Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Buffalo via Philadelphia: arrives on time 63%
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08:29 ORD → 11:41 PHLAA 471 · American · 2h 12m · 80% on time, 1.0% cancelled
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1h 09m layover in Philadelphia (PHL) · 45 min minimum on one ticket
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12:50 PHL → 14:19 BUFAA 6041 · American, flown by Piedmont · 1h 29m · 77% on time, 1.4% cancelled
Total trip 4h 50m, scheduled departure to arrival (Buffalo is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection83%The first flight arrived more than 24 minutes late on 17% of the days it flew: too late for the 45-minute minimum connection on a 1h 09m layover.
Arrives on time63%First flight not cancelled (1.0% are) × connection made (83%) × second flight not cancelled (1.4% are) and within 15 minutes (77%).
Total trip4h 50mORD 08:29 to BUF 14:19, 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.