Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Los Angeles via Denver: arrives on time 89%
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07:45 BOS → 10:19 DENUA 647 · United · 4h 34m · 91% on time, 1.6% cancelled
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3h 07m layover in Denver (DEN) · 45 min minimum on one ticket
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13:26 DEN → 14:57 LAXUA 774 · United · 2h 31m · 91% on time, 0.0% cancelled
Total trip 10h 12m, scheduled departure to arrival (Los Angeles is 3 h behind Boston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection100%The first flight arrived more than 142 minutes late on <1% of the days it flew: too late for the 45-minute minimum connection on a 3h 07m layover.
Arrives on time89%First flight not cancelled (1.6% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip10h 12mBOS 07:45 to LAX 14:57, 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.