F91229 DEN → SFO

Frontier Airlines · Denver, CO to San Francisco, CA · 162 flights observed, 2025-08-21 to 2026-06-30 · 967 mi

This flight runs much more reliably at some times of day than others — 100% on-time departing 9pm–12am vs. 29% departing 9am–12pm.
On-time arrival
70%
Median delay
-4 min
90th percentile
+46 min
Cancellation rate
0%

How often is F91229 on time?

Across 162 flights on DEN → SFO from 2025-08-21 to 2026-06-30, F91229 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +46 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time11370%
16-30 min149%
31-60 min2717%
61-120 min32%
2+ hrs53%

Performance by month

MonthFlightsOn-timeAvg delay
2025-087100%-11 min
2025-091788%0 min
2025-101872%+10 min
2025-112186%-3 min
2025-121782%+0 min
2026-01989%-13 min
2026-0210100%-15 min
2026-034100%-20 min
2026-041090%+4 min
2026-051958%+17 min
2026-063013%+36 min

Performance by day of week

DayFlightsOn-time
Mon2871%
Tue1560%
Wed1267%
Thu3073%
Fri2875%
Sat1963%
Sun3070%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…