Route
SAT → IAH
San Antonio International Airport George Bush Intercontinental Airport
How punctual is this route?
- On-time arrivals
- 83.0%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,372
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 50%
- Late-arriving aircraft 25%
- Airline (crew, maintenance, cleaning) 23%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.0% | 229 |
| October 2025 | 72.2% | 213 |
| November 2025 | 83.9% | 207 |
| December 2025 | 86.0% | 216 |
| January 2026 | 91.6% | 180 |
| February 2026 | 90.5% | 168 |
| March 2026 | 80.5% | 233 |
| April 2026 | 81.0% | 216 |
| May 2026 | 79.3% | 184 |
| June 2026 | 77.2% | 171 |
| July 2026 | 81.7% | 180 |
| August 2026 | 92.6% | 175 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 2,245 | 82.8% | 0.4% | 65 min |
| SkyWest Airlines | 127 | 87.3% | 0.8% | 74 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA410
13% late · 246 flights
-
UA469
4% late · 223 flights
-
UA404
22% late · 201 flights
-
UA1282
11% late · 196 flights
-
UA515
17% late · 133 flights
-
UA2157
35% late · 127 flights
-
UA1486
37% late · 108 flights
-
UA2498
19% late · 107 flights
-
UA2323
33% late · 82 flights
-
UA2658
12% late · 82 flights
-
OO5658
10% late · 59 flights
-
UA349
11% late · 55 flights
-
UA753
32% late · 53 flights
-
UA1571
8% late · 52 flights
-
UA582
23% late · 52 flights
-
UA2827
17% late · 47 flights
-
UA2625
14% late · 37 flights
-
UA1687
31% late · 35 flights
-
UA2385
19% late · 33 flights
-
UA2654
6% late · 32 flights
-
UA1361
6% late · 31 flights
-
UA1397
6% late · 31 flights
-
UA2078
17% late · 31 flights
-
UA2675
7% late · 27 flights
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