Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Boston via Dulles: arrives on time 71%
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12:57 SAN → 21:05 IADUA 444 · United · 5h 08m · 87% on time, 0.0% cancelled
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1h 05m layover in Dulles (IAD) · 45 min minimum on one ticket
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22:10 IAD → 23:59 BOSUA 755 · United · 1h 49m · 81% on time, 2.2% cancelled
Total trip 8h 02m, scheduled departure to arrival (Boston is 3 h ahead of San Diego). Times are local. Both flew on 54 of the last 56 days.
Makes the connection89%The first flight arrived more than 20 minutes late on 11% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time71%First flight not cancelled (0.0% are) × connection made (89%) × second flight not cancelled (2.2% are) and within 15 minutes (81%).
Total trip8h 02mSAN 12:57 to BOS 23:59, 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.