Route Price Intelligence
Cheap Flights From Philadelphia to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$329
Great Deal
Under $257
Typical Range
$257 – $472
Lowest We've Seen
$136
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$277
Feb
$277
Mar
$329
Apr
$236
May
$201
Jun
$210
Jul
$230
Aug
$244
Sep
$331
Oct
$331
Nov
$240
Dec
$257
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 $201. The most expensive month tends to be September at around $331. For the best deals, consider flying in May, June, July.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: November6,475 fares analyzedTypical low: $463
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