Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → St Louis via Denver: arrives on time 75%
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08:31 SFO → 12:22 DENUA 2348 · United · 2h 51m · 84% on time, 0.6% cancelled
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1h 03m layover in Denver (DEN) · 45 min minimum on one ticket
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13:25 DEN → 16:33 STLUA 1639 · United · 2h 08m · 87% on time, 0.0% cancelled
Total trip 6h 02m, scheduled departure to arrival (St Louis is 2 h ahead of San Francisco). Times are local. Both flew on 55 of the last 56 days.
Makes the connection87%The first flight arrived more than 18 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 1h 03m layover.
Arrives on time75%First flight not cancelled (0.6% are) × connection made (87%) × second flight not cancelled (0.0% are) and within 15 minutes (87%).
Total trip6h 02mSFO 08:31 to STL 16:33, 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.