Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Tucson via Denver: arrives on time 83%
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05:15 SEA → 08:50 DENWN 3615 · Southwest · 2h 35m · 95% on time, 0.0% cancelled
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2h 40m layover in Denver (DEN) · 90 min minimum on separate tickets
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11:30 DEN → 12:32 TUSUA 1188 · United · 2h 02m · 86% on time, 0.0% cancelled
Total trip 7h 17m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.
Makes the connection96%The first flight arrived more than 70 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 2h 40m layover.
Arrives on time83%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (86%).
Total trip7h 17mSEA 05:15 to TUS 12:32, 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.