Flight profile · Delta Air Lines
DL1477
Atlanta (ATL) to Chicago (ORD) · scheduled 1:25 PM – 2:19 PM
How DL1477 performs
946 operations, 2023-07-01 to 2026-06-30.
DL1477 arrived on time 72.3% of the time, against 74.3% for all ATL → ORD flights — this specific departure is 2.0 percentage points worse than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 946 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1477 | 72.3% | 1.06% | 0 min | 7.9% | 946 |
| Delta Air Lines on ATL → ORD | 73.1% | 1.34% | 0 min | 8.0% | 7,474 |
| All ATL → ORD flights | 74.3% | 1.63% | -3 min | 9.3% | 17,984 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1477 run worse on particular days?
Wednesday is historically the most reliable day and Sunday the least, a gap of 7.6 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 DL1477 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 |
|---|---|---|---|
| ORD→ATL Chicago to Atlanta | 2023-07-01 – 2026-06-30 | 884 | 72.2% |
| CLT→DTW Charlotte to Detroit | 2024-01-02 – 2024-01-02 | 1 | — |
| DTW→CLT Detroit to Charlotte | 2024-01-02 – 2024-01-02 | 1 | — |
| CLT→ATL Charlotte to Atlanta | 2023-12-16 – 2023-12-30 | 13 | — |
| ATL→PBI Atlanta to West Palm Beach | 2023-12-07 – 2023-12-15 | 9 | — |
| PBI→ATL West Palm Beach to Atlanta | 2023-12-07 – 2023-12-15 | 9 | — |
| ORD→DTW Chicago to Detroit | 2023-11-05 – 2023-12-06 | 30 | — |
| SLC→OAK Salt Lake City to Oakland | 2023-10-09 – 2023-11-04 | 27 | — |
| SAN→SLC San Diego to Salt Lake City | 2023-09-10 – 2023-10-08 | 22 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1477 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 946 records of DL1477 operating ATL → ORD, 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.