Flight Reliability
DL 1436 · Delta Air Lines
ATW → Atlanta (ATW–ATL)
83
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 1.9%
- Cancelled
- 11 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
DL 1436 arrived on time 90% of the time on Sundays. On Fridays: 78%.
Trending in the right direction.
DL 1436 arrived on time 84% of the time over the last three months in the data, compared with 62% in the three months before that.
The breakdown
- Mon84%(49 flights)
- Tue80%(51 flights)
- Wed81%(52 flights)
- Thu87%(52 flights)
- Fri78%(51 flights)
- Sat84%(50 flights)
- Sun90%(51 flights)
90%
May
Jun 100% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 100% | 30 |
| July 2025 | 100% | 31 |
| August 2025 | 94% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 81% | 26 |
| December 2025 | 59% | 29 |
| January 2026 | 45% | 31 |
| February 2026 | 82% | 28 |
| March 2026 | 75% | 28 |
| April 2026 | 87% | 30 |
| May 2026 | 90% | 31 |
- Departures on time
- 88%
- Diverted
- 0.3%
- Flights flown
- 356
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 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.