Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Detroit → Chicago via Atlanta: arrives on time 73%
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10:25 DTW → 12:25 ATLDL 2856 · Delta · 1h 58m · 86% on time, 0.3% cancelled
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2h 50m layover in Atlanta (ATL) · 45 min minimum on one ticket
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15:15 ATL → 16:15 MDWDL 1728 · Delta · 2h 00m · 77% on time, 2.1% cancelled
Total trip 6h 50m, scheduled departure to arrival (Chicago is 1 h behind Detroit). Times are local. Both flew on 43 of the last 56 days.
Makes the connection98%The first flight arrived more than 125 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 50m layover.
Arrives on time73%First flight not cancelled (0.3% are) × connection made (98%) × second flight not cancelled (2.1% are) and within 15 minutes (77%).
Total trip6h 50mDTW 10:25 to MDW 16:15, 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.