Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Atlanta → Chicago via Denver: arrives on time 18%

  1. 18:20 ATL → 19:40 DEN
    WN 3002 · Southwest · 3h 20m · 44% on time, 0.0% cancelled
  2. 1h 10m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 20:50 DEN → 00:15 MDW +1 day
    WN 1615 · Southwest · 2h 22m · 36% on time, 2.9% cancelled

Total trip 6h 52m, scheduled departure to arrival (Chicago is 1 h behind Atlanta). Times are local. Both flew on 32 of the last 56 days.

Makes the connection51%The first flight arrived more than 25 minutes late on 49% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time18%First flight not cancelled (0.0% are) × connection made (51%) × second flight not cancelled (2.9% are) and within 15 minutes (36%).
Total trip6h 52mATL 18:20 to MDW 00:15, 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.