Route Price Intelligence
Cheap Flights From Philadelphia to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$400
Deals From
$230
Usually Costs
$230 – $463
Lowest We've Seen
$136
Based on 8,671 price pointshigh confidence
Monthly Price Guide
Jan
$463
Feb
$475
Mar
$310
Apr
$201
May
$185
Jun
$230
Jul
$295
Aug
$295
Sep
$463
Oct
$463
Nov
$463
Dec
$473
Cheapest Average Expensive
Best Time to Fly from Philadelphia to Saint Louis
The cheapest time to fly from Philadelphia to Saint Louis is typically May, when fares average around $185. The most expensive month tends to be February at around $475. For the best deals, consider flying in May, April, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $14090 price checksWorst: $302