Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Las Vegas via Dulles: arrives on time 86%
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08:40 ORD → 11:52 IADUA 2277 · United · 2h 12m · 92% on time, 0.0% cancelled
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1h 08m layover in Dulles (IAD) · 45 min minimum on one ticket
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13:00 IAD → 15:09 LASUA 2156 · United · 5h 09m · 91% on time, 0.4% cancelled
Total trip 8h 29m, scheduled departure to arrival (Las Vegas is 2 h behind Chicago). Times are local. Both flew on 55 of the last 56 days.
Makes the connection95%The first flight arrived more than 23 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 08m layover.
Arrives on time86%First flight not cancelled (0.0% are) × connection made (95%) × second flight not cancelled (0.4% are) and within 15 minutes (91%).
Total trip8h 29mORD 08:40 to LAS 15:09, 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.