Best Time to Fly JAX to BOS: On-Time Stats by Hour & Airline
Jacksonville International → Logan International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.6% of Jacksonville (JAX) to Boston (BOS) flights arrived on time (1,613 scheduled flights). That is 3.0 points below the national average of 77.6%.
Delta Air Lines was the most punctual of the 3 airlines on the route at 80.7%, while JetBlue trailed at 68.5%.
April has been the best month (85% on time) and Monday the weakest day of the week (71%).
2.3% of flights were cancelled, versus 1.8% nationally.
JAX to BOS 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 | 80.7% | 68 min | 5.0% | 60 |
| Republic Airways | 78.6% | 85 min | 1.4% | 896 |
| JetBlue | 68.5% | 79 min | 3.2% | 657 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly JAX to BOS
On-time arrival % by scheduled departure hour (local time), 3,085 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 87.3% | 0.2% | 420 |
| 7am–8am | 87.7% | 2.8% | 325 |
| 8am–9am | Limited data | 23 | |
| 9am–10am | 89.0% | 0.8% | 119 |
| 10am–11am | 81.8% | 1.1% | 183 |
| 11am–12pm | 76.0% | 2.0% | 196 |
| 12pm–1pm | 68.1% | 1.7% | 579 |
| 1pm–2pm | 80.4% | 1.1% | 263 |
| 2pm–3pm | 61.5% | 3.5% | 86 |
| 3pm–4pm | Limited data | 6 | |
| 4pm–5pm | Limited data | 14 | |
| 5pm–6pm | 51.2% | 4.4% | 45 |
| 6pm–7pm | 64.8% | 0.0% | 54 |
| 7pm–8pm | 71.2% | 2.4% | 499 |
| 8pm–9pm | 56.4% | 5.1% | 216 |
| 9pm–10pm | 70.9% | 3.5% | 57 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on JAX to BOS
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) | 76.9% | +0.7 pts | 0.0% | 65 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.9% | +0.6 pts | 2.9% | 138 |
| Summer peak (Jun 15 - Aug 15) | 72.0% | -4.3 pts | 3.8% | 558 |
| All other days | 76.3% | — | 1.5% | 2,324 |
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).