Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Philadelphia → Denver via Atlanta: arrives on time 48%
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16:08 PHL → 18:25 ATLDL 2131 · Delta · 2h 15m · 70% on time, 1.9% cancelled
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1h 00m layover in Atlanta (ATL) · 45 min minimum on one ticket
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19:25 ATL → 20:44 DENDL 746 · Delta · 3h 19m · 70% on time, 1.1% cancelled
Total trip 6h 36m, scheduled departure to arrival (Denver is 2 h behind Philadelphia). Times are local. Both flew on 56 of the last 56 days.
Makes the connection70%The first flight arrived more than 15 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time48%First flight not cancelled (1.9% are) × connection made (70%) × second flight not cancelled (1.1% are) and within 15 minutes (70%).
Total trip6h 36mPHL 16:08 to DEN 20:44, 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.