Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Philadelphia via Chicago: arrives on time 68%
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09:08 STL → 10:36 ORDAA 4104 · American, flown by Envoy · 1h 28m · 94% on time, 0.0% cancelled
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1h 04m layover in Chicago (ORD) · 45 min minimum on one ticket
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11:40 ORD → 14:54 PHLAA 1743 · American · 2h 14m · 74% on time, 2.2% cancelled
Total trip 4h 46m, scheduled departure to arrival (Philadelphia is 1 h ahead of St Louis). Times are local. Both flew on 56 of the last 56 days.
Makes the connection94%The first flight arrived more than 19 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 04m layover.
Arrives on time68%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (2.2% are) and within 15 minutes (74%).
Total trip4h 46mSTL 09:08 to PHL 14:54, 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.