About 1 in 3 F9 4158 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (40%); 1.1% were cancelled. The typical flight landed 1 minutes early.
F9 4158: SFO → LAS
Scheduled to leave San Francisco at 11:20 a.m. local time. Over the past year it arrived on time 60% of the time (279 flights), better than other F9 flights on the route at that hour (32%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 43 | 58% |
| Tuesday | 30 | 43% |
| Wednesday | 29 | 66% |
| Thursday | 44 | 50% |
| Friday | 46 | 59% |
| Saturday | 42 | 86% |
| Sunday | 45 | 58% |
Why it was late
All flights SFO → LAS · Connecting off F9 4158? Check the risk
Questions
How often is F9 4158 from SFO to LAS late?
Frontier Airlines 4158 from San Francisco, CA to Las Vegas, NV arrived 15 or more minutes late, was diverted or was cancelled on 40% of 279 scheduled flights between September 2025 and August 2026. 1.1% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Frontier Airlines for today's flight. Method.