Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → San Diego via Denver: arrives on time 87%
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05:00 ORD → 06:42 DENUA 2666 · United · 2h 42m · 98% on time, 0.6% cancelled
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1h 01m layover in Denver (DEN) · 45 min minimum on one ticket
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07:43 DEN → 09:05 SANUA 2309 · United · 2h 22m · 90% on time, 0.3% cancelled
Total trip 6h 05m, scheduled departure to arrival (San Diego is 2 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection98%The first flight arrived more than 16 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time87%First flight not cancelled (0.6% are) × connection made (98%) × second flight not cancelled (0.3% are) and within 15 minutes (90%).
Total trip6h 05mORD 05:00 to SAN 09:05, 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.