Flight profile · Delta Air Lines
DL870
Seattle (SEA) to Dallas–Fort Worth (DFW) · scheduled 5:55 PM – 11:52 PM
How DL870 performs
677 operations, 2024-07-08 to 2026-06-28.
DL870 arrived on time 73.2% of the time, against 76.4% for all SEA → DFW flights — this specific departure is 3.2 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.5 points worse.
Source: US DOT Bureau of Transportation Statistics · 677 operations between 2024-07-08 to 2026-06-28
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL870 | 73.2% | 2.07% | -4 min | 10.3% | 677 |
| 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 2026-06-28
Other routes DL870 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 |
|---|---|---|---|
| LGA→ATL New York to Atlanta | 2023-07-01 – 2024-06-06 | 217 | 86.6% |
| MSP→SAN Minneapolis to San Diego | 2024-04-11 – 2024-05-06 | 16 | — |
| IAH→LAX Houston to Los Angeles | 2024-03-10 – 2024-04-08 | 26 | — |
| ATL→GSO Atlanta to Greensboro | 2024-02-01 – 2024-03-09 | 36 | — |
| GSO→ATL Greensboro to Atlanta | 2024-02-01 – 2024-03-09 | 36 | — |
| ATL→LAS Atlanta to Las Vegas | 2024-01-08 – 2024-01-08 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route DL870 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 677 records of DL870 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.