Flight profile · Delta Air Lines
DL1156
Austin (AUS) to Boston (BOS) · scheduled 2:25 PM – 6:54 PM
How DL1156 performs
419 operations, 2025-03-09 to 2026-06-30.
DL1156 arrived on time 58.5% of the time, against 71.4% for all AUS → BOS flights — this specific departure is 12.9 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 17.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 419 operations between 2025-03-09 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1156 | 58.5% | 1.19% | 7 min | 21.8% | 419 |
| Delta Air Lines on AUS → BOS | 75.7% | 1.86% | -7 min | 11.1% | 2,641 |
| All AUS → BOS flights | 71.4% | 1.53% | -4 min | 12.6% | 4,776 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-03-09 to 2026-06-30
Other routes DL1156 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 |
|---|---|---|---|
| TYS→ATL Knoxville/Maryville to Atlanta | 2026-01-05 – 2026-03-06 | 24 | — |
| ATL→TYS Atlanta to Knoxville/Maryville | 2026-02-12 – 2026-03-06 | 13 | — |
| DTW→RSW Detroit to Fort Myers | 2025-12-21 – 2026-01-04 | 9 | — |
| ATL→CHA Atlanta to Chattanooga | 2024-05-07 – 2025-03-07 | 86 | — |
| JAC→MSP Jackson to Minneapolis | 2024-12-21 – 2025-01-05 | 16 | — |
| MSP→JAC Minneapolis to Jackson | 2024-12-21 – 2025-01-05 | 16 | — |
| IAH→ATL Houston to Atlanta | 2024-11-11 – 2024-12-18 | 35 | — |
| LGA→CHS New York to Charleston | 2024-12-07 – 2024-12-14 | 2 | — |
| MSO→SLC Missoula to Salt Lake City | 2024-06-07 – 2024-09-08 | 94 | 91.3% |
| ATL→PNS Atlanta to Pensacola | 2024-01-08 – 2024-05-06 | 120 | 79.2% |
| ATL→OMA Atlanta to Omaha | 2023-12-16 – 2023-12-31 | 16 | — |
| DAL→LAX Dallas to Los Angeles | 2023-09-09 – 2023-12-15 | 98 | 88.8% |
| CVG→SLC Cincinnati / Covington to Salt Lake City | 2023-07-01 – 2023-09-04 | 59 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1156 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 419 records of DL1156 operating AUS → BOS, 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.