Flight Reliability
DL 2865 · Delta Air Lines
Atlanta → Grand Rapids (ATL–GRR)
80
Pretty Reliable
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 1.1%
- Cancelled
- 2 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
DL 2865 arrived on time 87% of the time on Wednesdays and just 71% on Mondays. That gap is worth planning around.
A bit behind the ATL–GRR route.
DL 2865 arrived on time 78% of the time, versus 82% across the ATL–GRR route.
A bit behind the Delta Air Lines network.
DL 2865 arrived on time 78% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon71%(51 flights)
- Tue79%(52 flights)
- Wed87%(52 flights)
- Thu75%(52 flights)
- Fri78%(50 flights)
- Sat78%(51 flights)
- Sun76%(53 flights)
90%
May
Jun 45% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 45% | 29 |
| July 2025 | 65% | 31 |
| August 2025 | 77% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 77% | 30 |
| December 2025 | 68% | 31 |
| January 2026 | 87% | 31 |
| February 2026 | 89% | 28 |
| March 2026 | 79% | 28 |
| April 2026 | 77% | 30 |
| May 2026 | 90% | 31 |
- Departures on time
- 81%
- Diverted
- 0%
- Flights flown
- 361
- 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.