Route
SAT → ORD
San Antonio International Airport Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 76.4%
- Less than 15 minutes late
- Cancelled
- 2.1%
- Of scheduled flights
- Average delay when late
- 84 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,004
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 45%
- Air traffic control & airport 29%
- Airline (crew, maintenance, cleaning) 18%
- Extreme weather 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 81.3% | 151 |
| October 2025 | 78.2% | 179 |
| November 2025 | 77.1% | 160 |
| December 2025 | 76.6% | 160 |
| January 2026 | 78.3% | 145 |
| February 2026 | 84.8% | 145 |
| March 2026 | 65.9% | 179 |
| April 2026 | 74.4% | 175 |
| May 2026 | 83.5% | 179 |
| June 2026 | 74.7% | 174 |
| July 2026 | 74.4% | 178 |
| August 2026 | 69.7% | 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 | 78.9% | 1.1% | 94 min |
| American Airlines | 500 | 74.2% | 1.8% | 90 min |
| Envoy Air | 410 | 76.1% | 3.2% | 72 min |
| SkyWest Airlines | 104 | 68.4% | 5.8% | 57 min |
| Republic Airways | 101 | 74.7% | 5.0% | 55 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1332
13% late · 339 flights
-
AA632
15% late · 165 flights
-
UA2243
23% late · 162 flights
-
UA697
37% late · 116 flights
-
MQ4176
26% late · 99 flights
-
UA1905
16% late · 91 flights
-
AA1710
17% late · 82 flights
-
MQ4114
29% late · 82 flights
-
AA2486
40% late · 65 flights
-
YX4667
28% late · 63 flights
-
MQ3442
13% late · 53 flights
-
AA857
31% late · 50 flights
-
UA2824
24% late · 47 flights
-
OO5627
30% late · 46 flights
-
MQ4012
12% late · 44 flights
-
MQ4147
23% late · 44 flights
-
MQ4186
31% late · 44 flights
-
UA1316
45% late · 40 flights
-
AA3059
23% late · 39 flights
-
OO5636
32% late · 39 flights
-
AA2278
24% late · 29 flights
-
AA2738
52% late · 27 flights
-
MQ3569
26% late · 24 flights
-
UA2008
0% late · 24 flights
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