Route Price Intelligence
Cheap Flights From St. Louis to Ottawa
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$373
Deals From
$363
Usually Costs
$363 – $435
Lowest We've Seen
$313
Based on 296 price pointshigh confidence
Monthly Price Guide
Jan
$364
Feb
$364
Mar
$435
Apr
$682
May
$354
Jun
$352
Jul
$354
Aug
$378
Sep
$388
Oct
$388
Nov
$392
Dec
$417
Cheapest Average Expensive
Best Time to Fly from St. Louis to Ottawa
The cheapest time to fly from St. Louis to Ottawa is typically June, when fares average around $352. The most expensive month tends to be April at around $682. For the best deals, consider flying in June, May, July.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $31360 price checksWorst: $423