Route Price Intelligence
Cheap Flights From St. Louis to Chicago
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$318
Deals From
$270
Usually Costs
$270 – $337
Lowest We've Seen
$89
Based on 8,528 price pointshigh confidence
Monthly Price Guide
Jan
$337
Feb
$337
Mar
$376
Apr
$226
May
$218
Jun
$310
Jul
$310
Aug
$300
Sep
$337
Oct
$337
Nov
$337
Dec
$337
Cheapest Average Expensive
Best Time to Fly from St. Louis to Chicago
The cheapest time to fly from St. Louis to Chicago is typically May, when fares average around $218. The most expensive month tends to be March at around $376. For the best deals, consider flying in May, April, August.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $8988 price checksWorst: $317