Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Houston via Denver: arrives on time 32%
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12:20 SEA → 16:10 DENWN 3616 · Southwest · 2h 50m · 44% on time, 0.0% cancelled
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2h 30m layover in Denver (DEN) · 45 min minimum on one ticket
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18:40 DEN → 22:15 HOUWN 606 · Southwest · 2h 35m · 34% on time, 2.4% cancelled
Total trip 7h 55m, scheduled departure to arrival (Houston is 2 h ahead of Seattle). Times are local. Both flew on 24 of the last 56 days.
Makes the connection96%The first flight arrived more than 105 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 30m layover.
Arrives on time32%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (2.4% are) and within 15 minutes (34%).
Total trip7h 55mSEA 12:20 to HOU 22:15, 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.