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

Chicago → Boise via Seattle: arrives on time 44%

  1. 08:02 ORD → 10:37 SEA
    AS 587 · Alaska · 4h 35m · 64% on time, 0.4% cancelled
  2. 59m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 11:36 SEA → 14:07 BOI
    AS 2106 · Alaska, flown by Horizon · 1h 31m · 71% on time, 1.8% cancelled

Total trip 7h 05m, scheduled departure to arrival (Boise is 1 h behind Chicago). Times are local. Both flew on 52 of the last 56 days.

Makes the connection63%The first flight arrived more than 14 minutes late on 37% of the days it flew: too late for the 45-minute minimum connection on a 59m layover.
Arrives on time44%First flight not cancelled (0.4% are) × connection made (63%) × second flight not cancelled (1.8% are) and within 15 minutes (71%).
Total trip7h 05mORD 08:02 to BOI 14:07, 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.