Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Boston via San Francisco: arrives on time 88%
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11:01 SAN → 12:47 SFOUA 2309 · United · 1h 46m · 68% on time, 0.0% cancelled
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3h 28m layover in San Francisco (SFO) · 45 min minimum on one ticket
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16:15 SFO → 01:11 BOS +1 dayUA 2001 · United · 5h 56m · 88% on time, 0.0% cancelled
Total trip 11h 10m, scheduled departure to arrival (Boston is 3 h ahead of San Diego). Times are local. Both flew on 52 of the last 56 days.
Makes the connection100%The first flight arrived more than 163 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 28m layover.
Arrives on time88%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip11h 10mSAN 11:01 to BOS 01:11, 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.