Route Price Intelligence
Cheap Flights From St. Louis to Ottawa
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$376
Deals From
$345
Usually Costs
$345 – $427
Lowest We've Seen
$313
Based on 5,999 price pointshigh confidence
Monthly Price Guide
Jan
$406
Feb
$384
Mar
$685
Apr
$380
May
$341
Jun
$341
Jul
$367
Aug
$376
Sep
$406
Oct
$405
Nov
$406
Dec
$412
Cheapest Average Expensive
Best Time to Fly from St. Louis to Ottawa
The cheapest time to fly from St. Louis to Ottawa is typically May, when fares average around $341. The most expensive month tends to be March at around $685. For the best deals, consider flying in May, June, July.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $31377 price checksWorst: $423