Flight Reliability
B6 803 · JetBlue Airways
New York → San Juan (JFK–SJU)
66
Usually Fine
WanderNerd Reliability Score
- 70%
- Arrive within 15 minutes
- 14 min
- Average arrival delay
- 2.4%
- Cancelled
- 4 min early
- Median arrival delay
Based on 290 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
B6 803 departing between 12–3 PM arrived on time 77% of the time, versus 61% between 9 PM–12 AM.
Sunday scaries are real for this one.
B6 803 arrived on time 78% of the time on Saturdays. On Sundays: 63%.
Ticking up lately.
B6 803 arrived on time 68% of the time over the last three months in the data, compared with 62% in the three months before that.
The breakdown
- Mon73%(40 flights)
- Tue72%(39 flights)
- Wed66%(38 flights)
- Thu67%(42 flights)
- Fri73%(41 flights)
- Sat78%(41 flights)
- Sun63%(41 flights)
- 12–3 PM77%(62 flights)
- 3–6 PM73%(94 flights)
- 6–9 PM73%(40 flights)
- 9 PM–12 AM61%(86 flights)
72%
May
Jun 83% → May 72% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 29 |
| July 2025 | 61% | 31 |
| August 2025 | 74% | 31 |
| September 2025 | 77% | 30 |
| October 2025 | 79% | 24 |
| December 2025 | 69% | 13 |
| January 2026 | 55% | 29 |
| February 2026 | 62% | 21 |
| March 2026 | 58% | 19 |
| April 2026 | 75% | 28 |
| May 2026 | 72% | 18 |
- Departures on time
- 66%
- Diverted
- 0.3%
- Flights flown
- 282
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 290 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.