Flight Reliability
B6 1138 · JetBlue Airways
Austin → Boston (AUS–BOS)86% of its flights flew this route. The rest (MKE–BOS) are included in these numbers.
- 57%
- Arrive within 15 minutes
- 37 min
- Average arrival delay
- 1.8%
- Cancelled
- 9 min
- Median arrival delay
Based on 328 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
B6 1138 departing between 6–9 PM arrived on time 73% of the time, versus 42% between 12–3 PM.
Sunday scaries are real for this one.
B6 1138 arrived on time 78% of the time on Saturdays and just 43% on Sundays. That gap is worth planning around.
Lagging the AUS–BOS route.
B6 1138 arrived on time 57% of the time, versus 65% across the AUS–BOS route.
Well behind the JetBlue Airways network.
B6 1138 arrived on time 57% of the time, versus 73% across the JetBlue Airways network.
The breakdown
- Mon58%(50 flights)
- Tue65%(40 flights)
- Wed63%(41 flights)
- Thu46%(48 flights)
- Fri49%(49 flights)
- Sat78%(45 flights)
- Sun43%(49 flights)
- 9 AM–12 PM50%(18 flights)
- 12–3 PM42%(65 flights)
- 3–6 PM54%(143 flights)
- 6–9 PM73%(96 flights)
Jun 47% → May 75% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 47% | 30 |
| July 2025 | 47% | 30 |
| August 2025 | 84% | 31 |
| September 2025 | 59% | 22 |
| October 2025 | 39% | 31 |
| November 2025 | 55% | 29 |
| December 2025 | 39% | 31 |
| January 2026 | 35% | 17 |
| February 2026 | 65% | 20 |
| March 2026 | 61% | 31 |
| April 2026 | 77% | 30 |
| May 2026 | 75% | 20 |
- Departures on time
- 56%
- Diverted
- 0%
- Flights flown
- 322
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 328 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.