Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Chicago via Denver: arrives on time 84%
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05:10 SFO → 08:40 DENWN 1424 · Southwest · 2h 30m · 96% on time, 0.0% cancelled
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1h 20m layover in Denver (DEN) · 45 min minimum on one ticket
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10:00 DEN → 13:25 MDWWN 755 · Southwest · 2h 25m · 89% on time, 1.8% cancelled
Total trip 6h 15m, scheduled departure to arrival (Chicago is 2 h ahead of San Francisco). Times are local. Both flew on 47 of the last 56 days.
Makes the connection96%The first flight arrived more than 35 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time84%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (1.8% are) and within 15 minutes (89%).
Total trip6h 15mSFO 05:10 to MDW 13:25, 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.