Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → Jacksonville via Chicago: arrives on time 30%
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15:00 DEN → 18:20 MDWWN 1603 · Southwest · 2h 20m · 61% on time, 3.4% cancelled
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1h 00m layover in Chicago (MDW) · 45 min minimum on one ticket
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19:20 MDW → 22:35 JAXWN 2792 · Southwest · 2h 20m · 51% on time, 2.4% cancelled
Total trip 5h 40m, scheduled departure to arrival (Jacksonville is 2 h ahead of Denver). Times are local. Both flew on 40 of the last 56 days.
Makes the connection61%The first flight arrived more than 15 minutes late on 39% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time30%First flight not cancelled (3.4% are) × connection made (61%) × second flight not cancelled (2.4% are) and within 15 minutes (51%).
Total trip5h 40mDEN 15:00 to JAX 22:35, 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.