Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → San Antonio via Dulles: arrives on time 81%
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23:20 SEA → 07:22 IADUA 264 · United · 5h 02m · 91% on time, 4.5% cancelled
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1h 03m layover in Dulles (IAD) · 45 min minimum on one ticket
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08:25 IAD → 10:59 SAT +1 dayUA 1789 · United · 3h 34m · 94% on time, 0.7% cancelled
Total trip 9h 39m, scheduled departure to arrival (San Antonio is 2 h ahead of Seattle). Times are local. Both flew on 34 of the last 56 days.
Makes the connection91%The first flight arrived more than 18 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 1h 03m layover.
Arrives on time81%First flight not cancelled (4.5% are) × connection made (91%) × second flight not cancelled (0.7% are) and within 15 minutes (94%).
Total trip9h 39mSEA 23:20 to SAT 10:59, 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.