Best Time to Fly BOS to JAX: On-Time Stats by Hour & Airline
Logan International → Jacksonville International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.3% of Boston (BOS) to Jacksonville (JAX) flights arrived on time (1,610 scheduled flights). That is 2.4 points below the national average of 77.6%.
Among 3 airlines, Delta Air Lines led with 82.5% on time and Republic Airways was last with 74.1%.
Over 24 months, Wednesday was the most reliable day (80% on time) and July the worst month (67%).
The cancellation rate was 2.7% (US average 1.8%).
BOS to JAX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 82.5% | 82 min | 5.0% | 60 |
| JetBlue | 76.2% | 71 min | 3.4% | 657 |
| Republic Airways | 74.1% | 62 min | 2.0% | 893 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOS to JAX
On-time arrival % by scheduled departure hour (local time), 3,083 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 89.4% | 4.3% | 188 |
| 7am–8am | 84.8% | 1.5% | 274 |
| 8am–9am | 82.1% | 1.6% | 450 |
| 9am–10am | 87.7% | 0.9% | 428 |
| 10am–11am | 66.7% | 2.5% | 80 |
| 11am–12pm | Limited data | 4 | |
| 12pm–1pm | Limited data | 10 | |
| 1pm–2pm | 61.2% | 2.0% | 50 |
| 2pm–3pm | 94.7% | 0.0% | 38 |
| 3pm–4pm | 74.8% | 2.3% | 485 |
| 4pm–5pm | 60.0% | 2.5% | 314 |
| 5pm–6pm | 67.5% | 3.2% | 124 |
| 6pm–7pm | 77.9% | 2.5% | 79 |
| 7pm–8pm | 62.5% | 3.0% | 366 |
| 8pm–9pm | 64.5% | 2.1% | 193 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BOS to JAX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 78.5% | +1.5 pts | 0.0% | 65 |
| Christmas & New Year (Dec 20 - Jan 3) | 68.7% | -8.3 pts | 2.9% | 138 |
| Summer peak (Jun 15 - Aug 15) | 71.1% | -5.8 pts | 4.7% | 558 |
| All other days | 77.0% | — | 1.6% | 2,322 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).