Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → Pittsburgh via Boston: arrives on time 88%
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23:59 DEN → 05:58 BOSUA 2656 · United · 3h 59m · 92% on time, 1.3% cancelled
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2h 17m layover in Boston (BOS) · 90 min minimum on separate tickets
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08:15 BOS → 10:19 PIT +1 dayDL 5678 · Delta, flown by Republic · 2h 03m · 92% on time, 2.0% cancelled
Total trip 8h 19m, scheduled departure to arrival (Pittsburgh is 2 h ahead of Denver). Times are local. Both flew on 47 of the last 56 days.
Makes the connection99%The first flight arrived more than 47 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 2h 17m layover.
Arrives on time88%First flight not cancelled (1.3% are) × connection made (99%) × second flight not cancelled (2.0% are) and within 15 minutes (92%).
Total trip8h 19mDEN 23:59 to PIT 10:19, 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.