Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Raleigh/Durham via Atlanta: arrives on time 70%
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07:50 SFO → 15:33 ATLDL 640 · Delta · 4h 43m · 90% on time, 0.5% cancelled
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1h 51m layover in Atlanta (ATL) · 45 min minimum on one ticket
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17:24 ATL → 18:54 RDUDL 1097 · Delta · 1h 30m · 74% on time, 2.2% cancelled
Total trip 8h 04m, scheduled departure to arrival (Raleigh/Durham is 3 h ahead of San Francisco). Times are local. Both flew on 55 of the last 56 days.
Makes the connection97%The first flight arrived more than 66 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 51m layover.
Arrives on time70%First flight not cancelled (0.5% are) × connection made (97%) × second flight not cancelled (2.2% are) and within 15 minutes (74%).
Total trip8h 04mSFO 07:50 to RDU 18:54, 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.