Flight Reliability
DL 934 · Delta Air Lines
Los Angeles → New York (LAX–JFK)
89
Pretty Reliable
WanderNerd Reliability Score
- 89%
- Arrive within 15 minutes
- 1 min
- Average arrival delay
- 1.9%
- Cancelled
- 13 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Wednesdays have been rough.
DL 934 arrived on time 96% of the time on Fridays and just 81% on Wednesdays. That gap is worth planning around.
Better than the LAX–JFK route average.
DL 934 arrived on time 89% of the time, versus 79% across the LAX–JFK route.
Better than the Delta Air Lines network average.
DL 934 arrived on time 89% of the time, versus 81% across the Delta Air Lines network.
Ticking up lately.
DL 934 arrived on time 92% of the time over the last three months in the data, compared with 86% in the three months before that.
The breakdown
- Mon84%(51 flights)
- Tue84%(51 flights)
- Wed81%(52 flights)
- Thu90%(51 flights)
- Fri96%(51 flights)
- Sat92%(52 flights)
- Sun92%(50 flights)
97%
May
Jun 80% → May 97% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 30 |
| July 2025 | 90% | 30 |
| August 2025 | 94% | 31 |
| September 2025 | 83% | 29 |
| October 2025 | 87% | 31 |
| November 2025 | 93% | 30 |
| December 2025 | 90% | 31 |
| January 2026 | 87% | 30 |
| February 2026 | 80% | 25 |
| March 2026 | 90% | 31 |
| April 2026 | 90% | 30 |
| May 2026 | 97% | 30 |
- Departures on time
- 88%
- Diverted
- 0%
- Flights flown
- 358
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.