SAT (San Antonio) to ORD (Chicago) flights arrive on time 83% of the time. The most reliable airline on this route is United Airlines at 88%. The average delay is 89 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.SAT → ORD
SAT (San Antonio) to ORD (Chicago)
SAT → ORD on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
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This route is on time most of the time. About 83% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
United Airlines is significantly more reliable on this route at 88% on time vs SkyWest Airlines at 67%.
Airline Comparison
United Airlines leads at 88% on time; SkyWest Airlines trails at 67%.
Accurate?
Good to know
Departing from SAT
81% on timeTSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at ORD
80% on timeWhen flights into ORD are late, the average delay is 76 minutes. Build buffer if you have ground plans.
If connecting at ORD: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.