Flight profile · Delta Air Lines
DL1011
Atlanta (ATL) to Hartford (BDL) · scheduled 9:40 PM – 11:59 PM
How DL1011 performs
1,090 operations, 2023-07-01 to 2026-06-30.
DL1011 arrived on time 76.0% of the time, against 80.7% for all ATL → BDL flights — this specific departure is 4.7 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 5.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 1,090 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1011 | 76.0% | 1.47% | -1 min | 8.0% | 1,090 |
| Delta Air Lines on ATL → BDL | 81.1% | 1.15% | -3 min | 5.7% | 6,271 |
| All ATL → BDL flights | 80.7% | 1.19% | -3 min | 5.9% | 6,549 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1011 run worse on particular days?
Tuesday is historically the most reliable day and Monday the least, a gap of 13.8 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.
Why DL1011 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DL1011 on ATL → BDL. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on ATL → BDL
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL2951 | Delta Air Lines | 89.0% | 7 min early | 714 |
| DL1082 | Delta Air Lines | 85.2% | 5 min early | 724 |
| DL2739 | Delta Air Lines | 84.7% | 5 min early | 839 |
| DL2735 | Delta Air Lines | 77.3% | 1 min early | 820 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 1,090 records of DL1011 operating ATL → BDL, 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.