Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boise → Chicago via San Francisco: arrives on time 78%
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19:05 BOI → 19:58 SFOUA 649 · United · 1h 53m · 24% on time, 0.0% cancelled
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3h 32m layover in San Francisco (SFO) · 45 min minimum on one ticket
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23:30 SFO → 05:57 ORD +1 dayUA 368 · United · 4h 27m · 86% on time, 1.4% cancelled
Total trip 9h 52m, scheduled departure to arrival (Chicago is 1 h ahead of Boise). Times are local. Both flew on 56 of the last 56 days.
Makes the connection92%The first flight arrived more than 167 minutes late on 8% of the days it flew: too late for the 45-minute minimum connection on a 3h 32m layover.
Arrives on time78%First flight not cancelled (0.0% are) × connection made (92%) × second flight not cancelled (1.4% are) and within 15 minutes (86%).
Total trip9h 52mBOI 19:05 to ORD 05:57, 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.