Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Phoenix via Dallas-Fort Worth: arrives on time 63%
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19:03 STL → 21:00 DFWF9 4741 · Frontier · 1h 57m · 72% on time, 1.6% cancelled
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1h 20m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
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22:20 DFW → 22:59 PHXF9 4655 · Frontier · 2h 36m · 76% on time, 2.5% cancelled
Total trip 5h 53m, scheduled departure to arrival (Phoenix is 2 h behind St Louis). Times are local. Both flew on 21 of the last 56 days.
Makes the connection87%The first flight arrived more than 35 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time63%First flight not cancelled (1.6% are) × connection made (87%) × second flight not cancelled (2.5% are) and within 15 minutes (76%).
Total trip5h 53mSTL 19:03 to PHX 22:59, 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.