Route Price Intelligence
Cheap Flights From St. Louis to Philadelphia
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$427
Deals From
$290
Usually Costs
$290 – $443
Lowest We've Seen
$136
Based on 8,489 price pointshigh confidence
Monthly Price Guide
Jan
$242
Feb
$256
Mar
$264
Apr
$240
May
$388
Jun
$443
Jul
$443
Aug
$443
Sep
$443
Oct
$443
Nov
$443
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 $240. The most expensive month tends to be December at around $463. For the best deals, consider flying in April, January, February.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13663 price checksWorst: $180