Best Time to Fly IAD to CMH
Washington to Columbus — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
IAD → CMH on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 201 |
| February | 1% | 0% | 204 |
| March | 1% | 0% | 249 |
| April | 1% | 0% | 282 |
| May | 1% | 0% | 263 |
| June | 1% | 0% | 306 |
| July | 1% | 0% | 307 |
| August | 1% | 0% | 309 |
| September | 1% | 0% | 237 |
| October | 1% | 0% | 226 |
| November | 1% | 0% | 199 |
| December | 1% | 0% | 211 |
Frequently asked
What is the best month to fly from IAD to CMH?
January has the highest on-time rate at 1% for flights from Washington to Columbus.
What is the worst month to fly IAD to CMH?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are IAD to CMH flights delayed?
On average, 1% of flights from IAD to CMH arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.