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

Boise → Chicago via Seattle: arrives on time 65%

  1. 19:28 BOI → 20:14 SEA
    DL 3688 · Delta, flown by SkyWest · 1h 46m · 77% on time, 0.4% cancelled
  2. 2h 51m layover in Seattle (SEA) · 90 min minimum on separate tickets
  3. 23:05 SEA → 05:00 MDW +1 day
    WN 2304 · Southwest · 3h 55m · 67% on time, 0.0% cancelled

Total trip 8h 32m, scheduled departure to arrival (Chicago is 1 h ahead of Boise). Times are local. Both flew on 44 of the last 56 days.

Makes the connection98%The first flight arrived more than 81 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 2h 51m layover.
Arrives on time65%First flight not cancelled (0.4% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (67%).
Total trip8h 32mBOI 19:28 to MDW 05:00, 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.