Flight profile · Delta Air Lines
DL303
Boston (BOS) to Dallas–Fort Worth (DFW) · scheduled 7:40 PM – 6:04 PM
How DL303 performs
617 operations, 2024-01-08 to 2026-06-30.
DL303 arrived on time 72.8% of the time, against 75.9% for all BOS → 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 2.5 points worse.
Source: US DOT Bureau of Transportation Statistics · 617 operations between 2024-01-08 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL303 | 72.8% | 1.30% | -8 min | 13.0% | 617 |
| Delta Air Lines on BOS → DFW | 75.2% | 1.29% | -8 min | 10.9% | 2,796 |
| All BOS → DFW flights | 75.9% | 2.11% | -9 min | 10.0% | 11,683 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-01-08 to 2026-06-30
Other routes DL303 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→BOS Dallas–Fort Worth to Boston | 2024-02-17 – 2026-06-30 | 531 | 71.8% |
| MCO→LGA Orlando to New York | 2025-12-24 – 2026-01-01 | 4 | — |
| ATL→XNA Atlanta to Fayetteville/Springdale/Rogers | 2025-07-04 – 2025-07-04 | 1 | — |
| ATL→IND Atlanta to Indianapolis | 2024-03-16 – 2024-04-06 | 4 | — |
| SLC→ATL Salt Lake City to Atlanta | 2023-11-05 – 2024-01-07 | 62 | — |
| ONT→SEA Ontario to Seattle | 2023-11-24 – 2023-11-24 | 1 | — |
| SFO→JFK San Francisco to New York | 2023-07-01 – 2023-11-04 | 91 | 78.7% |
| LAX→JFK Los Angeles to New York | 2023-09-05 – 2023-09-15 | 10 | — |
| JFK→SFO New York to San Francisco | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route DL303 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 617 records of DL303 operating BOS → 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.