Route Price Intelligence
Cheap Flights From Philadelphia to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$471
Deals From
$230
Usually Costs
$230 – $479
Lowest We've Seen
$136
Based on 924 price pointshigh confidence
Monthly Price Guide
Jan
$479
Feb
$479
Mar
$495
Apr
$236
May
$185
Jun
$224
Jul
$230
Aug
$244
Sep
$469
Oct
$472
Nov
$479
Dec
$482
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 March at around $495. For the best deals, consider flying in May, June, July.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $14071 price checksWorst: $302