Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Chicago via Miami: arrives on time 24%
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11:24 SFO → 20:05 MIAAA 2565 · American · 5h 41m · 58% on time, 0.0% cancelled
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49m layover in Miami (MIA) · 45 min minimum on one ticket
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20:54 MIA → 23:30 ORDAA 1881 · American · 3h 34m · 53% on time, 3.9% cancelled
Total trip 10h 04m, 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 connection47%The first flight arrived more than 4 minutes late on 53% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time24%First flight not cancelled (0.0% are) × connection made (47%) × second flight not cancelled (3.9% are) and within 15 minutes (53%).
Total trip10h 04mSFO 11:24 to ORD 23:30, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.