Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Philadelphia → St Louis via Chicago: arrives on time 77%
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08:05 PHL → 09:34 ORDUA 1811 · United · 2h 29m · 87% on time, 2.4% cancelled
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1h 06m layover in Chicago (ORD) · 45 min minimum on one ticket
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10:40 ORD → 12:11 STLUA 1355 · United · 1h 31m · 91% on time, 2.8% cancelled
Total trip 5h 06m, scheduled departure to arrival (St Louis is 1 h behind Philadelphia). Times are local. Both flew on 56 of the last 56 days.
Makes the connection88%The first flight arrived more than 21 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 1h 06m layover.
Arrives on time77%First flight not cancelled (2.4% are) × connection made (88%) × second flight not cancelled (2.8% are) and within 15 minutes (91%).
Total trip5h 06mPHL 08:05 to STL 12:11, 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.