Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Salt Lake City → Seattle via Los Angeles: arrives on time 77%
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10:20 SLC → 11:22 LAXF9 4129 · Frontier · 2h 02m · 90% on time, 2.9% cancelled
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3h 53m layover in Los Angeles (LAX) · 45 min minimum on one ticket
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15:15 LAX → 18:26 SEAF9 1177 · Frontier · 3h 01m · 82% on time, 3.5% cancelled
Total trip 8h 56m, scheduled departure to arrival (Seattle is 1 h behind Salt Lake City). Times are local. Both flew on 53 of the last 56 days.
Makes the connection99%The first flight arrived more than 188 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 53m layover.
Arrives on time77%First flight not cancelled (2.9% are) × connection made (99%) × second flight not cancelled (3.5% are) and within 15 minutes (82%).
Total trip8h 56mSLC 10:20 to SEA 18:26, 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.