Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Las Vegas via San Diego: arrives on time 86%
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18:00 IAD → 20:23 SANUA 2054 · United · 5h 23m · 83% on time, 0.6% cancelled
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2h 17m layover in San Diego (SAN) · 90 min minimum on separate tickets
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22:40 SAN → 00:12 LAS +1 dayWN 3510 · Southwest · 1h 32m · 100% on time, 7.7% cancelled
Total trip 9h 12m, scheduled departure to arrival (Las Vegas is 3 h behind Dulles). Times are local. Both flew on 24 of the last 56 days.
Makes the connection93%The first flight arrived more than 47 minutes late on 7% of the days it flew: too late for the 90-minute minimum connection on a 2h 17m layover.
Arrives on time86%First flight not cancelled (0.6% are) × connection made (93%) × second flight not cancelled (7.7% are) and within 15 minutes (100%).
Total trip9h 12mIAD 18:00 to LAS 00:12, 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.