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

Atlanta → Denver via St Louis: arrives on time 90%

  1. 06:50 ATL → 07:30 STL
    WN 3937 · Southwest · 1h 40m · 96% on time, 0.0% cancelled
  2. 1h 12m layover in St Louis (STL) · 45 min minimum on one ticket
  3. 08:42 STL → 10:02 DEN
    WN 3910 · Southwest · 2h 20m · 90% on time, 0.0% cancelled

Total trip 5h 12m, scheduled departure to arrival (Denver is 2 h behind Atlanta). Times are local. Both flew on 40 of the last 56 days.

Makes the connection100%The first flight arrived more than 27 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 1h 12m layover.
Arrives on time90%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (90%).
Total trip5h 12mATL 06:50 to DEN 10:02, 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.