Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Nashville via Detroit: arrives on time 80%
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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 11m layover in Detroit (DTW) · 90 min minimum on separate tickets
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12:25 DTW → 13:06 BNADL 1557 · Delta · 1h 41m · 89% on time, 2.0% cancelled
Total trip 5h 31m, scheduled departure to arrival (Nashville is 1 h behind Dulles). Times are local. Both flew on 38 of the last 56 days.
Makes the connection92%The first flight arrived more than 41 minutes late on 8% of the days it flew: too late for the 90-minute minimum connection on a 2h 11m layover.
Arrives on time80%First flight not cancelled (0.4% are) × connection made (92%) × second flight not cancelled (2.0% are) and within 15 minutes (89%).
Total trip5h 31mIAD 08:35 to BNA 13:06, 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.