Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Oakland → Chicago via Seattle: arrives on time 85%
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17:30 OAK → 19:30 SEAWN 4747 · Southwest · 2h 00m · 47% on time, 0.0% cancelled
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3h 41m layover in Seattle (SEA) · 90 min minimum on separate tickets
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23:11 SEA → 05:18 ORD +1 dayUA 747 · United · 4h 07m · 86% on time, 0.3% cancelled
Total trip 9h 48m, scheduled departure to arrival (Chicago is 2 h ahead of Oakland). Times are local. Both flew on 30 of the last 56 days.
Makes the connection100%The first flight arrived more than 131 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 41m layover.
Arrives on time85%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.3% are) and within 15 minutes (86%).
Total trip9h 48mOAK 17:30 to ORD 05:18, 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.