Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

San Francisco → Philadelphia via Denver: arrives on time 52%

  1. 12:43 SFO → 16:35 DEN
    UA 540 · United · 2h 52m · 77% on time, 0.0% cancelled
  2. 1h 19m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 17:54 DEN → 23:30 PHL
    UA 1510 · United · 3h 36m · 58% on time, 0.0% cancelled

Total trip 7h 47m, scheduled departure to arrival (Philadelphia is 3 h ahead of San Francisco). Times are local. Both flew on 55 of the last 56 days.

Makes the connection89%The first flight arrived more than 34 minutes late on 11% of the days it flew: too late for the 45-minute minimum connection on a 1h 19m layover.
Arrives on time52%First flight not cancelled (0.0% are) × connection made (89%) × second flight not cancelled (0.0% are) and within 15 minutes (58%).
Total trip7h 47mSFO 12:43 to PHL 23:30, 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.