Flight Reliability
DL 2664 · Delta Air Lines
Buffalo → Atlanta (BUF–ATL)
82
Pretty Reliable
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 2.7%
- Cancelled
- 8 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 2664 arrived on time 92% of the time on Wednesdays and just 75% on Sundays. That gap is worth planning around.
A bit ahead of the BUF–ATL route.
DL 2664 arrived on time 86% of the time, versus 81% across the BUF–ATL route.
A bit ahead of the Delta Air Lines network.
DL 2664 arrived on time 86% of the time, versus 81% across the Delta Air Lines network.
Trending in the right direction.
DL 2664 arrived on time 89% of the time over the last three months in the data, compared with 77% in the three months before that.
The breakdown
- Mon80%(49 flights)
- Tue87%(52 flights)
- Wed92%(52 flights)
- Thu90%(51 flights)
- Fri90%(50 flights)
- Sat88%(49 flights)
- Sun75%(51 flights)
90%
May
Jun 93% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 28 |
| July 2025 | 97% | 31 |
| August 2025 | 69% | 29 |
| September 2025 | 97% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 90% | 29 |
| December 2025 | 68% | 31 |
| January 2026 | 79% | 28 |
| February 2026 | 86% | 28 |
| March 2026 | 87% | 30 |
| April 2026 | 90% | 29 |
| May 2026 | 90% | 30 |
- Departures on time
- 89%
- Diverted
- 0.3%
- Flights flown
- 354
- 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.