Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Tucson → Denver via Seattle: arrives on time 59%
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14:29 TUS → 17:44 SEAAS 641 · Alaska · 3h 15m · 81% on time, 0.6% cancelled
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1h 16m layover in Seattle (SEA) · 45 min minimum on one ticket
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19:00 SEA → 22:45 DENAS 310 · Alaska · 2h 45m · 65% on time, 0.0% cancelled
Total trip 7h 16m, scheduled departure to arrival (Denver is 1 h ahead of Tucson). Times are local. Both flew on 52 of the last 56 days.
Makes the connection91%The first flight arrived more than 31 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 1h 16m layover.
Arrives on time59%First flight not cancelled (0.6% are) × connection made (91%) × second flight not cancelled (0.0% are) and within 15 minutes (65%).
Total trip7h 16mTUS 14:29 to DEN 22:45, 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.