Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Aspen → San Francisco via Denver: arrives on time 40%
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07:30 ASE → 08:48 DENUA 5766 · United, flown by SkyWest · 1h 18m · 89% on time, 3.9% cancelled
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55m layover in Denver (DEN) · 45 min minimum on one ticket
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09:43 DEN → 11:25 SFOUA 1506 · United · 2h 42m · 48% on time, 0.6% cancelled
Total trip 4h 55m, scheduled departure to arrival (San Francisco is 1 h behind Aspen). Times are local. Both flew on 56 of the last 56 days.
Makes the connection87%The first flight arrived more than 10 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time40%First flight not cancelled (3.9% are) × connection made (87%) × second flight not cancelled (0.6% are) and within 15 minutes (48%).
Total trip4h 55mASE 07:30 to SFO 11:25, 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.