Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Baltimore via Detroit: arrives on time 93%
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21:30 SFO → 05:20 DTWUA 234 · United · 4h 50m · 100% on time, 0.0% cancelled
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1h 50m layover in Detroit (DTW) · 90 min minimum on separate tickets
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07:10 DTW → 08:44 BWI +1 dayDL 2341 · Delta · 1h 34m · 95% on time, 3.0% cancelled
Total trip 8h 14m, scheduled departure to arrival (Baltimore is 3 h ahead of San Francisco). Times are local. Both flew on 24 of the last 56 days.
Makes the connection100%The first flight arrived more than 20 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 1h 50m layover.
Arrives on time93%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (3.0% are) and within 15 minutes (95%).
Total trip8h 14mSFO 21:30 to BWI 08:44, 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.