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

San Francisco → St Louis via Denver: arrives on time 80%

  1. 05:00 SFO → 08:35 DEN
    UA 1479 · United · 2h 35m · 96% on time, 0.0% cancelled
  2. 1h 00m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 09:35 DEN → 12:42 STL
    UA 652 · United · 2h 07m · 84% on time, 0.6% cancelled

Total trip 5h 42m, scheduled departure to arrival (St Louis is 2 h ahead of San Francisco). Times are local. Both flew on 56 of the last 56 days.

Makes the connection96%The first flight arrived more than 15 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time80%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.6% are) and within 15 minutes (84%).
Total trip5h 42mSFO 05:00 to STL 12:42, 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.