Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Santa Ana via San Francisco: arrives on time 50%
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15:26 ORD → 18:18 SFOUA 1334 · United · 4h 52m · 66% on time, 0.0% cancelled
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52m layover in San Francisco (SFO) · 45 min minimum on one ticket
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19:10 SFO → 20:55 SNAUA 589 · United · 1h 45m · 89% on time, 0.3% cancelled
Total trip 7h 29m, scheduled departure to arrival (Santa Ana is 2 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection56%The first flight arrived more than 7 minutes late on 44% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time50%First flight not cancelled (0.0% are) × connection made (56%) × second flight not cancelled (0.3% are) and within 15 minutes (89%).
Total trip7h 29mORD 15:26 to SNA 20:55, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.