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

Chicago → Seattle via Portland: arrives on time 88%

  1. 09:00 ORD → 11:38 PDX
    UA 1994 · United · 4h 38m · 85% on time, 0.0% cancelled
  2. 3h 48m 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 9h 41m, scheduled departure to arrival (Seattle is 2 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 138 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 3h 48m layover.
Arrives on time88%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (89%).
Total trip9h 41mORD 09:00 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.