Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → St Louis via Detroit: arrives on time 77%
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06:15 SAN → 13:47 DTWDL 754 · Delta · 4h 32m · 91% on time, 0.5% cancelled
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2h 54m layover in Detroit (DTW) · 45 min minimum on one ticket
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16:41 DTW → 17:23 STLDL 2822 · Delta · 1h 42m · 79% on time, 1.8% cancelled
Total trip 9h 08m, scheduled departure to arrival (St Louis is 2 h ahead of San Diego). Times are local. Both flew on 56 of the last 56 days.
Makes the connection100%The first flight arrived more than 129 minutes late on <1% of the days it flew: too late for the 45-minute minimum connection on a 2h 54m layover.
Arrives on time77%First flight not cancelled (0.5% are) × connection made (100%) × second flight not cancelled (1.8% are) and within 15 minutes (79%).
Total trip9h 08mSAN 06:15 to STL 17:23, 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.