Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Billings via Denver: arrives on time 73%
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14:33 ORD → 16:31 DENUA 2803 · United · 2h 58m · 76% on time, 0.0% cancelled
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3h 09m layover in Denver (DEN) · 45 min minimum on one ticket
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19:40 DEN → 21:17 BILUA 1417 · United · 1h 37m · 80% on time, 0.4% cancelled
Total trip 7h 44m, scheduled departure to arrival (Billings is 1 h behind Chicago). Times are local. Both flew on 55 of the last 56 days.
Makes the connection91%The first flight arrived more than 144 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 3h 09m layover.
Arrives on time73%First flight not cancelled (0.0% are) × connection made (91%) × second flight not cancelled (0.4% are) and within 15 minutes (80%).
Total trip7h 44mORD 14:33 to BIL 21:17, 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.