DL1099
DL1099 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Tampa to Atlanta. Of 1,311 departures recorded from October 2024 to July 2026, 80.7% left on time, according to the US BTS.
- On-time departures80.7%of 1,311 flights
- Average delay11.5 min
- July 202662▲ 0.0%vs July 2025
- Cancelled1.5%
- 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 | 62 | 61 | ▼ 1.6% |
| February | 56 | 56 | 0.0% |
| March | 62 | 62 | 0.0% |
| April | 58 | 60 | ▲ 3.4% |
| May | 62 | 62 | 0.0% |
| June | 60 | 60 | 0.0% |
| July | 62 | 62 | 0.0% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 61 | – | in progress |
| November | 60 | – | – |
| December | 61 | – | – |
| Year to date (Jan–Jul) | 422 | 423 | ▲ 0.2% |
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 | 74.1% | 71.2% | ▼ 4.0% |
| February | 75.0% | 82.1% | ▲ 9.5% |
| March | 75.4% | 70.4% | ▼ 6.7% |
| April | 77.6% | 91.4% | ▲ 17.8% |
| May | 85.5% | 70.5% | ▼ 17.5% |
| June | 85.0% | 93.3% | ▲ 9.8% |
| July | 75.8% | 76.7% | ▲ 1.1% |
| August | 87.1% | – | – |
| September | 90.0% | – | – |
| October | 88.5% | – | in progress |
| November | 93.3% | – | – |
| December | 72.1% | – | – |
| Year-to-date average (Jan–Jul) | 78.3% | 79.4% | ▲ 1.3% |
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 | 4 | 2 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 1 | 8 | ▲ 700.0% |
| April | 0 | 2 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 2 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 15 | ▲ 200.0% |
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 98.5% 1,291
- Cancelled 1.5% 20
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 |
|---|---|---|---|---|
| TPA ATL Tampa International Airport – Hartsfield Jackson Atlanta International Airport | 655 | 14.5 min | 80.2% | 656 |
| ATL TPA Hartsfield Jackson Atlanta International Airport – Tampa International Airport | 655 | 8.4 min | 81.2% | 655 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 95.0% | 0 |
| November 2024 | 60 | 60 | 85.0% | 0 |
| December 2024 | 62 | 62 | 64.5% | 0 |
| January 2025 | 62 | 58 | 74.1% | 4 |
| February 2025 | 56 | 56 | 75.0% | 0 |
| March 2025 | 62 | 61 | 75.4% | 1 |
| April 2025 | 58 | 58 | 77.6% | 0 |
| May 2025 | 62 | 62 | 85.5% | 0 |
| June 2025 | 60 | 60 | 85.0% | 0 |
| July 2025 | 62 | 62 | 75.8% | 0 |
| August 2025 | 62 | 62 | 87.1% | 0 |
| September 2025 | 60 | 60 | 90.0% | 0 |
| October 2025 | 61 | 61 | 88.5% | 0 |
| November 2025 | 60 | 60 | 93.3% | 0 |
| December 2025 | 61 | 61 | 72.1% | 0 |
| January 2026 | 61 | 59 | 71.2% | 2 |
| February 2026 | 56 | 56 | 82.1% | 0 |
| March 2026 | 62 | 54 | 70.4% | 8 |
| April 2026 | 60 | 58 | 91.4% | 2 |
| May 2026 | 62 | 61 | 70.5% | 1 |
| June 2026 | 60 | 60 | 93.3% | 0 |
| July 2026 | 62 | 60 | 76.7% | 2 |