Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Nashville via San Francisco: arrives on time 5%
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20:10 SAN → 21:55 SFOWN 4772 · Southwest · 1h 40m · 12% on time, 0.0% cancelled
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55m layover in San Francisco (SFO) · 45 min minimum on one ticket
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22:50 SFO → 05:10 BNA +1 dayWN 3634 · Southwest · 4h 20m · 40% on time, 0.0% cancelled
Total trip 7h 00m, scheduled departure to arrival (Nashville is 2 h ahead of San Diego). Times are local. Both flew on 47 of the last 56 days.
Makes the connection12%The first flight arrived more than 10 minutes late on 88% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time5%First flight not cancelled (0.0% are) × connection made (12%) × second flight not cancelled (0.0% are) and within 15 minutes (40%).
Total trip7h 00mSAN 20:10 to BNA 05:10, 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.