Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Raleigh/Durham via Dulles: arrives on time 71%
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10:50 SFO → 19:11 IADUA 336 · United · 5h 21m · 78% on time, 0.5% cancelled
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3h 14m layover in Dulles (IAD) · 45 min minimum on one ticket
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22:25 IAD → 23:44 RDUUA 2382 · United · 1h 19m · 76% on time, 1.4% cancelled
Total trip 9h 54m, scheduled departure to arrival (Raleigh/Durham is 3 h ahead of San Francisco). Times are local. Both flew on 54 of the last 56 days.
Makes the connection96%The first flight arrived more than 149 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 3h 14m layover.
Arrives on time71%First flight not cancelled (0.5% are) × connection made (96%) × second flight not cancelled (1.4% are) and within 15 minutes (76%).
Total trip9h 54mSFO 10:50 to RDU 23:44, 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.