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

Boise → Chicago via Atlanta: arrives on time 64%

  1. 14:04 BOI → 20:19 ATL
    DL 874 · Delta · 4h 15m · 89% on time, 1.9% cancelled
  2. 56m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 21:15 ATL → 22:17 MDW
    DL 1076 · Delta · 2h 02m · 77% on time, 2.5% cancelled

Total trip 7h 13m, scheduled departure to arrival (Chicago is 1 h ahead of Boise). Times are local. Both flew on 56 of the last 56 days.

Makes the connection86%The first flight arrived more than 11 minutes late on 14% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time64%First flight not cancelled (1.9% are) × connection made (86%) × second flight not cancelled (2.5% are) and within 15 minutes (77%).
Total trip7h 13mBOI 14:04 to MDW 22:17, 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.