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

Boston → Houston via San Francisco: arrives on time 36%

  1. 20:20 BOS → 23:57 SFO
    UA 2107 · United · 6h 37m · 58% on time, 2.4% cancelled
  2. 48m layover in San Francisco (SFO) · 45 min minimum on one ticket
  3. 00:45 SFO → 06:34 IAH +1 day
    UA 604 · United · 3h 49m · 83% on time, 0.0% cancelled

Total trip 11h 14m, scheduled departure to arrival (Houston is 1 h behind Boston). Times are local. Both flew on 37 of the last 56 days.

Makes the connection45%The first flight arrived more than 3 minutes late on 55% of the days it flew: too late for the 45-minute minimum connection on a 48m layover.
Arrives on time36%First flight not cancelled (2.4% are) × connection made (45%) × second flight not cancelled (0.0% are) and within 15 minutes (83%).
Total trip11h 14mBOS 20:20 to IAH 06:34, 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.