Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → San Antonio via Newark: arrives on time 83%
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06:33 IAD → 07:52 EWRUA 2147 · United · 1h 19m · 97% on time, 2.7% cancelled
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1h 37m layover in Newark (EWR) · 45 min minimum on one ticket
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09:29 EWR → 12:30 SATUA 591 · United · 4h 01m · 87% on time, 0.9% cancelled
Total trip 6h 57m, scheduled departure to arrival (San Antonio is 1 h behind Dulles). Times are local. Both flew on 27 of the last 56 days.
Makes the connection98%The first flight arrived more than 52 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 37m layover.
Arrives on time83%First flight not cancelled (2.7% are) × connection made (98%) × second flight not cancelled (0.9% are) and within 15 minutes (87%).
Total trip6h 57mIAD 06:33 to SAT 12:30, 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.