Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Ontario via Denver: arrives on time 87%
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05:00 SEA → 08:43 DENUA 2601 · United · 2h 43m · 96% on time, 0.7% cancelled
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2h 42m layover in Denver (DEN) · 45 min minimum on one ticket
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11:25 DEN → 12:47 ONTUA 430 · United · 2h 22m · 88% on time, 0.0% cancelled
Total trip 7h 47m, scheduled departure to arrival. Times are local. Both flew on 37 of the last 56 days.
Makes the connection99%The first flight arrived more than 117 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 42m layover.
Arrives on time87%First flight not cancelled (0.7% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip7h 47mSEA 05:00 to ONT 12:47, 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.