Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Philadelphia → Birmingham via Chicago: arrives on time 27%
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19:00 PHL → 20:33 ORDUA 2797 · United · 2h 33m · 48% on time, 8.3% cancelled
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57m layover in Chicago (ORD) · 45 min minimum on one ticket
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21:30 ORD → 23:34 BHMUA 4447 · United, flown by GoJet · 2h 04m · 79% on time, 5.6% cancelled
Total trip 5h 34m, scheduled departure to arrival (Birmingham is 1 h behind Philadelphia). Times are local. Both flew on 36 of the last 56 days.
Makes the connection39%The first flight arrived more than 12 minutes late on 61% of the days it flew: too late for the 45-minute minimum connection on a 57m layover.
Arrives on time27%First flight not cancelled (8.3% are) × connection made (39%) × second flight not cancelled (5.6% are) and within 15 minutes (79%).
Total trip5h 34mPHL 19:00 to BHM 23:34, 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.