Flight Reliability
F9 1871 · Frontier Airlines
New York → Atlanta (JFK–ATL)
75
Usually Fine
WanderNerd Reliability Score
- 74%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 1.8%
- Cancelled
- 5 min early
- Median arrival delay
Based on 221 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
F9 1871 arrived on time 86% of the time on Thursdays and just 62% on Sundays. That gap is worth planning around.
Recent months have been rougher.
F9 1871 arrived on time 71% of the time over the last three months in the data, compared with 84% in the three months before that.
The breakdown
- Mon79%(33 flights)
- Tue75%(32 flights)
- Wed77%(30 flights)
- Thu86%(28 flights)
- Fri76%(33 flights)
- Sat63%(27 flights)
- Sun62%(34 flights)
90%
Jan
Jun 62% → Jan 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 62% | 29 |
| July 2025 | 74% | 31 |
| August 2025 | 81% | 31 |
| September 2025 | 96% | 22 |
| October 2025 | 75% | 28 |
| November 2025 | 71% | 28 |
| December 2025 | 52% | 29 |
| January 2026 | 90% | 19 |
- Departures on time
- 83%
- Diverted
- 0%
- Flights flown
- 217
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 221 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.