Frontier Airlines
Is F91229 delayed?
Service date: · Scheduled departure date (America/Denver)
Arrived
51 min late
Official source · Updated
Departure
Denver
DEN
Actual
Scheduled 10:23
Sep 2
Arrival
San Francisco
SFO
Actual
Scheduled 12:12
Sep 2
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 44 min late
DEN → SFO
- 55 min late
DEN → SFO
- 50 min late
DEN → SFO
- 23 min late
DEN → SFO
- 3 min early
DEN → SFO
Flight history and details
Aug 20, 2026 — Sep 19, 2026
- Observed arrivals
- 15
- Arrivals over 15 minutes late
- 7
- Observed cancellations
- 0
- Observed occurrences
- 15
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 19, 2026Arrived | Denver | San Francisco | 44 | |
| Sep 18, 2026Arrived | Denver | San Francisco | 55 | |
| Sep 17, 2026Arrived | Denver | San Francisco | 50 | |
| Sep 16, 2026Arrived | Denver | San Francisco | 23 | |
| Sep 15, 2026Arrived | Denver | San Francisco | -3 | |
| Sep 14, 2026Arrived | Denver | San Francisco | -20 | |
| Sep 13, 2026Arrived | Denver | San Francisco | -7 | |
| Sep 12, 2026Arrived | Denver | San Francisco | -20 | |
| Sep 10, 2026Arrived | Denver | San Francisco | -28 | |
| Sep 9, 2026Arrived | Denver | San Francisco | -15 | |
| Sep 8, 2026Arrived | Denver | San Francisco | -19 | |
| Sep 2, 2026Arrived | Denver | San Francisco | 51 | |
| Sep 1, 2026Arrived | Denver | San Francisco | 45 | |
| Aug 26, 2026Arrived | Denver | San Francisco | -20 | |
| Aug 25, 2026Arrived | Denver | San Francisco | 47 |