DL921
DL921 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Atlanta to Dallas-Fort Worth. Of 783 departures recorded from October 2024 to July 2026, 73.0% left on time, according to the US BTS.
- On-time departures73.0%of 783 flights
- Average delay19.2 min
- July 202631▼ 50.0%vs July 2025
- Cancelled1.2%
- 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 | 30 | ▼ 3.2% |
| February | 28 | 31 | ▲ 10.7% |
| March | 54 | 32 | ▼ 40.7% |
| April | 60 | 30 | ▼ 50.0% |
| May | 37 | 31 | ▼ 16.2% |
| June | 53 | 30 | ▼ 43.4% |
| July | 62 | 31 | ▼ 50.0% |
| August | 41 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 325 | 215 | ▼ 33.8% |
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 | 79.3% | 67.9% | ▼ 14.4% |
| February | 67.9% | 80.7% | ▲ 18.8% |
| March | 69.2% | 75.0% | ▲ 8.3% |
| April | 69.0% | 96.7% | ▲ 40.2% |
| May | 67.6% | 73.3% | ▲ 8.5% |
| June | 52.8% | 53.3% | ▲ 0.9% |
| July | 64.5% | 64.5% | 0.0% |
| August | 82.9% | – | – |
| September | 90.0% | – | – |
| October | 93.6% | – | in progress |
| November | 80.0% | – | – |
| December | 56.7% | – | – |
| Year-to-date average (Jan–Jul) | 67.2% | 73.1% | ▲ 8.7% |
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 | 2 | 2 | 0.0% |
| February | 0 | 0 | – |
| March | 2 | 0 | ▼ 100.0% |
| April | 2 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 3 | ▼ 50.0% |
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 98.9% 774
- Cancelled 1.1% 9
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL DFW Hartsfield Jackson Atlanta International Airport – Dallas Fort Worth International Airport | 1,175 | 14.8 min | 76.3% | 656 |
| DFW ATL Dallas Fort Worth International Airport – Hartsfield Jackson Atlanta International Airport | 1,175 | 42.0 min | 56.0% | 127 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 31 | 31 | 67.7% | 0 |
| January 2025 | 31 | 29 | 79.3% | 2 |
| February 2025 | 28 | 28 | 67.9% | 0 |
| March 2025 | 54 | 52 | 69.2% | 2 |
| April 2025 | 60 | 58 | 69.0% | 2 |
| May 2025 | 37 | 37 | 67.6% | 0 |
| June 2025 | 53 | 53 | 52.8% | 0 |
| July 2025 | 62 | 62 | 64.5% | 0 |
| August 2025 | 41 | 41 | 82.9% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 30 | 30 | 80.0% | 0 |
| December 2025 | 30 | 30 | 56.7% | 0 |
| January 2026 | 30 | 28 | 67.9% | 2 |
| February 2026 | 31 | 31 | 80.7% | 0 |
| March 2026 | 32 | 32 | 75.0% | 0 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 31 | 30 | 73.3% | 1 |
| June 2026 | 30 | 30 | 53.3% | 0 |
| July 2026 | 31 | 31 | 64.5% | 0 |