Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Phoenix via Boise: arrives on time 93%
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08:40 ORD → 11:28 BOIUA 2137 · United · 3h 48m · 86% on time, 0.0% cancelled
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3h 27m layover in Boise (BOI) · 90 min minimum on separate tickets
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14:55 BOI → 16:14 PHXAS 3095 · Alaska, flown by SkyWest · 2h 19m · 96% on time, 0.0% cancelled
Total trip 9h 34m, scheduled departure to arrival (Phoenix is 2 h behind Chicago). Times are local. Both flew on 36 of the last 56 days.
Makes the connection97%The first flight arrived more than 117 minutes late on 3% of the days it flew: too late for the 90-minute minimum connection on a 3h 27m layover.
Arrives on time93%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (96%).
Total trip9h 34mORD 08:40 to PHX 16:14, 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.