Flight profile · Delta Air Lines
DL1237
Sioux Falls (FSD) to Atlanta (ATL) · scheduled 5:20 AM – 9:00 AM
How DL1237 performs
812 operations, 2024-03-10 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 812 operations between 2024-03-10 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1237 | 83.1% | 1.35% | -9 min | 6.3% | 812 |
| Delta Air Lines on FSD → ATL | 82.8% | 1.28% | -8 min | 6.5% | 1,095 |
| All FSD → ATL flights | 82.7% | 1.28% | -8 min | 6.5% | 1,098 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-03-10 to 2026-06-30
Other routes DL1237 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 |
|---|---|---|---|
| SLC→MSY Salt Lake City to New Orleans | 2024-05-07 – 2024-06-06 | 31 | — |
| DEN→SLC Denver to Salt Lake City | 2024-01-08 – 2024-03-08 | 47 | — |
| SLC→DEN Salt Lake City to Denver | 2024-01-08 – 2024-03-08 | 47 | — |
| JAN→ATL Jackson to Atlanta | 2023-12-16 – 2023-12-23 | 8 | — |
| ORD→SLC Chicago to Salt Lake City | 2023-12-07 – 2023-12-15 | 8 | — |
| SLC→ORD Salt Lake City to Chicago | 2023-12-07 – 2023-12-15 | 8 | — |
| LGA→RSW New York to Fort Myers | 2023-09-05 – 2023-12-06 | 92 | 72.2% |
| JFK→RSW New York to Fort Myers | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1237 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 812 records of DL1237 operating FSD → ATL, 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.