Best Time to Fly IAH to SAT
Houston to San Antonio — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
IAH → SAT on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 672 |
| February | 1% | 0% | 653 |
| March | 1% | 0% | 755 |
| April | 1% | 0% | 709 |
| May | 1% | 0% | 738 |
| June | 1% | 0% | 728 |
| July | 1% | 0% | 774 |
| August | 1% | 0% | 641 |
| September | 1% | 0% | 664 |
| October | 1% | 0% | 647 |
| November | 1% | 0% | 577 |
| December | 1% | 0% | 551 |
Frequently asked
What is the best month to fly from IAH to SAT?
January has the highest on-time rate at 1% for flights from Houston to San Antonio.
What is the worst month to fly IAH to SAT?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are IAH to SAT flights delayed?
On average, 1% of flights from IAH to SAT arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.