Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Bozeman → Boston via Chicago: arrives on time 54%
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08:00 BZN → 11:59 ORDUA 1693 · United · 2h 59m · 89% on time, 1.7% cancelled
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54m layover in Chicago (ORD) · 45 min minimum on one ticket
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12:53 ORD → 16:29 BOSUA 794 · United · 2h 36m · 67% on time, 2.8% cancelled
Total trip 6h 29m, scheduled departure to arrival (Boston is 2 h ahead of Bozeman). Times are local. Both flew on 56 of the last 56 days.
Makes the connection85%The first flight arrived more than 9 minutes late on 15% of the days it flew: too late for the 45-minute minimum connection on a 54m layover.
Arrives on time54%First flight not cancelled (1.7% are) × connection made (85%) × second flight not cancelled (2.8% are) and within 15 minutes (67%).
Total trip6h 29mBZN 08:00 to BOS 16:29, 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.