Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Philadelphia → Chicago via Boston: arrives on time 88%
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06:00 PHL → 07:30 BOSDL 5740 · Delta, flown by Republic · 1h 30m · 92% on time, 1.9% cancelled
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2h 59m layover in Boston (BOS) · 90 min minimum on separate tickets
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10:29 BOS → 12:30 ORDAA 3022 · American · 3h 00m · 91% on time, 0.0% cancelled
Total trip 7h 29m, scheduled departure to arrival (Chicago is 1 h behind Philadelphia). Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 89 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 2h 59m layover.
Arrives on time88%First flight not cancelled (1.9% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip7h 29mPHL 06:00 to ORD 12:30, 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.