Flight Reliability
F9 4844 · Frontier Airlines
Raleigh–Durham → Philadelphia (RDU–PHL)
61
A Little Dicey
WanderNerd Reliability Score
- 76%
- Arrive within 15 minutes
- 17 min
- Average arrival delay
- 4.9%
- Cancelled
- 10 min early
- Median arrival delay
Based on 61 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
F9 4844 departing between 6–9 PM arrived on time 82% of the time, versus 50% between 12–3 PM.
Monday is the weak spot.
F9 4844 arrived on time 86% of the time on Fridays. On Mondays: 75%.
The breakdown
- Mon75%(12 flights)
- Tue—(4 flights)
- Wed80%(10 flights)
- Thu—(5 flights)
- Fri86%(14 flights)
- Sat—(7 flights)
- Sun—(6 flights)
- 12–3 PM50%(10 flights)
- 3–6 PM81%(37 flights)
- 6–9 PM82%(11 flights)
85%
May
Mar 85% → May 85% on time
| Month | On-time percentage | Flights |
|---|---|---|
| March 2026 | 85% | 13 |
| April 2026 | 67% | 12 |
| May 2026 | 85% | 20 |
- Departures on time
- 76%
- Diverted
- 0%
- Flights flown
- 58
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 61 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.