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

Chicago → Phoenix via San Francisco: arrives on time 69%

  1. 06:10 ORD → 08:47 SFO
    UA 246 · United · 4h 37m · 93% on time, 0.7% cancelled
  2. 1h 18m layover in San Francisco (SFO) · 45 min minimum on one ticket
  3. 10:05 SFO → 12:14 PHX
    UA 500 · United · 2h 09m · 72% on time, 0.0% cancelled

Total trip 8h 04m, scheduled departure to arrival (Phoenix is 2 h behind Chicago). Times are local. Both flew on 40 of the last 56 days.

Makes the connection97%The first flight arrived more than 33 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 18m layover.
Arrives on time69%First flight not cancelled (0.7% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (72%).
Total trip8h 04mORD 06:10 to PHX 12:14, 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.