Flight Reliability
B6 390 · JetBlue Airways
San Juan → Newark (SJU–EWR)
66
Usually Fine
WanderNerd Reliability Score
- 72%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 2.6%
- Cancelled
- 0 min
- Median arrival delay
Based on 189 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
B6 390 departing between 9 AM–12 PM arrived on time 93% of the time, versus 68% between 3–6 PM.
Wednesdays have been rough.
B6 390 arrived on time 87% of the time on Saturdays and just 55% on Wednesdays. That gap is worth planning around.
A bit behind the SJU–EWR route.
B6 390 arrived on time 72% of the time, versus 75% across the SJU–EWR route.
The breakdown
- Mon79%(29 flights)
- Tue71%(28 flights)
- Wed55%(29 flights)
- Thu70%(27 flights)
- Fri75%(28 flights)
- Sat87%(15 flights)
- Sun70%(27 flights)
- 9 AM–12 PM93%(15 flights)
- 12–3 PM78%(18 flights)
- 3–6 PM68%(148 flights)
- 6–9 PM—(2 flights)
82%
May
Nov 84% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 84% | 25 |
| December 2025 | 81% | 26 |
| January 2026 | 72% | 29 |
| February 2026 | 50% | 26 |
| March 2026 | 54% | 26 |
| April 2026 | 75% | 28 |
| May 2026 | 82% | 17 |
- Departures on time
- 71%
- Diverted
- 0.5%
- Flights flown
- 183
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 189 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.