Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Phoenix → St Louis via Seattle: arrives on time 86%

  1. 06:59 PHX → 10:05 SEA
    DL 1570 · Delta · 3h 06m · 95% on time, 0.0% cancelled
  2. 3h 01m layover in Seattle (SEA) · 90 min minimum on separate tickets
  3. 13:06 SEA → 18:57 STL
    AS 647 · Alaska · 3h 51m · 88% on time, 0.0% cancelled

Total trip 9h 58m, scheduled departure to arrival (St Louis is 2 h ahead of Phoenix). Times are local. Both flew on 38 of the last 56 days.

Makes the connection98%The first flight arrived more than 91 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 3h 01m layover.
Arrives on time86%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip9h 58mPHX 06:59 to STL 18:57, 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.