Flight Reliability
DL 5691 · Delta Air Lines
Columbus → New York (CMH–LGA)
78
Usually Fine
WanderNerd Reliability Score
- 87%
- Arrive within 15 minutes
- 1 min
- Average arrival delay
- 3.8%
- Cancelled
- 10 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
DL 5691 arrived on time 90% of the time on Wednesdays. On Fridays: 82%.
Better than the CMH–LGA route average.
DL 5691 arrived on time 87% of the time, versus 78% across the CMH–LGA route.
A bit ahead of the Delta Air Lines network.
DL 5691 arrived on time 87% of the time, versus 81% across the Delta Air Lines network.
Keep a backup plan handy.
DL 5691 was cancelled 3.8% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon88%(48 flights)
- Tue86%(49 flights)
- Wed90%(50 flights)
- Thu87%(52 flights)
- Fri82%(51 flights)
- Sat86%(51 flights)
- Sun88%(49 flights)
90%
May
Jun 97% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 97% | 30 |
| July 2025 | 93% | 29 |
| August 2025 | 97% | 31 |
| September 2025 | 93% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 83% | 30 |
| December 2025 | 62% | 29 |
| January 2026 | 82% | 28 |
| February 2026 | 81% | 26 |
| March 2026 | 89% | 26 |
| April 2026 | 83% | 29 |
| May 2026 | 90% | 31 |
- Departures on time
- 90%
- Diverted
- 0.3%
- Flights flown
- 350
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.