Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → Arcata/Eureka via San Francisco: arrives on time 47%
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07:40 DEN → 09:18 SFOUA 2391 · United · 2h 38m · 71% on time, 0.6% cancelled
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57m layover in San Francisco (SFO) · 45 min minimum on one ticket
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10:15 SFO → 11:42 ACVUA 4708 · United, flown by SkyWest · 1h 27m · 71% on time, 0.8% cancelled
Total trip 5h 02m, scheduled departure to arrival (Arcata/Eureka is 1 h behind Denver). Times are local. Both flew on 56 of the last 56 days.
Makes the connection67%The first flight arrived more than 12 minutes late on 33% of the days it flew: too late for the 45-minute minimum connection on a 57m layover.
Arrives on time47%First flight not cancelled (0.6% are) × connection made (67%) × second flight not cancelled (0.8% are) and within 15 minutes (71%).
Total trip5h 02mDEN 07:40 to ACV 11:42, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.