Best Time to Fly DTW to IAD
Detroit to Washington — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
DTW → IAD on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 402 |
| February | 1% | 0% | 360 |
| March | 1% | 0% | 453 |
| April | 1% | 0% | 429 |
| May | 1% | 0% | 515 |
| June | 1% | 0% | 471 |
| July | 1% | 0% | 440 |
| August | 1% | 0% | 319 |
| September | 1% | 0% | 302 |
| October | 1% | 0% | 325 |
| November | 1% | 0% | 243 |
| December | 1% | 0% | 301 |
Frequently asked
What is the best month to fly from DTW to IAD?
January has the highest on-time rate at 1% for flights from Detroit to Washington.
What is the worst month to fly DTW to IAD?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are DTW to IAD flights delayed?
On average, 1% of flights from DTW to IAD arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.