Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → San Diego via Detroit: arrives on time 63%
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09:17 MDW → 11:35 DTWDL 4674 · Delta, flown by Endeavor · 1h 18m · 84% on time, 0.0% cancelled
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55m layover in Detroit (DTW) · 45 min minimum on one ticket
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12:30 DTW → 14:12 SANDL 2155 · Delta · 4h 42m · 76% on time, 0.9% cancelled
Total trip 6h 55m, scheduled departure to arrival (San Diego is 2 h behind Chicago). Times are local. Both flew on 55 of the last 56 days.
Makes the connection84%The first flight arrived more than 10 minutes late on 16% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time63%First flight not cancelled (0.0% are) × connection made (84%) × second flight not cancelled (0.9% are) and within 15 minutes (76%).
Total trip6h 55mMDW 09:17 to SAN 14:12, 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.