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Route Price Intelligence

Cheap Flights From Chicago to Saint Louis

Live pricing benchmarks, monthly patterns, and historical lows for this route.

Typical Price
$320
Deals From
$270
Usually Costs
$270$337
Lowest We've Seen
$89
Based on 8,516 price pointshigh confidence

Monthly Price Guide

Jan
$337
Feb
$337
Mar
$435
Apr
$216
May
$225
Jun
$310
Jul
$314
Aug
$294
Sep
$337
Oct
$337
Nov
$337
Dec
$337
Cheapest Average Expensive

Best Time to Fly from Chicago to Saint Louis

The cheapest time to fly from Chicago to Saint Louis is typically April, when fares average around $216. The most expensive month tends to be March at around $435. For the best deals, consider flying in April, May, August.

Cheapest Fare Found (Last 90 Days)

The lowest round-trip price available on each day we checked

$89$128$167$206$245Jan 5Feb 18Apr 3
Best: $8989 price checksWorst: $245
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