Best Time to Fly RDU to ORD
Raleigh to Chicago — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
RDU → ORD on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 881 |
| February | 1% | 0% | 833 |
| March | 1% | 0% | 995 |
| April | 1% | 0% | 1,021 |
| May | 1% | 0% | 1,114 |
| June | 1% | 0% | 1,082 |
| July | 1% | 0% | 1,125 |
| August | 1% | 0% | 809 |
| September | 1% | 0% | 799 |
| October | 1% | 0% | 868 |
| November | 1% | 0% | 823 |
| December | 1% | 0% | 793 |
Frequently asked
What is the best month to fly from RDU to ORD?
January has the highest on-time rate at 1% for flights from Raleigh to Chicago.
What is the worst month to fly RDU to ORD?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are RDU to ORD flights delayed?
On average, 1% of flights from RDU to ORD arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.