Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Denver via San Francisco: arrives on time 69%
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05:15 SEA → 07:35 SFOUA 5676 · United, flown by SkyWest · 2h 20m · 87% on time, 0.7% cancelled
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56m layover in San Francisco (SFO) · 45 min minimum on one ticket
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08:31 SFO → 12:22 DENUA 2348 · United · 2h 51m · 84% on time, 0.6% cancelled
Total trip 6h 07m, scheduled departure to arrival (Denver is 1 h ahead of Seattle). Times are local. Both flew on 37 of the last 56 days.
Makes the connection84%The first flight arrived more than 11 minutes late on 16% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time69%First flight not cancelled (0.7% are) × connection made (84%) × second flight not cancelled (0.6% are) and within 15 minutes (84%).
Total trip6h 07mSEA 05:15 to DEN 12:22, 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.