Flight Reliability
DL 309 · Delta Air Lines
Honolulu → Atlanta (HNL–ATL)
87
Pretty Reliable
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 0.5%
- Cancelled
- 8 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Tuesday has been the better bet.
A small edge: 87% on time on Tuesdays against 80% on Sundays.
Trending in the right direction.
DL 309 arrived on time 81% of the time over the last three months in the data, compared with 72% in the three months before that.
The breakdown
- Mon83%(52 flights)
- Tue87%(52 flights)
- Wed81%(52 flights)
- Thu83%(52 flights)
- Fri83%(52 flights)
- Sat81%(52 flights)
- Sun80%(50 flights)
94%
May
Jun 90% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 84% | 31 |
| November 2025 | 87% | 30 |
| December 2025 | 70% | 30 |
| January 2026 | 71% | 31 |
| February 2026 | 75% | 28 |
| March 2026 | 60% | 30 |
| April 2026 | 90% | 29 |
| May 2026 | 94% | 31 |
- Departures on time
- 80%
- Diverted
- 0.3%
- Flights flown
- 362
- 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.