Best Time to Fly IAH to BHM
Houston to Birmingham — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
July
0% on time
IAH → BHM on-time performance by month
23
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0.1% | 49 |
| February | 1% | 0% | 72 |
| March | 1% | 0% | 41 |
| April | 1% | 0% | 109 |
| May | 1% | 0% | 42 |
| June | 1% | 0% | 60 |
| July | 0% | 0.1% | 60 |
| August | 1% | 0% | 71 |
| September | 1% | 0% | 65 |
| October | 1% | 0% | 93 |
| November | 1% | 0% | 168 |
| December | 1% | 0% | 37 |
Frequently asked
What is the best month to fly from IAH to BHM?
January has the highest on-time rate at 1% for flights from Houston to Birmingham.
What is the worst month to fly IAH to BHM?
July has the lowest on-time rate at 0%, often due to summer thunderstorms.
How often are IAH to BHM flights delayed?
On average, 1% of flights from IAH to BHM arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.