Flight Reliability
F9 1511 · Frontier Airlines
New York → Dallas–Fort Worth (JFK–DFW)
- 78%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 1.5%
- Cancelled
- 10 min early
- Median arrival delay
Based on 199 historical flights. Data through May 2026.
What the data says
Mornings have a slight edge.
Departures between 9 AM–12 PM arrived on time 83% of the time, against 77% between 12–3 PM.
Saturdays have been rough.
F9 1511 arrived on time 88% of the time on Tuesdays and just 64% on Saturdays. That gap is worth planning around.
A bit ahead of the Frontier Airlines network.
F9 1511 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.
Trending in the right direction.
F9 1511 arrived on time 82% of the time over the last three months in the data, compared with 73% in the three months before that.
The breakdown
- Mon77%(26 flights)
- Tue88%(32 flights)
- Wed84%(25 flights)
- Thu72%(32 flights)
- Fri83%(23 flights)
- Sat64%(28 flights)
- Sun79%(29 flights)
- 9 AM–12 PM83%(23 flights)
- 12–3 PM77%(172 flights)
Jun 77% → Dec 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 77% | 26 |
| July 2025 | 60% | 30 |
| August 2025 | 74% | 31 |
| September 2025 | 86% | 29 |
| October 2025 | 77% | 22 |
| November 2025 | 87% | 30 |
| December 2025 | 82% | 22 |
- Departures on time
- 84%
- Diverted
- 0.5%
- Flights flown
- 195
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 199 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.