Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → St Louis via Atlanta: arrives on time 72%
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14:18 SAN → 22:00 ATLDL 540 · Delta · 4h 42m · 83% on time, 0.0% cancelled
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1h 10m layover in Atlanta (ATL) · 45 min minimum on one ticket
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23:10 ATL → 23:53 STLDL 1403 · Delta · 1h 46m · 83% on time, 1.8% cancelled
Total trip 7h 38m, scheduled departure to arrival (St Louis is 2 h ahead of San Diego). Times are local. Both flew on 48 of the last 56 days.
Makes the connection88%The first flight arrived more than 25 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time72%First flight not cancelled (0.0% are) × connection made (88%) × second flight not cancelled (1.8% are) and within 15 minutes (83%).
Total trip7h 38mSAN 14:18 to STL 23:53, 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.