Best Time to Fly PHL to RDU: On-Time Stats by Hour & Airline
Philadelphia International → Raleigh-Durham International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.8% of Philadelphia (PHL) to Raleigh/Durham (RDU) flights arrived on time (2,602 scheduled flights). That is 2.8 points below the national average of 77.6%.
Among 4 airlines, Republic Airways led with 82.1% on time and PSA Airlines was last with 71.6%.
Over 24 months, Wednesday was the most reliable day (80% on time) and July the worst month (65%).
The cancellation rate was 2.7% (US average 1.8%).
PHL 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 |
|---|---|---|---|---|
| Republic Airways | 82.1% | 74 min | 3.2% | 219 |
| Frontier Airlines | 80.3% | 74 min | 2.7% | 600 |
| American Airlines | 72.3% | 77 min | 1.9% | 1,078 |
| PSA Airlines | 71.6% | 83 min | 3.7% | 705 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHL to RDU
On-time arrival % by scheduled departure hour (local time), 5,122 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.8% | 3.2% | 63 |
| 6am–7am | 82.9% | 0.6% | 176 |
| 7am–8am | 82.8% | 1.3% | 224 |
| 8am–9am | 84.4% | 1.8% | 339 |
| 9am–10am | 78.7% | 1.2% | 337 |
| 10am–11am | 85.8% | 2.1% | 519 |
| 11am–12pm | 77.2% | 2.3% | 220 |
| 12pm–1pm | 82.0% | 0.5% | 207 |
| 1pm–2pm | 72.4% | 2.5% | 406 |
| 2pm–3pm | 78.3% | 1.2% | 429 |
| 3pm–4pm | 69.2% | 3.0% | 363 |
| 4pm–5pm | 68.6% | 1.5% | 395 |
| 5pm–6pm | 68.6% | 4.4% | 181 |
| 6pm–7pm | 63.1% | 4.4% | 275 |
| 7pm–8pm | 63.8% | 3.7% | 410 |
| 8pm–9pm | 63.1% | 4.8% | 168 |
| 9pm–10pm | 73.1% | 3.1% | 288 |
| 10pm–11pm | 70.6% | 9.9% | 121 |
| 11pm–12am | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PHL 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) | 81.1% | +3.8 pts | 0.0% | 90 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.6% | -6.7 pts | 1.6% | 183 |
| Summer peak (Jun 15 - Aug 15) | 65.5% | -11.8 pts | 5.1% | 938 |
| All other days | 77.3% | — | 2.0% | 3,911 |
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).