Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Chicago via Atlanta: arrives on time 72%
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11:38 SFO → 19:27 ATLDL 693 · Delta · 4h 51m · 83% on time, 0.0% cancelled
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1h 48m layover in Atlanta (ATL) · 45 min minimum on one ticket
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21:15 ATL → 22:17 MDWDL 1076 · Delta · 2h 02m · 77% on time, 2.5% cancelled
Total trip 8h 39m, scheduled departure to arrival (Chicago is 2 h ahead of San Francisco). Times are local. Both flew on 56 of the last 56 days.
Makes the connection95%The first flight arrived more than 63 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 48m layover.
Arrives on time72%First flight not cancelled (0.0% are) × connection made (95%) × second flight not cancelled (2.5% are) and within 15 minutes (77%).
Total trip8h 39mSFO 11:38 to MDW 22:17, 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.