Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Jacksonville → St Louis via Chicago: arrives on time 59%
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11:30 JAX → 13:15 ORDUA 1239 · United · 2h 45m · 82% on time, 0.7% cancelled
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1h 05m layover in Chicago (ORD) · 45 min minimum on one ticket
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14:20 ORD → 15:46 STLUA 2000 · United · 1h 26m · 68% on time, 0.0% cancelled
Total trip 5h 16m, scheduled departure to arrival (St Louis is 1 h behind Jacksonville). Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.
Makes the connection87%The first flight arrived more than 20 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time59%First flight not cancelled (0.7% are) × connection made (87%) × second flight not cancelled (0.0% are) and within 15 minutes (68%).
Total trip5h 16mJAX 11:30 to STL 15:46, 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.