Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Missoula → San Diego via Chicago: arrives on time 65%
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12:34 MSO → 17:05 ORDUA 636 · United · 3h 31m · 84% on time, 4.2% cancelled
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3h 00m layover in Chicago (ORD) · 45 min minimum on one ticket
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20:05 ORD → 22:34 SANUA 1531 · United · 4h 29m · 77% on time, 2.8% cancelled
Total trip 11h 00m, scheduled departure to arrival (San Diego is 1 h behind Missoula). Times are local. Both flew on 36 of the last 56 days.
Makes the connection91%The first flight arrived more than 135 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 3h 00m layover.
Arrives on time65%First flight not cancelled (4.2% are) × connection made (91%) × second flight not cancelled (2.8% are) and within 15 minutes (77%).
Total trip11h 00mMSO 12:34 to SAN 22:34, 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.