Flight Reliability
B6 993 · JetBlue Airways
Boston → Denver (BOS–DEN)
55
A Little Dicey
WanderNerd Reliability Score
- 58%
- Arrive within 15 minutes
- 20 min
- Average arrival delay
- 1.4%
- Cancelled
- 6 min
- Median arrival delay
Based on 279 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
B6 993 arrived on time 72% of the time on Saturdays and just 44% on Sundays. That gap is worth planning around.
Well behind the BOS–DEN route.
B6 993 arrived on time 58% of the time, versus 77% across the BOS–DEN route.
Well behind the JetBlue Airways network.
B6 993 arrived on time 58% of the time, versus 73% across the JetBlue Airways network.
Slipping a little lately.
B6 993 arrived on time 60% of the time over the last three months in the data, compared with 66% in the three months before that.
The breakdown
- Mon57%(42 flights)
- Tue62%(34 flights)
- Wed66%(35 flights)
- Thu61%(43 flights)
- Fri48%(42 flights)
- Sat72%(36 flights)
- Sun44%(43 flights)
64%
May
Jun 40% → May 64% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 40% | 30 |
| July 2025 | 29% | 28 |
| August 2025 | 71% | 31 |
| September 2025 | 72% | 18 |
| October 2025 | 62% | 21 |
| November 2025 | 90% | 10 |
| December 2025 | 82% | 28 |
| February 2026 | 27% | 15 |
| March 2026 | 58% | 31 |
| April 2026 | 57% | 30 |
| May 2026 | 64% | 28 |
- Departures on time
- 60%
- Diverted
- 0%
- Flights flown
- 275
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 279 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.