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

Boston → Dallas-Fort Worth via Houston: arrives on time 44%

  1. 15:54 BOS → 19:08 IAH
    UA 1183 · United · 4h 14m · 71% on time, 1.5% cancelled
  2. 51m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 19:59 IAH → 21:25 DFW
    UA 1949 · United · 1h 26m · 71% on time, 0.9% cancelled

Total trip 6h 31m, scheduled departure to arrival (Dallas-Fort Worth is 1 h behind Boston). Times are local. Both flew on 44 of the last 56 days.

Makes the connection63%The first flight arrived more than 6 minutes late on 37% of the days it flew: too late for the 45-minute minimum connection on a 51m layover.
Arrives on time44%First flight not cancelled (1.5% are) × connection made (63%) × second flight not cancelled (0.9% are) and within 15 minutes (71%).
Total trip6h 31mBOS 15:54 to DFW 21:25, 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.