Cheapest return flights from St. Louis to Chicago in October from 66€

AirHint found the following cheapest return flights from St. Louis (STL) to Chicago (MDW) in October 2025 (see full year).

Return flights

02 Oct - 04 Oct Southwest Airlines direct
01 Oct - 04 Oct Southwest Airlines direct
01 Oct - 03 Oct Southwest Airlines direct
17 Oct - 20 Oct Southwest Airlines direct
09 Oct - 12 Oct Frontier Airlines
17 Oct - 19 Oct Delta

Also check the deals for one-way flights from St. Louis to Chicago in October.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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