Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Raleigh/Durham → San Francisco via Boston: arrives on time 46%
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07:00 RDU → 09:02 BOSDL 1054 · Delta · 2h 02m · 93% on time, 4.0% cancelled
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1h 09m layover in Boston (BOS) · 45 min minimum on one ticket
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10:11 BOS → 13:45 SFODL 860 · Delta · 6h 36m · 51% on time, 0.0% cancelled
Total trip 9h 47m, scheduled departure to arrival (San Francisco is 3 h behind Raleigh/Durham). Times are local. Both flew on 54 of the last 56 days.
Makes the connection95%The first flight arrived more than 24 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 09m layover.
Arrives on time46%First flight not cancelled (4.0% are) × connection made (95%) × second flight not cancelled (0.0% are) and within 15 minutes (51%).
Total trip9h 47mRDU 07:00 to SFO 13:45, 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.