Flight Reliability
B6 1221 · JetBlue Airways
Boston → West Palm Beach (BOS–PBI)
63
A Little Dicey
WanderNerd Reliability Score
- 77%
- Arrive within 15 minutes
- 1 min
- Average arrival delay
- 5.4%
- Cancelled
- 10 min early
- Median arrival delay
Based on 37 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
B6 1221 departing between 12–3 PM arrived on time 88% of the time, versus 71% between 6–9 AM.
Better than the BOS–PBI route average.
B6 1221 arrived on time 77% of the time, versus 67% across the BOS–PBI route.
A bit ahead of the JetBlue Airways network.
B6 1221 arrived on time 77% of the time, versus 73% across the JetBlue Airways network.
The breakdown
- Mon—(6 flights)
- Tue—(5 flights)
- Wed—(6 flights)
- Thu—(4 flights)
- Fri—(5 flights)
- Sat—(3 flights)
- Sun—(6 flights)
- 6–9 AM71%(17 flights)
- 12–3 PM88%(17 flights)
- 3–6 PM—(1 flights)
- Departures on time
- 80%
- Diverted
- 0%
- Flights flown
- 35
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 37 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.