Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Baltimore via Atlanta: arrives on time 60%
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07:50 SFO → 15:33 ATLDL 640 · Delta · 4h 43m · 90% on time, 0.5% cancelled
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54m layover in Atlanta (ATL) · 45 min minimum on one ticket
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16:27 ATL → 18:23 BWIDL 2928 · Delta · 1h 54m · 72% on time, 3.2% cancelled
Total trip 7h 31m, scheduled departure to arrival (Baltimore is 3 h ahead of San Francisco). Times are local. Both flew on 56 of the last 56 days.
Makes the connection87%The first flight arrived more than 9 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 54m layover.
Arrives on time60%First flight not cancelled (0.5% are) × connection made (87%) × second flight not cancelled (3.2% are) and within 15 minutes (72%).
Total trip7h 31mSFO 07:50 to BWI 18:23, 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.