Route Price Intelligence
Cheap Flights From Philadelphia to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$404
Deals From
$270
Usually Costs
$270 – $463
Lowest We've Seen
$136
Based on 8,625 price pointshigh confidence
Monthly Price Guide
Jan
$463
Feb
$483
Mar
$310
Apr
$180
May
$205
Jun
$335
Jul
$367
Aug
$363
Sep
$463
Oct
$463
Nov
$463
Dec
$463
Cheapest Average Expensive
Best Time to Fly from Philadelphia to Saint Louis
The cheapest time to fly from Philadelphia to Saint Louis is typically April, when fares average around $180. The most expensive month tends to be February at around $483. For the best deals, consider flying in April, May, March.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13688 price checksWorst: $354