Flight Reliability
B6 2904 · JetBlue Airways
San Juan → New York (SJU–JFK)
88
Pretty Reliable
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 1 min
- Average arrival delay
- 1.2%
- Cancelled
- 10 min early
- Median arrival delay
Based on 164 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
B6 2904 arrived on time 92% of the time on Sundays and just 73% on Mondays. That gap is worth planning around.
A bit ahead of the SJU–JFK route.
B6 2904 arrived on time 85% of the time, versus 80% across the SJU–JFK route.
Better than the JetBlue Airways network average.
B6 2904 arrived on time 85% of the time, versus 73% across the JetBlue Airways network.
Trending in the right direction.
B6 2904 arrived on time 94% of the time over the last three months in the data, compared with 80% in the three months before that.
The breakdown
- Mon73%(22 flights)
- Tue86%(22 flights)
- Wed91%(23 flights)
- Thu79%(24 flights)
- Fri79%(24 flights)
- Sat91%(23 flights)
- Sun92%(24 flights)
- 6–9 AM85%(156 flights)
- 6–9 PM—(6 flights)
100%
May
Jun 83% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 30 |
| July 2025 | 80% | 30 |
| August 2025 | 77% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 96% | 24 |
| May 2026 | 100% | 11 |
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 162
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 164 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.