Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dallas-Fort Worth → Ontario via Denver: arrives on time 89%
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05:18 DFW → 06:31 DENF9 2147 · Frontier · 2h 13m · 90% on time, 0.9% cancelled
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2h 13m layover in Denver (DEN) · 45 min minimum on one ticket
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08:44 DEN → 10:05 ONTF9 2907 · Frontier · 2h 21m · 91% on time, 0.0% cancelled
Total trip 6h 47m, scheduled departure to arrival (Ontario is 2 h behind Dallas-Fort Worth). Times are local. Both flew on 48 of the last 56 days.
Makes the connection99%The first flight arrived more than 88 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 13m layover.
Arrives on time89%First flight not cancelled (0.9% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip6h 47mDFW 05:18 to ONT 10:05, 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.