Flight profile · Delta Air Lines
DL1099
Atlanta (ATL) to Tampa (TPA) · scheduled 11:00 AM – 12:30 PM
How DL1099 performs
1,075 operations, 2023-07-01 to 2026-06-30.
DL1099 arrived on time 83.1% of the time, against 74.1% for all ATL → TPA flights — this specific departure is 9.1 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 7.9 points better.
Source: US DOT Bureau of Transportation Statistics · 1,075 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1099 | 83.1% | 1.58% | -5 min | 4.6% | 1,075 |
| Delta Air Lines on ATL → TPA | 75.3% | 1.50% | -2 min | 8.1% | 13,095 |
| All ATL → TPA flights | 74.1% | 1.65% | -2 min | 9.0% | 19,404 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1099 run worse on particular days?
Wednesday is historically the most reliable day and Sunday the least, a gap of 13.3 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes DL1099 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| TPA→ATL Tampa to Atlanta | 2023-07-01 – 2026-06-30 | 1,066 | 79.9% |
| RIC→ATL Richmond to Atlanta | 2023-10-09 – 2023-10-22 | 8 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1099 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 1,075 records of DL1099 operating ATL → TPA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.