Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dallas-Fort Worth → Houston via Chicago: arrives on time 40%
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14:15 DFW → 16:57 ORDUA 2160 · United · 2h 42m · 63% on time, 0.9% cancelled
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48m layover in Chicago (ORD) · 45 min minimum on one ticket
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17:45 ORD → 20:50 IAHUA 1954 · United · 3h 05m · 77% on time, 1.4% cancelled
Total trip 6h 35m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.
Makes the connection53%The first flight arrived more than 3 minutes late on 47% of the days it flew: too late for the 45-minute minimum connection on a 48m layover.
Arrives on time40%First flight not cancelled (0.9% are) × connection made (53%) × second flight not cancelled (1.4% are) and within 15 minutes (77%).
Total trip6h 35mDFW 14:15 to IAH 20:50, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.