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

Charlotte → San Francisco via Houston: arrives on time 78%

  1. 17:00 CLT → 18:58 IAH
    UA 4020 · United, flown by Mesa · 2h 58m · 80% on time, 0.0% cancelled
  2. 3h 01m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 21:59 IAH → 00:05 SFO +1 day
    UA 1609 · United · 4h 06m · 80% on time, 1.2% cancelled

Total trip 10h 05m, scheduled departure to arrival (San Francisco is 3 h behind Charlotte). Times are local. Both flew on 54 of the last 56 days.

Makes the connection99%The first flight arrived more than 136 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 01m layover.
Arrives on time78%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (1.2% are) and within 15 minutes (80%).
Total trip10h 05mCLT 17:00 to SFO 00:05, 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.