Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Detroit → Seattle via San Diego: arrives on time 48%
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16:35 DTW → 18:21 SANDL 369 · Delta · 4h 46m · 74% on time, 0.8% cancelled
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49m layover in San Diego (SAN) · 45 min minimum on one ticket
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19:10 SAN → 22:20 SEADL 2613 · Delta · 3h 10m · 85% on time, 1.5% cancelled
Total trip 8h 45m, scheduled departure to arrival (Seattle is 3 h behind Detroit). Times are local. Both flew on 48 of the last 56 days.
Makes the connection58%The first flight arrived more than 4 minutes late on 42% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time48%First flight not cancelled (0.8% are) × connection made (58%) × second flight not cancelled (1.5% are) and within 15 minutes (85%).
Total trip8h 45mDTW 16:35 to SEA 22:20, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.