Best Time to Fly RDU to PHL
Raleigh to Philadelphia — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
RDU → PHL on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 651 |
| February | 1% | 0% | 607 |
| March | 1% | 0% | 721 |
| April | 1% | 0% | 732 |
| May | 1% | 0% | 838 |
| June | 1% | 0% | 858 |
| July | 1% | 0.1% | 877 |
| August | 1% | 0% | 634 |
| September | 1% | 0% | 639 |
| October | 1% | 0% | 704 |
| November | 1% | 0% | 587 |
| December | 1% | 0% | 540 |
Frequently asked
What is the best month to fly from RDU to PHL?
January has the highest on-time rate at 1% for flights from Raleigh to Philadelphia.
What is the worst month to fly RDU to PHL?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are RDU to PHL flights delayed?
On average, 1% of flights from RDU to PHL arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.