Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Baltimore → Ontario via Denver: arrives on time 88%
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06:05 BWI → 07:50 DENWN 4436 · Southwest · 3h 45m · 76% on time, 0.0% cancelled
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3h 35m layover in Denver (DEN) · 90 min minimum on separate tickets
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11:25 DEN → 12:47 ONTUA 430 · United · 2h 22m · 88% on time, 0.0% cancelled
Total trip 9h 42m, scheduled departure to arrival (Ontario is 3 h behind Baltimore). Times are local. Both flew on 40 of the last 56 days.
Makes the connection100%The first flight arrived more than 125 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 35m layover.
Arrives on time88%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip9h 42mBWI 06:05 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.