Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Dayton via Dulles: arrives on time 74%
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08:40 ORD → 11:52 IADUA 2277 · United · 2h 12m · 92% on time, 0.0% cancelled
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52m layover in Dulles (IAD) · 45 min minimum on one ticket
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12:44 IAD → 14:18 DAYUA 4241 · United, flown by CommuteAir · 1h 34m · 84% on time, 0.7% cancelled
Total trip 4h 38m, scheduled departure to arrival (Dayton is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection89%The first flight arrived more than 7 minutes late on 11% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time74%First flight not cancelled (0.0% are) × connection made (89%) × second flight not cancelled (0.7% are) and within 15 minutes (84%).
Total trip4h 38mORD 08:40 to DAY 14:18, 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.