Flight Reliability
DL 773 · Delta Air Lines
New York → Los Angeles (JFK–LAX)
89
Pretty Reliable
WanderNerd Reliability Score
- 84%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 0.8%
- Cancelled
- 7 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
The 6–9 AM departure wins.
DL 773 departing between 6–9 AM arrived on time 100% of the time, versus 83% between 9 AM–12 PM.
Sunday scaries are real for this one.
DL 773 arrived on time 88% of the time on Tuesdays. On Sundays: 74%.
A bit ahead of the JFK–LAX route.
DL 773 arrived on time 84% of the time, versus 79% across the JFK–LAX route.
The breakdown
- Mon86%(50 flights)
- Tue88%(51 flights)
- Wed87%(52 flights)
- Thu82%(51 flights)
- Fri86%(51 flights)
- Sat85%(52 flights)
- Sun74%(53 flights)
- 6–9 AM100%(13 flights)
- 9 AM–12 PM83%(347 flights)
74%
May
Jun 90% → May 74% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 87% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 84% | 31 |
| November 2025 | 80% | 30 |
| December 2025 | 72% | 29 |
| January 2026 | 87% | 30 |
| February 2026 | 85% | 26 |
| March 2026 | 84% | 31 |
| April 2026 | 83% | 30 |
| May 2026 | 74% | 31 |
- Departures on time
- 87%
- Diverted
- 0%
- Flights flown
- 360
- 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.