Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Buffalo → Chicago via Detroit: arrives on time 79%
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09:03 BUF → 10:18 DTWDL 3639 · Delta, flown by SkyWest · 1h 15m · 89% on time, 0.0% cancelled
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2h 07m layover in Detroit (DTW) · 45 min minimum on one ticket
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12:25 DTW → 12:46 MDWDL 4688 · Delta, flown by Endeavor · 1h 21m · 82% on time, 1.2% cancelled
Total trip 4h 43m, scheduled departure to arrival (Chicago is 1 h behind Buffalo). Times are local. Both flew on 54 of the last 56 days.
Makes the connection97%The first flight arrived more than 82 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 2h 07m layover.
Arrives on time79%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (1.2% are) and within 15 minutes (82%).
Total trip4h 43mBUF 09:03 to MDW 12:46, 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.