Route Price Intelligence
Cheap Flights From Seattle to Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$242
Great Deal
Under $218
Typical Range
$218 – $317
Lowest We've Seen
$88
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$221
Feb
$221
Mar
$256
Apr
$222
May
$201
Jun
$207
Jul
$239
Aug
$229
Sep
$242
Oct
$242
Nov
$223
Dec
$232
Cheapest Average Expensive
Best Time to Fly from Seattle to Ontario
The cheapest time to fly from Seattle to Ontario is typically May, when fares average around $201. The most expensive month tends to be March at around $256. For the best deals, consider flying in May, June, January.
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: November5,910 fares analyzedTypical low: $317
Planning Los Angeles?
Best months to go, what a day on the ground costs, and the tours worth booking.
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