Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Chicago via San Diego: arrives on time 89%
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16:45 SEA → 19:36 SANAS 1348 · Alaska · 2h 51m · 60% on time, 0.0% cancelled
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3h 04m layover in San Diego (SAN) · 90 min minimum on separate tickets
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22:40 SAN → 04:40 MDW +1 dayWN 257 · Southwest · 4h 00m · 92% on time, 0.0% cancelled
Total trip 9h 55m, scheduled departure to arrival (Chicago is 2 h ahead of Seattle). Times are local. Both flew on 23 of the last 56 days.
Makes the connection96%The first flight arrived more than 94 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 3h 04m layover.
Arrives on time89%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (92%).
Total trip9h 55mSEA 16:45 to MDW 04:40, 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.