Route
ORD → SAT
Chicago O'Hare International Airport San Antonio International Airport
How punctual is this route?
- On-time arrivals
- 72.7%
- Less than 15 minutes late
- Cancelled
- 1.7%
- Of scheduled flights
- Average delay when late
- 77 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,001
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Airline (crew, maintenance, cleaning) 25%
- Air traffic control & airport 16%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 78.7% | 151 |
| October 2025 | 83.8% | 179 |
| November 2025 | 83.7% | 160 |
| December 2025 | 74.7% | 160 |
| January 2026 | 70.3% | 143 |
| February 2026 | 82.5% | 144 |
| March 2026 | 74.0% | 179 |
| April 2026 | 67.8% | 175 |
| May 2026 | 70.1% | 179 |
| June 2026 | 67.1% | 174 |
| July 2026 | 63.8% | 178 |
| August 2026 | 59.6% | 179 |
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 | 889 | 74.0% | 0.9% | 77 min |
| American Airlines | 497 | 64.3% | 1.8% | 88 min |
| Envoy Air | 410 | 76.3% | 2.4% | 66 min |
| SkyWest Airlines | 104 | 79.0% | 3.8% | 62 min |
| Republic Airways | 101 | 82.3% | 4.0% | 66 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA490
17% late · 293 flights
-
UA1394
47% late · 169 flights
-
AA431
53% late · 143 flights
-
MQ4176
25% late · 99 flights
-
UA2844
24% late · 90 flights
-
AA1275
28% late · 81 flights
-
MQ3426
27% late · 66 flights
-
AA2486
30% late · 64 flights
-
YX4667
15% late · 63 flights
-
UA658
12% late · 59 flights
-
AA857
28% late · 47 flights
-
MQ3607
24% late · 45 flights
-
MQ4067
32% late · 44 flights
-
MQ4147
14% late · 44 flights
-
MQ4186
16% late · 44 flights
-
AA3059
15% late · 40 flights
-
UA2287
14% late · 37 flights
-
AA3314
30% late · 33 flights
-
UA1842
26% late · 32 flights
-
OO5444
7% late · 30 flights
-
AA2295
21% late · 29 flights
-
UA1278
45% late · 29 flights
-
AA488
44% late · 27 flights
-
UA2479
8% late · 26 flights
Reviews
No reviews yet. Be the first to review this route.