Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Chicago via San Francisco: arrives on time 25%
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11:55 SAN → 13:41 SFOUA 2428 · United · 1h 46m · 72% on time, 0.0% cancelled
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48m layover in San Francisco (SFO) · 45 min minimum on one ticket
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14:29 SFO → 21:03 ORDUA 1777 · United · 4h 34m · 46% on time, 0.0% cancelled
Total trip 7h 08m, scheduled departure to arrival (Chicago is 2 h ahead of San Diego). Times are local. Both flew on 56 of the last 56 days.
Makes the connection54%The first flight arrived more than 3 minutes late on 46% of the days it flew: too late for the 45-minute minimum connection on a 48m layover.
Arrives on time25%First flight not cancelled (0.0% are) × connection made (54%) × second flight not cancelled (0.0% are) and within 15 minutes (46%).
Total trip7h 08mSAN 11:55 to ORD 21:03, 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.