Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Nashville via Houston: arrives on time 42%
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12:50 IAD → 15:11 IAHUA 1535 · United · 3h 21m · 84% on time, 0.7% cancelled
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1h 09m layover in Houston (IAH) · 45 min minimum on one ticket
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16:20 IAH → 18:27 BNAUA 2165 · United · 2h 07m · 49% on time, 0.0% cancelled
Total trip 6h 37m, scheduled departure to arrival (Nashville is 1 h behind Dulles). Times are local. Both flew on 55 of the last 56 days.
Makes the connection87%The first flight arrived more than 24 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 1h 09m layover.
Arrives on time42%First flight not cancelled (0.7% are) × connection made (87%) × second flight not cancelled (0.0% are) and within 15 minutes (49%).
Total trip6h 37mIAD 12:50 to BNA 18:27, 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.