Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Atlanta via Austin: arrives on time 22%
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18:20 MDW → 20:55 AUSWN 3171 · Southwest · 2h 35m · 53% on time, 0.0% cancelled
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1h 00m layover in Austin (AUS) · 45 min minimum on one ticket
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21:55 AUS → 01:18 ATL +1 dayWN 255 · Southwest · 2h 22m · 42% on time, 0.0% cancelled
Total trip 5h 57m, scheduled departure to arrival (Atlanta is 1 h ahead of Chicago). Times are local. Both flew on 24 of the last 56 days.
Makes the connection53%The first flight arrived more than 15 minutes late on 47% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time22%First flight not cancelled (0.0% are) × connection made (53%) × second flight not cancelled (0.0% are) and within 15 minutes (42%).
Total trip5h 57mMDW 18:20 to ATL 01:18, 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.