Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Dulles via Detroit: arrives on time 81%
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06:15 SAN → 13:47 DTWDL 754 · Delta · 4h 32m · 91% on time, 0.5% cancelled
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1h 23m layover in Detroit (DTW) · 45 min minimum on one ticket
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15:10 DTW → 16:42 IADDL 1787 · Delta · 1h 32m · 86% on time, 2.6% cancelled
Total trip 7h 27m, scheduled departure to arrival (Dulles is 3 h ahead of San Diego). Times are local. Both flew on 48 of the last 56 days.
Makes the connection97%The first flight arrived more than 38 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 23m layover.
Arrives on time81%First flight not cancelled (0.5% are) × connection made (97%) × second flight not cancelled (2.6% are) and within 15 minutes (86%).
Total trip7h 27mSAN 06:15 to IAD 16:42, 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.