Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Baltimore → San Diego via San Francisco: arrives on time 34%
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18:59 BWI → 21:50 SFOUA 504 · United · 5h 51m · 56% on time, 1.8% cancelled
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52m layover in San Francisco (SFO) · 45 min minimum on one ticket
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22:42 SFO → 00:31 SAN +1 dayUA 2142 · United · 1h 49m · 73% on time, 0.0% cancelled
Total trip 8h 32m, scheduled departure to arrival (San Diego is 3 h behind Baltimore). Times are local. Both flew on 34 of the last 56 days.
Makes the connection48%The first flight arrived more than 7 minutes late on 52% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time34%First flight not cancelled (1.8% are) × connection made (48%) × second flight not cancelled (0.0% are) and within 15 minutes (73%).
Total trip8h 32mBWI 18:59 to SAN 00:31, 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.