Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Jacksonville → Denver via Chicago: arrives on time 29%
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19:02 JAX → 20:30 MDWWN 2164 · Southwest · 2h 28m · 62% on time, 6.0% cancelled
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55m layover in Chicago (MDW) · 45 min minimum on one ticket
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21:25 MDW → 23:05 DENWN 2770 · Southwest · 2h 45m · 58% on time, 3.5% cancelled
Total trip 6h 08m, scheduled departure to arrival (Denver is 2 h behind Jacksonville). Times are local. Both flew on 48 of the last 56 days.
Makes the connection55%The first flight arrived more than 10 minutes late on 45% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time29%First flight not cancelled (6.0% are) × connection made (55%) × second flight not cancelled (3.5% are) and within 15 minutes (58%).
Total trip6h 08mJAX 19:02 to DEN 23:05, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.