Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Detroit via Chicago: arrives on time 51%
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14:00 SAN → 20:20 ORDUA 1779 · United · 4h 20m · 70% on time, 0.0% cancelled
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1h 00m layover in Chicago (ORD) · 45 min minimum on one ticket
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21:20 ORD → 23:54 DTWUA 3475 · United, flown by Republic · 1h 34m · 76% on time, 2.8% cancelled
Total trip 6h 54m, scheduled departure to arrival (Detroit is 3 h ahead of San Diego). Times are local. Both flew on 21 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 time51%First flight not cancelled (0.0% are) × connection made (70%) × second flight not cancelled (2.8% are) and within 15 minutes (76%).
Total trip6h 54mSAN 14:00 to DTW 23:54, 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.