Flight Reliability
DL 2420 · Delta Air Lines
Atlanta → New York (ATL–JFK)
95
Nerd Approved
WanderNerd Reliability Score
- 91%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 1.1%
- Cancelled
- 10 min early
- Median arrival delay
Based on 358 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 2420 arrived on time 96% of the time on Thursdays. On Sundays: 88%.
Well ahead of the ATL–JFK route.
DL 2420 arrived on time 91% of the time, versus 74% across the ATL–JFK route.
Better than the Delta Air Lines network average.
DL 2420 arrived on time 91% of the time, versus 81% across the Delta Air Lines network.
Ticking up lately.
DL 2420 arrived on time 95% of the time over the last three months in the data, compared with 88% in the three months before that.
The breakdown
- Mon92%(51 flights)
- Tue90%(51 flights)
- Wed88%(50 flights)
- Thu96%(49 flights)
- Fri94%(51 flights)
- Sat89%(52 flights)
- Sun88%(50 flights)
100%
May
Jun 83% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 30 |
| July 2025 | 83% | 30 |
| August 2025 | 97% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 93% | 29 |
| December 2025 | 82% | 28 |
| January 2026 | 89% | 28 |
| February 2026 | 92% | 25 |
| March 2026 | 90% | 31 |
| April 2026 | 93% | 30 |
| May 2026 | 100% | 31 |
- Departures on time
- 90%
- Diverted
- 0%
- Flights flown
- 354
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 358 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.