Flight Reliability
B6 521 · JetBlue Airways
Boston → West Palm Beach (BOS–PBI)
61
A Little Dicey
WanderNerd Reliability Score
- 56%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 0%
- Cancelled
- 11 min
- Median arrival delay
Based on 59 historical flights. Data through May 2026.
What the data says
Lagging the BOS–PBI route.
B6 521 arrived on time 56% of the time, versus 67% across the BOS–PBI route.
Well behind the JetBlue Airways network.
B6 521 arrived on time 56% of the time, versus 73% across the JetBlue Airways network.
The breakdown
- Mon—(9 flights)
- Tue—(9 flights)
- Wed—(9 flights)
- Thu—(8 flights)
- Fri—(8 flights)
- Sat—(8 flights)
- Sun—(8 flights)
- Departures on time
- 59%
- Diverted
- 0%
- Flights flown
- 59
- Months covered
- 2
Same route, other flights
Keep nerding
Based on 59 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.