Route Price Intelligence
Cheap Flights From St. Louis to Philadelphia
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$400
Deals From
$256
Usually Costs
$256 – $463
Lowest We've Seen
$136
Based on 8,561 price pointshigh confidence
Monthly Price Guide
Jan
$463
Feb
$483
Mar
$295
Apr
$181
May
$205
Jun
$330
Jul
$373
Aug
$363
Sep
$463
Oct
$463
Nov
$463
Dec
$463
Cheapest Average Expensive
Best Time to Fly from St. Louis to Philadelphia
The cheapest time to fly from St. Louis to Philadelphia is typically April, when fares average around $181. 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: $13686 price checksWorst: $180