Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Salt Lake City via Denver: arrives on time 84%
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06:00 SFO → 09:49 DENF9 1230 · Frontier · 2h 49m · 88% on time, 0.9% cancelled
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3h 29m layover in Denver (DEN) · 45 min minimum on one ticket
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13:18 DEN → 14:55 SLCF9 3981 · Frontier · 1h 37m · 86% on time, 0.0% cancelled
Total trip 7h 55m, scheduled departure to arrival (Salt Lake City is 1 h ahead of San Francisco). Times are local. Both flew on 55 of the last 56 days.
Makes the connection99%The first flight arrived more than 164 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 29m layover.
Arrives on time84%First flight not cancelled (0.9% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (86%).
Total trip7h 55mSFO 06:00 to SLC 14:55, 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.