Route Price Intelligence
Cheap Flights From Washington, D.C. to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$351
Great Deal
Under $298
Typical Range
$298 – $416
Lowest We've Seen
$160
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$364
Feb
$364
Mar
$456
Apr
$366
May
—
Jun
—
Jul
$410
Aug
$287
Sep
$242
Oct
$287
Nov
$366
Dec
$382
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 September, when fares average around $242. The most expensive month tends to be March at around $456. For the best deals, consider flying in September, October, August.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: August62,036 fares analyzedTypical low: $345