Best Time to Fly RDU to PHX: On-Time Stats by Hour & Airline
Raleigh-Durham International → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.3% of Raleigh/Durham (RDU) to Phoenix (PHX) flights arrived on time (834 scheduled flights). That is 3.7 points above the national average of 77.6%.
Among 2 airlines, American Airlines led with 86.2% on time and Southwest Airlines was last with 73.4%.
Over 24 months, Monday was the most reliable day (89% on time) and June the worst month (61%).
The cancellation rate was 1.1% (US average 1.8%).
RDU to PHX 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 |
|---|---|---|---|---|
| American Airlines | 86.2% | 85 min | 1.0% | 513 |
| Southwest Airlines | 73.4% | 39 min | 1.2% | 321 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly RDU to PHX
On-time arrival % by scheduled departure hour (local time), 1,489 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 23 | |
| 6am–7am | 93.6% | 5.0% | 181 |
| 7am–8am | 86.5% | 0.2% | 616 |
| 8am–9am | 94.8% | 0.0% | 58 |
| 10am–11am | 76.7% | 0.0% | 31 |
| 11am–12pm | Limited data | 13 | |
| 12pm–1pm | 87.5% | 0.0% | 64 |
| 1pm–2pm | 77.2% | 0.0% | 145 |
| 2pm–3pm | 52.5% | 2.4% | 41 |
| 3pm–4pm | Limited data | 29 | |
| 4pm–5pm | 76.5% | 0.0% | 51 |
| 5pm–6pm | 72.8% | 0.0% | 185 |
| 6pm–7pm | 38.2% | 0.0% | 34 |
| 7pm–8pm | Limited data | 17 | |
| 8pm–9pm | 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 RDU to PHX
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) | 63.9% | -21.5 pts | 0.0% | 36 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.7% | -5.6 pts | 0.0% | 69 |
| Summer peak (Jun 15 - Aug 15) | 70.7% | -14.6 pts | 0.8% | 267 |
| All other days | 85.3% | — | 0.8% | 1,117 |
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).