Flight Reliability
F9 1646 · Frontier Airlines
San Francisco → Orlando (SFO–MCO)
25
Bring Snacks
WanderNerd Reliability Score
- 50%
- Arrive within 15 minutes
- 45 min
- Average arrival delay
- 4.0%
- Cancelled
- 12 min
- Median arrival delay
Based on 75 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
F9 1646 arrived on time 64% of the time on Fridays and just 27% on Mondays. That gap is worth planning around.
Well behind the SFO–MCO route.
F9 1646 arrived on time 50% of the time, versus 85% across the SFO–MCO route.
Well behind the Frontier Airlines network.
F9 1646 arrived on time 50% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon27%(11 flights)
- Tue—(9 flights)
- Wed—(9 flights)
- Thu55%(11 flights)
- Fri64%(11 flights)
- Sat46%(11 flights)
- Sun30%(10 flights)
59%
Aug
Jun 42% → Aug 59% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 42% | 26 |
| July 2025 | 52% | 29 |
| August 2025 | 59% | 17 |
- Departures on time
- 51%
- Diverted
- 0%
- Flights flown
- 72
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 75 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.