Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → St Louis via Denver: arrives on time 27%
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16:15 MDW → 18:00 DENWN 2769 · Southwest · 2h 45m · 62% on time, 1.7% cancelled
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1h 15m layover in Denver (DEN) · 45 min minimum on one ticket
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19:15 DEN → 22:28 STLWN 1756 · Southwest · 2h 15m · 40% on time, 6.0% cancelled
Total trip 6h 15m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.
Makes the connection73%The first flight arrived more than 30 minutes late on 27% of the days it flew: too late for the 45-minute minimum connection on a 1h 15m layover.
Arrives on time27%First flight not cancelled (1.7% are) × connection made (73%) × second flight not cancelled (6.0% are) and within 15 minutes (40%).
Total trip6h 15mMDW 16:15 to STL 22:28, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.