Best Time to Fly BWI to RDU: On-Time Stats by Hour & Airline
Baltimore/Washington International Thurgood Marshall → Raleigh-Durham International
Data through July 2026 · Last updated October 18, 2026
1,792 flights were scheduled from Baltimore (BWI) to Raleigh/Durham (RDU) in the last 12 months, and 81.0% of those that flew arrived on time, 3.4 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (86% on time) and August the worst month (71%).
The cancellation rate was 2.5% (US average 1.8%).
BWI to RDU 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 |
|---|---|---|---|---|
| Southwest Airlines | 81.0% | 58 min | 2.5% | 1,789 |
| Spirit Airlines | Limited data | 3 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BWI to RDU
On-time arrival % by scheduled departure hour (local time), 3,627 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 95.3% | 4.4% | 180 |
| 7am–8am | 94.6% | 0.0% | 93 |
| 8am–9am | 94.0% | 0.9% | 441 |
| 9am–10am | 89.8% | 0.0% | 157 |
| 10am–11am | 90.1% | 1.3% | 153 |
| 11am–12pm | 86.7% | 1.4% | 213 |
| 12pm–1pm | 84.9% | 0.0% | 119 |
| 1pm–2pm | 84.9% | 0.0% | 172 |
| 2pm–3pm | 81.0% | 0.9% | 228 |
| 3pm–4pm | 75.7% | 1.0% | 195 |
| 4pm–5pm | 74.4% | 1.4% | 293 |
| 5pm–6pm | 74.4% | 1.4% | 285 |
| 6pm–7pm | 67.9% | 3.1% | 225 |
| 7pm–8pm | 66.4% | 3.6% | 111 |
| 8pm–9pm | 78.9% | 3.6% | 167 |
| 9pm–10pm | 72.5% | 3.0% | 338 |
| 10pm–11pm | 68.8% | 2.7% | 257 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BWI to RDU
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) | 77.3% | -6.0 pts | 0.0% | 75 |
| Christmas & New Year (Dec 20 - Jan 3) | 74.0% | -9.2 pts | 1.9% | 161 |
| Summer peak (Jun 15 - Aug 15) | 72.1% | -11.2 pts | 3.0% | 658 |
| All other days | 83.3% | — | 1.5% | 2,733 |
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).