Flight profile · Delta Air Lines
DL781
New York (JFK) to Las Vegas (LAS) · scheduled 9:15 PM – 12:17 AM
How DL781 performs
569 operations, 2024-01-13 to 2026-06-26.
DL781 arrived on time 74.2% of the time, against 80.2% for all JFK → LAS flights — this specific departure is 6.0 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 7.4 points worse.
Source: US DOT Bureau of Transportation Statistics · 569 operations between 2024-01-13 to 2026-06-26
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL781 | 74.2% | 1.76% | -8 min | 10.2% | 569 |
| Delta Air Lines on JFK → LAS | 81.7% | 1.25% | -13 min | 6.1% | 5,124 |
| All JFK → LAS flights | 80.2% | 1.30% | -12 min | 7.0% | 10,589 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-01-13 to 2026-06-26
Other routes DL781 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 |
|---|---|---|---|
| BTR→ATL Baton Rouge to Atlanta | 2025-12-21 – 2026-01-04 | 13 | — |
| ATL→BTR Atlanta to Baton Rouge | 2025-12-21 – 2026-01-04 | 13 | — |
| LGA→ATL New York to Atlanta | 2025-11-15 – 2025-12-13 | 4 | — |
| LAS→JFK Las Vegas to New York | 2024-06-08 – 2024-09-07 | 40 | — |
| SEA→ANC Seattle to Anchorage | 2024-05-07 – 2024-06-06 | 31 | — |
| RDU→BOS Raleigh–Durham to Boston | 2024-03-16 – 2024-04-06 | 4 | — |
| SAN→ATL San Diego to Atlanta | 2024-03-09 – 2024-03-09 | 1 | — |
| MSP→BIS Minneapolis to Bismarck | 2024-01-08 – 2024-03-08 | 50 | — |
| CVG→ATL Cincinnati / Covington to Atlanta | 2023-12-24 – 2024-01-07 | 3 | — |
| MIA→LGA Miami to New York | 2023-11-05 – 2023-12-15 | 35 | — |
| ATL→DCA Atlanta to Washington | 2023-07-01 – 2023-09-04 | 65 | — |
| DCA→ATL Washington to Atlanta | 2023-07-01 – 2023-09-04 | 64 | — |
Because the same number has served different journeys, the statistics above describe only the route DL781 currently operates. Blending them would produce an average of two different flights.
Why DL781 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DL781 on JFK → LAS. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on JFK → LAS
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| B6411 | JetBlue | 89.9% | 14 min early | 951 |
| B6511 | JetBlue | 87.7% | 16 min early | 602 |
| DL806 | Delta Air Lines | 78.5% | 10 min early | 721 |
| B6711 | JetBlue | 67.1% | 3 min early | 909 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 569 records of DL781 operating JFK → LAS, 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.