Flight Reliability
DL 5318 · Delta Air Lines
Rochester → New York (ROC–JFK)
75
Usually Fine
WanderNerd Reliability Score
- 91%
- Arrive within 15 minutes
- 5 min early
- Average arrival delay
- 5.5%
- Cancelled
- 18 min early
- Median arrival delay
Based on 347 historical flights. Data through May 2026.
What the data says
Better than the ROC–JFK route average.
DL 5318 arrived on time 91% of the time, versus 82% across the ROC–JFK route.
Better than the Delta Air Lines network average.
DL 5318 arrived on time 91% of the time, versus 81% across the Delta Air Lines network.
Keep a backup plan handy.
DL 5318 was cancelled 5.5% of the time. Typical for U.S. flights is around 1–2%.
Trending in the right direction.
DL 5318 arrived on time 89% of the time over the last three months in the data, compared with 81% in the three months before that.
The breakdown
- Mon89%(46 flights)
- Tue89%(47 flights)
- Wed92%(48 flights)
- Thu91%(46 flights)
- Fri92%(48 flights)
- Sat91%(46 flights)
- Sun89%(46 flights)
90%
May
Jun 96% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 96% | 28 |
| July 2025 | 90% | 30 |
| August 2025 | 97% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 100% | 30 |
| November 2025 | 89% | 26 |
| December 2025 | 72% | 18 |
| January 2026 | 83% | 23 |
| February 2026 | 87% | 23 |
| March 2026 | 83% | 29 |
| April 2026 | 93% | 29 |
| May 2026 | 90% | 30 |
- Departures on time
- 91%
- Diverted
- 0.3%
- Flights flown
- 327
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 347 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.