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

Houston → Seattle via Los Angeles: arrives on time 87%

  1. 07:10 IAH → 08:39 LAX
    DL 1216 · Delta · 3h 29m · 94% on time, 0.5% cancelled
  2. 3h 20m layover in Los Angeles (LAX) · 45 min minimum on one ticket
  3. 11:59 LAX → 14:54 SEA
    DL 1045 · Delta · 2h 55m · 89% on time, 0.6% cancelled

Total trip 9h 44m, scheduled departure to arrival (Seattle is 2 h behind Houston). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 155 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 20m layover.
Arrives on time87%First flight not cancelled (0.5% are) × connection made (99%) × second flight not cancelled (0.6% are) and within 15 minutes (89%).
Total trip9h 44mIAH 07:10 to SEA 14:54, 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.