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

Boise → Chicago via Seattle: arrives on time 8%

  1. 10:00 BOI → 10:34 SEA
    AS 2166 · Alaska, flown by Horizon · 1h 34m · 44% on time, 0.0% cancelled
  2. 55m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 11:29 SEA → 17:38 ORD
    AS 346 · Alaska · 4h 09m · 28% on time, 5.7% cancelled

Total trip 6h 38m, scheduled departure to arrival (Chicago is 1 h ahead of Boise). Times are local. Both flew on 35 of the last 56 days.

Makes the connection29%The first flight arrived more than 10 minutes late on 71% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time8%First flight not cancelled (0.0% are) × connection made (29%) × second flight not cancelled (5.7% are) and within 15 minutes (28%).
Total trip6h 38mBOI 10:00 to ORD 17:38, 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.