Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Columbus via Detroit: arrives on time 82%
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08:35 IAD → 10:14 DTWUA 6137 · United, flown by Mesa · 1h 39m · 90% on time, 0.4% cancelled
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2h 04m layover in Detroit (DTW) · 90 min minimum on separate tickets
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12:18 DTW → 13:27 CMHDL 5774 · Delta, flown by Republic · 1h 09m · 90% on time, 1.2% cancelled
Total trip 4h 52m, scheduled departure to arrival. Times are local. Both flew on 39 of the last 56 days.
Makes the connection92%The first flight arrived more than 34 minutes late on 8% of the days it flew: too late for the 90-minute minimum connection on a 2h 04m layover.
Arrives on time82%First flight not cancelled (0.4% are) × connection made (92%) × second flight not cancelled (1.2% are) and within 15 minutes (90%).
Total trip4h 52mIAD 08:35 to CMH 13:27, 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.