Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → San Diego via Las Vegas: arrives on time 59%
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06:00 STL → 07:25 LASWN 3934 · Southwest · 3h 25m · 88% on time, 0.0% cancelled
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1h 15m layover in Las Vegas (LAS) · 45 min minimum on one ticket
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08:40 LAS → 09:55 SANWN 2121 · Southwest · 1h 15m · 65% on time, 3.1% cancelled
Total trip 5h 55m, scheduled departure to arrival (San Diego is 2 h behind St Louis). Times are local. Both flew on 23 of the last 56 days.
Makes the connection94%The first flight arrived more than 30 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 15m layover.
Arrives on time59%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (3.1% are) and within 15 minutes (65%).
Total trip5h 55mSTL 06:00 to SAN 09:55, layover included
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.