Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Baltimore → San Francisco via Chicago: arrives on time 30%
-
17:32 BWI → 18:55 ORDUA 590 · United · 2h 23m · 57% on time, 0.6% cancelled
-
1h 09m layover in Chicago (ORD) · 45 min minimum on one ticket
-
20:04 ORD → 22:57 SFOUA 1495 · United · 4h 53m · 45% on time, 1.4% cancelled
Total trip 8h 25m, scheduled departure to arrival (San Francisco is 3 h behind Baltimore). Times are local. Both flew on 55 of the last 56 days.
Makes the connection67%The first flight arrived more than 24 minutes late on 33% of the days it flew: too late for the 45-minute minimum connection on a 1h 09m layover.
Arrives on time30%First flight not cancelled (0.6% are) × connection made (67%) × second flight not cancelled (1.4% are) and within 15 minutes (45%).
Total trip8h 25mBWI 17:32 to SFO 22:57, 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.