Route Price Intelligence
Cheap Flights From St. Louis to Ottawa
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$369
Deals From
$346
Usually Costs
$346 – $449
Lowest We've Seen
$313
Based on 5,312 price pointshigh confidence
Monthly Price Guide
Jan
$366
Feb
$366
Mar
$585
Apr
$365
May
$342
Jun
$360
Jul
$366
Aug
$368
Sep
$424
Oct
$420
Nov
$420
Dec
$427
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 $342. The most expensive month tends to be March at around $585. For the best deals, consider flying in May, June, April.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $31374 price checksWorst: $423