Flight Reliability
B6 1236 · JetBlue Airways
Detroit → Boston (DTW–BOS)
95
Nerd Approved
WanderNerd Reliability Score
- 90%
- Arrive within 15 minutes
- 1 min
- Average arrival delay
- 0.7%
- Cancelled
- 15 min early
- Median arrival delay
Based on 144 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
B6 1236 arrived on time 100% of the time on Wednesdays and just 83% on Sundays. That gap is worth planning around.
Better than the DTW–BOS route average.
B6 1236 arrived on time 90% of the time, versus 75% across the DTW–BOS route.
Well ahead of the JetBlue Airways network.
B6 1236 arrived on time 90% of the time, versus 73% across the JetBlue Airways network.
Ticking up lately.
B6 1236 arrived on time 94% of the time over the last three months in the data, compared with 89% in the three months before that.
The breakdown
- Mon86%(22 flights)
- Tue86%(21 flights)
- Wed100%(12 flights)
- Thu87%(15 flights)
- Fri96%(23 flights)
- Sat92%(26 flights)
- Sun83%(24 flights)
- 6–9 AM91%(140 flights)
- 6–9 PM—(3 flights)
100%
May
Jun 95% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 95% | 19 |
| July 2025 | 85% | 20 |
| August 2025 | 96% | 23 |
| September 2025 | 87% | 30 |
| October 2025 | 92% | 26 |
| November 2025 | 90% | 10 |
| May 2026 | 100% | 11 |
- Departures on time
- 92%
- Diverted
- 0%
- Flights flown
- 143
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 144 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.