Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Key West → Chicago via Miami: arrives on time 57%
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19:40 EYW → 20:30 MIAAA 3517 · American, flown by Envoy · 50m · 77% on time, 0.0% cancelled
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56m layover in Miami (MIA) · 45 min minimum on one ticket
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21:26 MIA → 23:57 ORDAA 483 · American · 3h 23m · 79% on time, 1.1% cancelled
Total trip 5h 09m, scheduled departure to arrival (Chicago is 1 h behind Key West). Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.
Makes the connection73%The first flight arrived more than 11 minutes late on 27% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time57%First flight not cancelled (0.0% are) × connection made (73%) × second flight not cancelled (1.1% are) and within 15 minutes (79%).
Total trip5h 09mEYW 19:40 to ORD 23:57, 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.