Flight profile · Delta Air Lines
DL939
Los Angeles (LAX) to New York (JFK) · scheduled 12:00 PM – 9:50 PM
How DL939 performs
668 operations, 2024-06-07 to 2026-06-30.
DL939 arrived on time 73.0% of the time, against 80.1% for all LAX → JFK flights — this specific departure is 7.1 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 6.8 points worse.
Source: US DOT Bureau of Transportation Statistics · 668 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL939 | 73.0% | 0.60% | -6 min | 12.3% | 668 |
| Delta Air Lines on LAX → JFK | 79.8% | 0.86% | -9 min | 7.4% | 9,995 |
| All LAX → JFK flights | 80.1% | 1.08% | -11 min | 8.1% | 30,234 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL939 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.
Because the same number has served different journeys, the statistics above describe only the route DL939 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 668 records of DL939 operating LAX → JFK, 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.