Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Miami → Seattle via Denver: arrives on time 11%
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16:20 MIA → 18:40 DENWN 2926 · Southwest · 4h 20m · 25% on time, 0.0% cancelled
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1h 10m layover in Denver (DEN) · 45 min minimum on one ticket
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19:50 DEN → 21:50 SEAWN 1716 · Southwest · 3h 00m · 33% on time, 0.0% cancelled
Total trip 8h 30m, scheduled departure to arrival (Seattle is 3 h behind Miami). Times are local. Both flew on 47 of the last 56 days.
Makes the connection35%The first flight arrived more than 25 minutes late on 65% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time11%First flight not cancelled (0.0% are) × connection made (35%) × second flight not cancelled (0.0% are) and within 15 minutes (33%).
Total trip8h 30mMIA 16:20 to SEA 21:50, 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.