Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Dallas via Denver: arrives on time 90%
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21:39 SFO → 01:34 DENF9 3440 · Frontier · 2h 51m · 61% on time, 0.0% cancelled
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3h 36m layover in Denver (DEN) · 90 min minimum on separate tickets
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05:10 DEN → 08:05 DAL +1 dayWN 1078 · Southwest · 1h 55m · 98% on time, 2.0% cancelled
Total trip 8h 26m, scheduled departure to arrival (Dallas is 2 h ahead of San Francisco). Times are local. Both flew on 31 of the last 56 days.
Makes the connection94%The first flight arrived more than 126 minutes late on 6% of the days it flew: too late for the 90-minute minimum connection on a 3h 36m layover.
Arrives on time90%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (2.0% are) and within 15 minutes (98%).
Total trip8h 26mSFO 21:39 to DAL 08:05, 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.