Flight profile · Delta Air Lines
DL803
Seattle (SEA) to Dallas–Fort Worth (DFW) · scheduled 9:30 AM – 2:38 PM
How DL803 performs
528 operations, 2024-07-08 to 2026-06-30.
DL803 arrived on time 81.5% of the time, against 76.4% for all SEA → DFW flights — this specific departure is 5.1 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 4.8 points better.
Source: US DOT Bureau of Transportation Statistics · 528 operations between 2024-07-08 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL803 | 81.5% | 0.95% | -8 min | 6.9% | 528 |
| Delta Air Lines on SEA → DFW | 76.7% | 1.44% | -6 min | 8.9% | 1,392 |
| All SEA → DFW flights | 76.4% | 1.68% | -4 min | 6.9% | 15,129 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-07-08 to 2026-06-30
Other routes DL803 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 |
|---|---|---|---|
| DFW→SEA Dallas–Fort Worth to Seattle | 2024-09-09 – 2026-06-28 | 323 | 78.1% |
| LAS→MSP Las Vegas to Minneapolis | 2025-08-11 – 2025-12-19 | 130 | 85.4% |
| PHX→ATL Phoenix to Atlanta | 2025-07-13 – 2025-08-10 | 5 | — |
| LAX→ATL Los Angeles to Atlanta | 2024-05-07 – 2024-06-06 | 31 | — |
| MSP→PIT Minneapolis to Pittsburgh | 2024-04-21 – 2024-05-06 | 16 | — |
| BOS→FLL Boston to Fort Lauderdale | 2024-01-12 – 2024-04-20 | 55 | — |
| BOS→RDU Boston to Raleigh–Durham | 2024-03-12 – 2024-04-06 | 12 | — |
| DTW→ORD Detroit to Chicago | 2024-01-08 – 2024-02-05 | 11 | — |
| LAX→BOS Los Angeles to Boston | 2023-09-10 – 2023-12-30 | 94 | 80.6% |
| PHX→JFK Phoenix to New York | 2023-07-10 – 2023-09-04 | 57 | — |
| ATL→CVG Atlanta to Cincinnati / Covington | 2023-07-01 – 2023-07-08 | 8 | — |
| CVG→ATL Cincinnati / Covington to Atlanta | 2023-07-01 – 2023-07-08 | 8 | — |
Because the same number has served different journeys, the statistics above describe only the route DL803 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 528 records of DL803 operating SEA → DFW, 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.