Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Los Angeles → Denver via San Francisco: arrives on time 34%
-
18:57 LAX → 20:30 SFOF9 4593 · Frontier · 1h 38m · 49% on time, 1.7% cancelled
-
1h 09m layover in San Francisco (SFO) · 45 min minimum on one ticket
-
21:39 SFO → 01:34 DEN +1 dayF9 3440 · Frontier · 2h 51m · 61% on time, 0.0% cancelled
Total trip 5h 33m, scheduled departure to arrival (Denver is 1 h ahead of Los Angeles). Times are local. Both flew on 39 of the last 56 days.
Makes the connection57%The first flight arrived more than 24 minutes late on 43% of the days it flew: too late for the 45-minute minimum connection on a 1h 09m layover.
Arrives on time34%First flight not cancelled (1.7% are) × connection made (57%) × second flight not cancelled (0.0% are) and within 15 minutes (61%).
Total trip5h 33mLAX 18:57 to DEN 01:34, 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.