Flight profile · Delta Air Lines
DL903
Atlanta (ATL) to Seattle (SEA) · scheduled 9:25 PM – 11:59 PM
How DL903 performs
741 operations, 2023-07-01 to 2026-06-30.
DL903 arrived on time 79.1% of the time, against 80.4% for all ATL → SEA flights — this specific departure is 1.2 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.0 points worse.
Source: US DOT Bureau of Transportation Statistics · 741 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL903 | 79.1% | 1.08% | -8 min | 6.8% | 741 |
| Delta Air Lines on ATL → SEA | 82.1% | 0.67% | -8 min | 4.4% | 7,193 |
| All ATL → SEA flights | 80.4% | 0.82% | -7 min | 4.8% | 10,247 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
Other routes DL903 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 |
|---|---|---|---|
| ATL→BWI Atlanta to Baltimore | 2026-01-05 – 2026-03-07 | 42 | — |
| ORD→ATL Chicago to Atlanta | 2025-08-05 – 2025-08-05 | 1 | — |
| ATL→CHA Atlanta to Chattanooga | 2025-01-11 – 2025-03-08 | 23 | — |
| IAH→SLC Houston to Salt Lake City | 2024-11-11 – 2024-12-18 | 33 | — |
| JFK→DFW New York to Dallas–Fort Worth | 2024-05-07 – 2024-06-06 | 31 | — |
| DFW→LGA Dallas–Fort Worth to New York | 2024-04-09 – 2024-05-06 | 24 | — |
| LGA→DFW New York to Dallas–Fort Worth | 2024-04-09 – 2024-05-06 | 24 | — |
| ORD→LGA Chicago to New York | 2024-03-11 – 2024-04-08 | 21 | — |
| LAS→JFK Las Vegas to New York | 2024-03-16 – 2024-04-06 | 4 | — |
Because the same number has served different journeys, the statistics above describe only the route DL903 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 741 records of DL903 operating ATL → SEA, 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.