Flight Reliability
DL 333 · Delta Air Lines
Las Vegas → New York (LAS–JFK)
79
Usually Fine
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 1.9%
- Cancelled
- 14 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Mornings have a slight edge.
Departures between 6–9 AM arrived on time 87% of the time, against 83% between 9 AM–12 PM.
Mondays have been rough.
DL 333 arrived on time 92% of the time on Saturdays and just 64% on Mondays. That gap is worth planning around.
The breakdown
- Mon64%(50 flights)
- Tue82%(51 flights)
- Wed81%(52 flights)
- Thu86%(49 flights)
- Fri90%(50 flights)
- Sat92%(51 flights)
- Sun84%(49 flights)
- 6–9 AM87%(15 flights)
- 9 AM–12 PM83%(337 flights)
90%
May
Jun 68% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 68% | 28 |
| July 2025 | 66% | 29 |
| August 2025 | 81% | 31 |
| September 2025 | 83% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 89% | 27 |
| December 2025 | 86% | 29 |
| January 2026 | 83% | 30 |
| February 2026 | 89% | 26 |
| March 2026 | 84% | 31 |
| April 2026 | 87% | 30 |
| May 2026 | 90% | 30 |
- Departures on time
- 78%
- Diverted
- 1.1%
- Flights flown
- 352
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 363 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.