Best Time to Fly RDU to BOS: On-Time Stats by Hour & Airline
Raleigh-Durham International → Logan International
Data through July 2026 · Last updated October 18, 2026
2,827 flights were scheduled from Raleigh/Durham (RDU) to Boston (BOS) in the last 12 months, and 79.2% of those that flew arrived on time, 1.6 points above the US average of 77.6%.
Among 4 airlines, Republic Airways led with 81.1% on time and JetBlue was last with 77.1%.
Over 24 months, Saturday was the most reliable day (84% on time) and September the worst month (73%).
The cancellation rate was 2.8% (US average 1.8%).
RDU 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 | 81.1% | 87 min | 5.2% | 134 |
| Delta Air Lines | 80.4% | 88 min | 2.7% | 1,434 |
| Frontier Airlines | 80.4% | 57 min | 0.0% | 168 |
| JetBlue | 77.1% | 72 min | 3.0% | 1,091 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly RDU to BOS
On-time arrival % by scheduled departure hour (local time), 5,859 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 11 | |
| 6am–7am | 92.9% | 1.9% | 788 |
| 7am–8am | 93.4% | 2.8% | 469 |
| 8am–9am | 83.5% | 1.1% | 263 |
| 9am–10am | 91.1% | 1.3% | 853 |
| 10am–11am | 84.5% | 2.7% | 366 |
| 11am–12pm | 84.6% | 0.7% | 137 |
| 12pm–1pm | 73.7% | 0.3% | 297 |
| 1pm–2pm | 76.5% | 1.3% | 521 |
| 2pm–3pm | 64.4% | 7.0% | 157 |
| 3pm–4pm | 61.2% | 3.7% | 107 |
| 4pm–5pm | 68.8% | 1.3% | 630 |
| 5pm–6pm | 73.0% | 2.4% | 205 |
| 6pm–7pm | 70.3% | 3.3% | 181 |
| 7pm–8pm | 74.7% | 2.7% | 414 |
| 8pm–9pm | 64.0% | 1.3% | 391 |
| 9pm–10pm | 69.1% | 1.4% | 69 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on RDU 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) | 86.4% | +5.2 pts | 0.0% | 125 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.0% | -1.2 pts | 4.1% | 220 |
| Summer peak (Jun 15 - Aug 15) | 75.1% | -6.1 pts | 3.4% | 991 |
| All other days | 81.2% | — | 1.5% | 4,523 |
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).