Flight Reliability
DL 636 · Delta Air Lines
New York → Honolulu (JFK–HNL)
79
Usually Fine
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 1.3%
- Cancelled
- 5 min early
- Median arrival delay
Based on 297 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 636 arrived on time 88% of the time on Mondays and just 66% on Sundays. That gap is worth planning around.
A bit ahead of the JFK–HNL route.
DL 636 arrived on time 78% of the time, versus 71% across the JFK–HNL route.
A bit behind the Delta Air Lines network.
DL 636 arrived on time 78% of the time, versus 81% across the Delta Air Lines network.
Trending in the right direction.
DL 636 arrived on time 74% of the time over the last three months in the data, compared with 66% in the three months before that.
The breakdown
- Mon88%(43 flights)
- Tue84%(32 flights)
- Wed80%(25 flights)
- Thu78%(51 flights)
- Fri78%(45 flights)
- Sat73%(52 flights)
- Sun66%(44 flights)
87%
May
Jun 93% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 74% | 31 |
| August 2025 | 87% | 31 |
| September 2025 | 95% | 20 |
| October 2025 | 77% | 17 |
| November 2025 | 77% | 17 |
| December 2025 | 68% | 22 |
| January 2026 | 67% | 21 |
| February 2026 | 63% | 19 |
| March 2026 | 65% | 23 |
| April 2026 | 70% | 30 |
| May 2026 | 87% | 31 |
- Departures on time
- 87%
- Diverted
- 0.3%
- Flights flown
- 292
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 297 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.