Flight Reliability
B6 435 · JetBlue Airways
Charlotte Amalie → San Juan (STT–SJU)99% of its flights flew this route. The rest (BOS–DCA) are included in these numbers.
- 80%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 0.6%
- Cancelled
- 8 min early
- Median arrival delay
Based on 167 historical flights. Data through May 2026.
What the data says
3–6 PM has a slight edge.
Departures between 3–6 PM arrived on time 83% of the time, against 79% between 12–3 PM.
Thursdays have been rough.
B6 435 arrived on time 89% of the time on Wednesdays and just 69% on Thursdays. That gap is worth planning around.
Better than the STT–SJU route average.
B6 435 arrived on time 80% of the time, versus 73% across the STT–SJU route.
Better than the JetBlue Airways network average.
B6 435 arrived on time 80% of the time, versus 73% across the JetBlue Airways network.
The breakdown
- Mon72%(25 flights)
- Tue78%(18 flights)
- Wed89%(18 flights)
- Thu69%(26 flights)
- Fri85%(26 flights)
- Sat85%(27 flights)
- Sun85%(26 flights)
- 9 AM–12 PM—(2 flights)
- 12–3 PM79%(93 flights)
- 3–6 PM83%(71 flights)
Jun 80% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 30 |
| July 2025 | 74% | 31 |
| August 2025 | 73% | 30 |
| September 2025 | 68% | 22 |
| October 2025 | 94% | 18 |
| May 2026 | 94% | 31 |
- Departures on time
- 80%
- Diverted
- 0%
- Flights flown
- 166
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 167 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.