Route Price Intelligence
Cheap Flights From Philadelphia to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$443
Deals From
$290
Usually Costs
$290 – $443
Lowest We've Seen
$136
Based on 8,197 price pointshigh confidence
Monthly Price Guide
Jan
$241
Feb
$250
Mar
$258
Apr
$250
May
$390
Jun
$443
Jul
$443
Aug
$443
Sep
$443
Oct
$443
Nov
$443
Dec
$463
Cheapest Average Expensive
Best Time to Fly from Philadelphia to Saint Louis
The cheapest time to fly from Philadelphia to Saint Louis is typically January, when fares average around $241. The most expensive month tends to be December at around $463. For the best deals, consider flying in January, February, April.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13661 price checksWorst: $354