Flight Reliability
B6 634 · JetBlue Airways
San Juan → Buffalo (SJU–BUF)83% of its flights flew this route. The rest (SFO–BOS) are included in these numbers.
95
Nerd Approved
WanderNerd Reliability Score
- 87%
- Arrive within 15 minutes
- 7 min early
- Average arrival delay
- 0%
- Cancelled
- 21 min early
- Median arrival delay
Based on 46 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
B6 634 arrived on time 100% of the time on Wednesdays and just 67% on Fridays. That gap is worth planning around.
Better than the JetBlue Airways network average.
B6 634 arrived on time 87% of the time, versus 73% across the JetBlue Airways network.
The breakdown
- Mon90%(10 flights)
- Tue—(1 flights)
- Wed100%(10 flights)
- Thu—(2 flights)
- Fri67%(12 flights)
- Sat90%(10 flights)
- Sun—(1 flights)
- 3–6 PM—(9 flights)
- 6–9 PM89%(37 flights)
- Departures on time
- 83%
- Diverted
- 0%
- Flights flown
- 46
- Months covered
- 4
Keep nerding
Based on 46 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.