Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → San Diego via Atlanta: arrives on time 82%
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08:55 MDW → 11:45 ATLWN 4154 · Southwest · 1h 50m · 86% on time, 0.0% cancelled
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3h 51m layover in Atlanta (ATL) · 90 min minimum on separate tickets
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15:36 ATL → 17:00 SANDL 843 · Delta · 4h 25m · 82% on time, 0.3% cancelled
Total trip 10h 06m, scheduled departure to arrival (San Diego is 2 h behind Chicago). Times are local. Both flew on 35 of the last 56 days.
Makes the connection100%The first flight arrived more than 141 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 51m layover.
Arrives on time82%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.3% are) and within 15 minutes (82%).
Total trip10h 06mMDW 08:55 to SAN 17:00, 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.