Cheap flights from St. Louis to Chicago
251 mi · 45m average nonstop
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Quick answer: St. Louis to Chicago at a glance
Cheap flights from St. Louis (STL) to Chicago (MDW) cover 251 miles (403 km) in about 45m nonstop, with 2 airlines flying direct — a short-haul domestic route. Search Kayak for today's cheapest live fare. Route difficulty 1/10.
Summary computed from real OpenFlights coordinates — not an estimate. Prices update live on Kayak.
Flying from St. Louis to Chicago covers 251 miles (404 km) in approximately 0 hour 45 minutes. 2 airlines offer direct flights on this short-haul domestic route. This is a short-haul domestic route typically served by direct flights.
Nonstop distance 251 miles. Direct carriers include FL and WN.
We don't track historical prices for this route yet. Search live fares on Kayak for today's best price across 100+ airlines and booking sites.
Airlines on this route
2 airlines fly St. Louis → Chicago. All are direct routes.
| Airline | Route type |
|---|---|
| FL | Direct |
| WN | Direct |
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St. Louis to Chicago — quick answers
How far is St. Louis from Chicago by plane?
The nonstop flight distance from St. Louis (STL) to Chicago (MDW) is 251 miles (403 km), calculated as a great-circle line from published OpenFlights airport coordinates. Actual flown distance is slightly longer due to airways and winds.
How long is the flight from St. Louis to Chicago?
The average nonstop flight time from STL to MDW is 45 minutes. Gate-to-gate time is usually 20–35 minutes longer; connecting itineraries add 1–4 hours depending on the layover.
Which airlines fly from St. Louis to Chicago?
2 airlines serve this route nonstop: FL, WN. Schedules and amenities differ by carrier — compare live frequencies and fare classes on Kayak before you book.