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

Bozeman → Chicago via Atlanta: arrives on time 65%

14:21 BZN → 20:14 ATL

DL 406 · Delta · 3h 56m · 87% on time, 0.8% cancelled
1h 01m layover in Atlanta (ATL) · 45 min minimum on one ticket
21:15 ATL → 22:17 MDW

DL 1076 · Delta · 2h 02m · 77% on time, 2.5% cancelled

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

Makes the connection87%The first flight arrived more than 16 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.

Arrives on time65%First flight not cancelled (0.8% are) × connection made (87%) × second flight not cancelled (2.5% are) and within 15 minutes (77%).

Total trip6h 56mBZN 14:21 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.