Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Jacksonville via Chicago: arrives on time 78%
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05:40 STL → 06:45 MDWWN 1008 · Southwest · 1h 05m · 89% on time, 1.8% cancelled
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1h 55m layover in Chicago (MDW) · 45 min minimum on one ticket
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08:40 MDW → 12:00 JAXWN 4499 · Southwest · 2h 20m · 80% on time, 0.0% cancelled
Total trip 5h 20m, scheduled departure to arrival (Jacksonville is 1 h ahead of St Louis). Times are local. Both flew on 38 of the last 56 days.
Makes the connection98%The first flight arrived more than 70 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 55m layover.
Arrives on time78%First flight not cancelled (1.8% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (80%).
Total trip5h 20mSTL 05:40 to JAX 12:00, layover included
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.