Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Chicago via Denver: arrives on time 32%
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14:35 SFO → 18:10 DENWN 3641 · Southwest · 2h 35m · 10% on time, 0.0% cancelled
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2h 40m layover in Denver (DEN) · 45 min minimum on one ticket
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20:50 DEN → 00:15 MDW +1 dayWN 1615 · Southwest · 2h 22m · 36% on time, 2.9% cancelled
Total trip 7h 37m, scheduled departure to arrival (Chicago is 2 h ahead of San Francisco). Times are local. Both flew on 32 of the last 56 days.
Makes the connection90%The first flight arrived more than 115 minutes late on 10% of the days it flew: too late for the 45-minute minimum connection on a 2h 40m layover.
Arrives on time32%First flight not cancelled (0.0% are) × connection made (90%) × second flight not cancelled (2.9% are) and within 15 minutes (36%).
Total trip7h 37mSFO 14:35 to MDW 00:15, 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.