Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Newark → San Francisco via Boston: arrives on time 78%
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07:00 EWR → 08:17 BOSUA 593 · United · 1h 17m · 86% on time, 1.0% cancelled
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3h 18m layover in Boston (BOS) · 45 min minimum on one ticket
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11:35 BOS → 15:02 SFOUA 1074 · United · 6h 27m · 80% on time, 0.4% cancelled
Total trip 11h 02m, scheduled departure to arrival (San Francisco is 3 h behind Newark). Times are local. Both flew on 31 of the last 56 days.
Makes the connection99%The first flight arrived more than 153 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 18m layover.
Arrives on time78%First flight not cancelled (1.0% are) × connection made (99%) × second flight not cancelled (0.4% are) and within 15 minutes (80%).
Total trip11h 02mEWR 07:00 to SFO 15:02, 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.