Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → San Diego via San Francisco: arrives on time 35%
-
07:40 DEN → 09:18 SFOUA 2391 · United · 2h 38m · 71% on time, 0.6% cancelled
-
47m layover in San Francisco (SFO) · 45 min minimum on one ticket
-
10:05 SFO → 11:51 SANUA 2177 · United · 1h 46m · 68% on time, 0.0% cancelled
Total trip 5h 11m, scheduled departure to arrival (San Diego is 1 h behind Denver). Times are local. Both flew on 56 of the last 56 days.
Makes the connection53%The first flight arrived more than 2 minutes late on 47% of the days it flew: too late for the 45-minute minimum connection on a 47m layover.
Arrives on time35%First flight not cancelled (0.6% are) × connection made (53%) × second flight not cancelled (0.0% are) and within 15 minutes (68%).
Total trip5h 11mDEN 07:40 to SAN 11:51, 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.