Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Long Beach → Dulles via Denver: arrives on time 68%
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09:45 LGB → 13:00 DENWN 4238 · Southwest · 2h 15m · 84% on time, 0.0% cancelled
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2h 40m layover in Denver (DEN) · 90 min minimum on separate tickets
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15:40 DEN → 21:11 IADUA 421 · United · 3h 31m · 71% on time, 0.0% cancelled
Total trip 8h 26m, scheduled departure to arrival (Dulles is 3 h ahead of Long Beach). Times are local. Both flew on 55 of the last 56 days.
Makes the connection96%The first flight arrived more than 70 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 2h 40m layover.
Arrives on time68%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (71%).
Total trip8h 26mLGB 09:45 to IAD 21:11, 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.