Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Washington via Chicago: arrives on time 91%
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23:05 SEA → 05:00 MDWWN 2304 · Southwest · 3h 55m · 67% on time, 0.0% cancelled
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3h 15m layover in Chicago (MDW) · 45 min minimum on one ticket
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08:15 MDW → 11:10 DCA +1 dayWN 2569 · Southwest · 1h 55m · 91% on time, 0.0% cancelled
Total trip 9h 05m, scheduled departure to arrival (Washington is 3 h ahead of Seattle). Times are local. Both flew on 29 of the last 56 days.
Makes the connection100%The first flight arrived more than 150 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 15m layover.
Arrives on time91%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip9h 05mSEA 23:05 to DCA 11:10, 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.