Flight Reliability
F9 3804 · Frontier Airlines
Denver → Fort Myers (DEN–RSW)
78
Usually Fine
WanderNerd Reliability Score
- 77%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 1.7%
- Cancelled
- 13 min early
- Median arrival delay
Based on 58 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
F9 3804 arrived on time 100% of the time on Mondays and just 64% on Sundays. That gap is worth planning around.
A bit ahead of the Frontier Airlines network.
F9 3804 arrived on time 77% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon100%(10 flights)
- Tue—(2 flights)
- Wed—(1 flights)
- Thu85%(13 flights)
- Fri—(7 flights)
- Sat70%(10 flights)
- Sun64%(14 flights)
- 9 AM–12 PM77%(51 flights)
- 12–3 PM—(6 flights)
- Departures on time
- 83%
- Diverted
- 0%
- Flights flown
- 57
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 58 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.