DL2637
DL2637 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Nashville to Atlanta. Of 635 departures recorded from October 2024 to July 2026, 95.7% left on time, according to the US BTS.
- On-time departures95.7%of 635 flights
- Average delay-0.9 min
- July 202631▲ 6.9%vs July 2025
- Cancelled2.2%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 27 | ▼ 12.9% |
| February | 28 | 26 | ▼ 7.1% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 27 | 30 | ▲ 11.1% |
| July | 29 | 31 | ▲ 6.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 28 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 207 | 206 | ▼ 0.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 90.0% | 100.0% | ▲ 11.1% |
| February | 96.4% | 96.0% | ▼ 0.4% |
| March | 100.0% | 86.7% | ▼ 13.3% |
| April | 96.6% | 93.3% | ▼ 3.3% |
| May | 96.8% | 96.6% | ▼ 0.2% |
| June | 100.0% | 90.0% | ▼ 10.0% |
| July | 96.6% | 93.6% | ▼ 3.1% |
| August | 96.8% | – | – |
| September | 100.0% | – | – |
| October | 93.6% | – | in progress |
| November | 100.0% | – | – |
| December | 92.9% | – | – |
| Year-to-date average (Jan–Jul) | 96.6% | 93.7% | ▼ 3.0% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 3 | ▲ 200.0% |
| February | 0 | 1 | – |
| March | 1 | 1 | 0.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 2 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 4 | 7 | ▲ 75.0% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 97.8% 621
- Cancelled 2.2% 14
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BNA ATL Nashville International Airport – Hartsfield Jackson Atlanta International Airport | 344 | -1.5 min | 95.9% | 624 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 100.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 31 | 31 | 100.0% | 0 |
| January 2025 | 31 | 30 | 90.0% | 1 |
| February 2025 | 28 | 28 | 96.4% | 0 |
| March 2025 | 31 | 30 | 100.0% | 1 |
| April 2025 | 30 | 29 | 96.6% | 1 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 27 | 26 | 100.0% | 1 |
| July 2025 | 29 | 29 | 96.6% | 0 |
| August 2025 | 31 | 31 | 96.8% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 28 | 26 | 100.0% | 2 |
| December 2025 | 29 | 28 | 92.9% | 1 |
| January 2026 | 27 | 24 | 100.0% | 3 |
| February 2026 | 26 | 25 | 96.0% | 1 |
| March 2026 | 31 | 30 | 86.7% | 1 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 29 | 96.6% | 2 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 31 | 31 | 93.6% | 0 |