Best Time to Fly CLT to BOS: On-Time Stats by Hour & Airline
Charlotte Douglas International → Logan International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.6% of Charlotte (CLT) to Boston (BOS) flights arrived on time (4,017 scheduled flights). That is 1.0 points below the national average of 77.6%.
Republic Airways was the most punctual of the 3 airlines on the route at 82.2%, while Spirit Airlines trailed at 72.5%.
November has been the best month (84% on time) and Thursday the weakest day of the week (71%).
2.4% of flights were cancelled, versus 1.8% nationally.
CLT 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 |
|---|---|---|---|---|
| Republic Airways | 82.2% | 72 min | 3.0% | 1,204 |
| American Airlines | 74.3% | 64 min | 2.0% | 2,738 |
| Spirit Airlines | 72.5% | 90 min | 1.4% | 70 |
| Envoy Air | Limited data | 5 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CLT to BOS
On-time arrival % by scheduled departure hour (local time), 8,781 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 71.1% | 2.2% | 46 |
| 6am–7am | 91.5% | 1.9% | 672 |
| 7am–8am | 88.5% | 1.1% | 632 |
| 8am–9am | 87.5% | 1.3% | 544 |
| 9am–10am | 82.9% | 0.4% | 277 |
| 10am–11am | 87.0% | 0.9% | 642 |
| 11am–12pm | 85.3% | 1.2% | 690 |
| 12pm–1pm | 77.3% | 1.2% | 165 |
| 1pm–2pm | 73.3% | 2.0% | 764 |
| 2pm–3pm | 72.6% | 1.5% | 745 |
| 3pm–4pm | 63.0% | 2.4% | 468 |
| 4pm–5pm | 66.7% | 3.9% | 156 |
| 5pm–6pm | 64.5% | 2.7% | 932 |
| 6pm–7pm | 60.9% | 2.4% | 626 |
| 7pm–8pm | 75.5% | 2.8% | 574 |
| 8pm–9pm | 66.8% | 3.3% | 549 |
| 9pm–10pm | 76.2% | 8.7% | 69 |
| 10pm–11pm | 59.7% | 1.7% | 230 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CLT 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) | 77.4% | -0.5 pts | 0.0% | 178 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.0% | -2.9 pts | 1.7% | 297 |
| Summer peak (Jun 15 - Aug 15) | 66.6% | -11.3 pts | 3.4% | 1,505 |
| All other days | 77.9% | — | 1.7% | 6,801 |
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).