Best Time to Fly BOS to RSW: On-Time Stats by Hour & Airline
Logan International → Southwest Florida International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 70.8% of Boston (BOS) to Fort Myers (RSW) flights arrived on time (2,193 scheduled flights). That is 6.9 points below the national average of 77.6%.
Delta Air Lines was the most punctual of the 3 airlines on the route at 79.2%, while Spirit Airlines trailed at 34.3%.
November has been the best month (82% on time) and Sunday the weakest day of the week (64%).
2.7% of flights were cancelled, versus 1.8% nationally.
BOS to RSW 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 | 79.2% | 63 min | 1.4% | 552 |
| JetBlue | 69.3% | 68 min | 2.8% | 1,566 |
| Spirit Airlines | 34.3% | 52 min | 10.7% | 75 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOS to RSW
On-time arrival % by scheduled departure hour (local time), 4,671 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 9 | |
| 6am–7am | 86.9% | 4.3% | 418 |
| 7am–8am | 84.3% | 1.8% | 995 |
| 8am–9am | 77.5% | 0.7% | 143 |
| 9am–10am | 68.3% | 1.6% | 125 |
| 10am–11am | 73.3% | 1.0% | 197 |
| 11am–12pm | 71.8% | 3.2% | 315 |
| 12pm–1pm | 71.0% | 2.3% | 259 |
| 1pm–2pm | 66.2% | 1.3% | 78 |
| 2pm–3pm | 69.3% | 2.9% | 273 |
| 3pm–4pm | 61.5% | 1.7% | 531 |
| 4pm–5pm | 58.2% | 4.0% | 470 |
| 5pm–6pm | 67.0% | 0.5% | 222 |
| 6pm–7pm | 71.2% | 1.7% | 180 |
| 7pm–8pm | 57.4% | 4.1% | 169 |
| 8pm–9pm | 59.9% | 1.7% | 241 |
| 9pm–10pm | 68.9% | 2.2% | 46 |
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 RSW
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) | 71.8% | -1.3 pts | 2.8% | 106 |
| Christmas & New Year (Dec 20 - Jan 3) | 51.6% | -21.6 pts | 1.7% | 289 |
| Summer peak (Jun 15 - Aug 15) | 72.6% | -0.6 pts | 3.9% | 487 |
| All other days | 73.2% | — | 2.2% | 3,789 |
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).