Route Price Intelligence
Cheap Flights From Philadelphia to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$415
Deals From
$230
Usually Costs
$230 – $471
Lowest We've Seen
$136
Based on 4,121 price pointshigh confidence
Monthly Price Guide
Jan
$471
Feb
$471
Mar
$573
Apr
$222
May
$181
Jun
$225
Jul
$230
Aug
$250
Sep
$463
Oct
$463
Nov
$471
Dec
$474
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 $181. The most expensive month tends to be March at around $573. 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: $14074 price checksWorst: $302