Flight Reliability
DL 5299 · Delta Air Lines
New York → Rochester (JFK–ROC)
53
A Little Dicey
WanderNerd Reliability Score
- 73%
- Arrive within 15 minutes
- 19 min
- Average arrival delay
- 5.5%
- Cancelled
- 4 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 5299 arrived on time 80% of the time on Fridays and just 64% on Sundays. That gap is worth planning around.
Lagging the Delta Air Lines network.
DL 5299 arrived on time 73% of the time, versus 81% across the Delta Air Lines network.
Keep a backup plan handy.
DL 5299 was cancelled 5.5% of the time. Typical for U.S. flights is around 1–2%.
Slipping a little lately.
DL 5299 arrived on time 71% of the time over the last three months in the data, compared with 77% in the three months before that.
The breakdown
- Mon71%(45 flights)
- Tue71%(49 flights)
- Wed77%(51 flights)
- Thu74%(50 flights)
- Fri80%(50 flights)
- Sat75%(51 flights)
- Sun64%(47 flights)
70%
May
Jun 50% → May 70% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 50% | 28 |
| July 2025 | 65% | 26 |
| August 2025 | 87% | 30 |
| September 2025 | 80% | 30 |
| October 2025 | 73% | 30 |
| November 2025 | 79% | 28 |
| December 2025 | 55% | 29 |
| January 2026 | 85% | 27 |
| February 2026 | 92% | 25 |
| March 2026 | 67% | 30 |
| April 2026 | 77% | 30 |
| May 2026 | 70% | 30 |
- Departures on time
- 74%
- Diverted
- 0.3%
- Flights flown
- 343
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 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.