Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Detroit via San Francisco: arrives on time 98%
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16:09 SAN → 17:49 SFOUA 2117 · United · 1h 40m · 76% on time, 0.6% cancelled
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3h 41m layover in San Francisco (SFO) · 45 min minimum on one ticket
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21:30 SFO → 05:20 DTW +1 dayUA 234 · United · 4h 50m · 100% on time, 0.0% cancelled
Total trip 10h 11m, scheduled departure to arrival (Detroit is 3 h ahead of San Diego). Times are local. Both flew on 28 of the last 56 days.
Makes the connection99%The first flight arrived more than 176 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 41m layover.
Arrives on time98%First flight not cancelled (0.6% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (100%).
Total trip10h 11mSAN 16:09 to DTW 05:20, 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.