Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Boston via Atlanta: arrives on time 89%
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22:30 SAN → 05:50 ATLDL 819 · Delta · 4h 20m · 95% on time, 1.3% cancelled
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2h 45m layover in Atlanta (ATL) · 45 min minimum on one ticket
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08:35 ATL → 11:14 BOS +1 dayDL 2432 · Delta · 2h 39m · 93% on time, 0.9% cancelled
Total trip 9h 44m, scheduled departure to arrival (Boston is 3 h ahead of San Diego). Times are local. Both flew on 55 of the last 56 days.
Makes the connection99%The first flight arrived more than 120 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 45m layover.
Arrives on time89%First flight not cancelled (1.3% are) × connection made (99%) × second flight not cancelled (0.9% are) and within 15 minutes (93%).
Total trip9h 44mSAN 22:30 to BOS 11:14, 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.