Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → San Francisco via San Diego: arrives on time 9%
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14:15 MDW → 16:25 SANWN 2883 · Southwest · 4h 10m · 23% on time, 0.0% cancelled
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1h 00m layover in San Diego (SAN) · 45 min minimum on one ticket
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17:25 SAN → 19:02 SFOWN 3533 · Southwest · 1h 38m · 38% on time, 0.0% cancelled
Total trip 6h 48m, scheduled departure to arrival (San Francisco is 2 h behind Chicago). Times are local. Both flew on 24 of the last 56 days.
Makes the connection23%The first flight arrived more than 15 minutes late on 77% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time9%First flight not cancelled (0.0% are) × connection made (23%) × second flight not cancelled (0.0% are) and within 15 minutes (38%).
Total trip6h 48mMDW 14:15 to SFO 19:02, 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.