Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Jose → Denver via San Diego: arrives on time 24%
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17:00 SJC → 18:25 SANWN 3702 · Southwest · 1h 25m · 52% on time, 1.8% cancelled
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1h 10m layover in San Diego (SAN) · 45 min minimum on one ticket
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19:35 SAN → 22:55 DENWN 4152 · Southwest · 2h 20m · 42% on time, 1.9% cancelled
Total trip 4h 55m, scheduled departure to arrival (Denver is 1 h ahead of San Jose). Times are local. Both flew on 51 of the last 56 days.
Makes the connection61%The first flight arrived more than 25 minutes late on 39% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time24%First flight not cancelled (1.8% are) × connection made (61%) × second flight not cancelled (1.9% are) and within 15 minutes (42%).
Total trip4h 55mSJC 17:00 to DEN 22:55, 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.