Route Price Intelligence
Cheap Flights From St. Louis to Ottawa
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$406
Deals From
$376
Usually Costs
$376 – $435
Lowest We've Seen
$313
Based on 3,456 price pointshigh confidence
Monthly Price Guide
Jan
$406
Feb
$384
Mar
$435
Apr
$464
May
$374
Jun
$372
Jul
$382
Aug
$402
Sep
$407
Oct
$407
Nov
$408
Dec
$435
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 $372. The most expensive month tends to be April at around $464. 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: $31362 price checksWorst: $423