Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Houston via Denver: arrives on time 77%
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07:05 ORD → 08:55 DENUA 1217 · United · 2h 50m · 92% on time, 0.0% cancelled
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3h 35m layover in Denver (DEN) · 90 min minimum on separate tickets
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12:30 DEN → 16:05 HOUWN 1544 · Southwest · 2h 35m · 79% on time, 0.0% cancelled
Total trip 9h 00m, scheduled departure to arrival. Times are local. Both flew on 40 of the last 56 days.
Makes the connection98%The first flight arrived more than 125 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 3h 35m layover.
Arrives on time77%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (79%).
Total trip9h 00mORD 07:05 to HOU 16:05, 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.