Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Denver via Detroit: arrives on time 58%
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13:10 BOS → 15:20 DTWDL 2222 · Delta · 2h 09m · 81% on time, 1.9% cancelled
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1h 01m layover in Detroit (DTW) · 45 min minimum on one ticket
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16:21 DTW → 17:27 DENDL 2431 · Delta · 3h 14m · 72% on time, 0.0% cancelled
Total trip 6h 25m, scheduled departure to arrival (Denver is 2 h behind Boston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection82%The first flight arrived more than 16 minutes late on 18% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time58%First flight not cancelled (1.9% are) × connection made (82%) × second flight not cancelled (0.0% are) and within 15 minutes (72%).
Total trip6h 25mBOS 13:10 to DEN 17:27, 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.