Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Sacramento via San Francisco: arrives on time 55%
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13:30 SEA → 15:48 SFOUA 737 · United · 2h 18m · 56% on time, 0.6% cancelled
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1h 20m layover in San Francisco (SFO) · 45 min minimum on one ticket
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17:08 SFO → 18:16 SMFUA 5796 · United, flown by SkyWest · 1h 08m · 78% on time, 3.1% cancelled
Total trip 4h 46m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.
Makes the connection73%The first flight arrived more than 35 minutes late on 27% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time55%First flight not cancelled (0.6% are) × connection made (73%) × second flight not cancelled (3.1% are) and within 15 minutes (78%).
Total trip4h 46mSEA 13:30 to SMF 18:16, 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.