Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dallas → Dulles via Austin: arrives on time 85%
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12:20 DAL → 13:20 AUSWN 931 · Southwest · 1h 00m · 68% on time, 3.8% cancelled
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3h 40m layover in Austin (AUS) · 90 min minimum on separate tickets
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17:00 AUS → 21:19 IADUA 376 · United · 3h 19m · 89% on time, 0.7% cancelled
Total trip 7h 59m, scheduled departure to arrival (Dulles is 1 h ahead of Dallas). Times are local. Both flew on 23 of the last 56 days.
Makes the connection100%The first flight arrived more than 130 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 40m layover.
Arrives on time85%First flight not cancelled (3.8% are) × connection made (100%) × second flight not cancelled (0.7% are) and within 15 minutes (89%).
Total trip7h 59mDAL 12:20 to IAD 21:19, 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.