consider flying in April, May, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13990 price checksWorst: $220