SNA (Santa Ana) to ORD (Chicago) flights arrive on time 82% of the time. The most reliable airline on this route is United Airlines at 85%. The average delay is 80 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.SNA → ORD
SNA (Santa Ana) to ORD (Chicago)
SNA → ORD on-time performance by month
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This route is on time most of the time. About 82% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
United Airlines edges out American Airlines on this route — 85% vs 79% on time.
Airline Comparison
United Airlines leads at 85% on time; American Airlines trails at 79%.
Accurate?
Good to know
Departing from SNA
82% 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.