Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Fort Lauderdale → Chicago via Atlanta: arrives on time 26%
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17:40 FLL → 20:04 ATLF9 1123 · Frontier · 2h 18m · 45% on time, 3.0% cancelled
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56m layover in Atlanta (ATL) · 45 min minimum on one ticket
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21:00 ATL → 22:03 MDWF9 2291 · Frontier · 2h 04m · 68% on time, 2.4% cancelled
Total trip 5h 24m, scheduled departure to arrival (Chicago is 1 h behind Fort Lauderdale). Times are local. Both flew on 56 of the last 56 days.
Makes the connection41%The first flight arrived more than 11 minutes late on 59% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time26%First flight not cancelled (3.0% are) × connection made (41%) × second flight not cancelled (2.4% are) and within 15 minutes (68%).
Total trip5h 24mFLL 17:40 to MDW 22:03, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.