Flight profile · Delta Air Lines
DL2123
Atlanta (ATL) to Syracuse (SYR) · scheduled 9:50 PM – 11:59 PM
How DL2123 performs
1,096 operations, 2023-07-01 to 2026-06-30.
DL2123 arrived on time 74.4% of the time, against 79.0% for all ATL → SYR flights — this specific departure is 4.6 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 5.5 points worse.
Source: US DOT Bureau of Transportation Statistics · 1,096 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL2123 | 74.4% | 1.73% | -3 min | 8.8% | 1,096 |
| Delta Air Lines on ATL → SYR | 79.8% | 1.33% | -4 min | 6.0% | 3,083 |
| All ATL → SYR flights | 79.0% | 1.48% | -4 min | 6.4% | 3,184 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL2123 run worse on particular days?
Tuesday is historically the most reliable day and Sunday the least, a gap of 21.3 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.
Why DL2123 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 DL2123 on ATL → SYR. 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 → SYR
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL1375 | Delta Air Lines | 86.3% | 7 min early | 1,025 |
| DL2690 | Delta Air Lines | 78.3% | 2 min early | 864 |
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 1,096 records of DL2123 operating ATL → SYR, 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.
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