Flight Reliability
F9 4873 · Frontier Airlines
Fort Lauderdale → Atlanta (FLL–ATL)
68
Usually Fine
WanderNerd Reliability Score
- 68%
- Arrive within 15 minutes
- 25 min
- Average arrival delay
- 0%
- Cancelled
- 6 min
- Median arrival delay
Based on 83 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
F9 4873 departing between 12–3 PM arrived on time 76% of the time, versus 58% between 6–9 AM.
Sunday scaries are real for this one.
F9 4873 arrived on time 85% of the time on Tuesdays and just 50% on Sundays. That gap is worth planning around.
A bit behind the FLL–ATL route.
F9 4873 arrived on time 68% of the time, versus 72% across the FLL–ATL route.
A bit behind the Frontier Airlines network.
F9 4873 arrived on time 68% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon77%(13 flights)
- Tue85%(13 flights)
- Wed—(9 flights)
- Thu58%(12 flights)
- Fri77%(13 flights)
- Sat—(9 flights)
- Sun50%(14 flights)
- 6–9 AM58%(12 flights)
- 9 AM–12 PM68%(40 flights)
- 12–3 PM76%(21 flights)
- 3–6 PM—(8 flights)
- 6–9 PM—(2 flights)
77%
Apr
Feb 65% → Apr 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| February 2026 | 65% | 23 |
| March 2026 | 58% | 24 |
| April 2026 | 77% | 22 |
- Departures on time
- 57%
- Diverted
- 0%
- Flights flown
- 83
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 83 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.