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

Chicago → Seattle via Portland: arrives on time 89%

  1. 10:05 MDW → 12:25 PDX
    WN 2809 · Southwest · 4h 20m · 84% on time, 0.0% cancelled
  2. 3h 01m layover in Portland (PDX) · 90 min minimum on separate tickets
  3. 15:26 PDX → 16:40 SEA
    DL 4062 · Delta, flown by SkyWest · 1h 15m · 89% on time, 0.0% cancelled

Total trip 8h 36m, scheduled departure to arrival (Seattle is 2 h behind Chicago). Times are local. Both flew on 48 of the last 56 days.

Makes the connection100%The first flight arrived more than 91 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 01m layover.
Arrives on time89%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (89%).
Total trip8h 36mMDW 10:05 to SEA 16:40, 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.