Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Buffalo → Chicago via Atlanta: arrives on time 83%
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06:00 BUF → 08:10 ATLDL 2664 · Delta · 2h 10m · 86% on time, 2.5% cancelled
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2h 55m layover in Atlanta (ATL) · 45 min minimum on one ticket
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11:05 ATL → 12:05 MDWDL 2417 · Delta · 2h 00m · 88% on time, 2.6% cancelled
Total trip 7h 05m, scheduled departure to arrival (Chicago is 1 h behind Buffalo). Times are local. Both flew on 55 of the last 56 days.
Makes the connection99%The first flight arrived more than 130 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 55m layover.
Arrives on time83%First flight not cancelled (2.5% are) × connection made (99%) × second flight not cancelled (2.6% are) and within 15 minutes (88%).
Total trip7h 05mBUF 06:00 to MDW 12:05, 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.