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

Boston → Denver via St Louis: arrives on time 89%

  1. 05:50 BOS → 07:45 STL
    WN 752 · Southwest · 2h 55m · 100% on time, 0.0% cancelled
  2. 57m 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 6h 12m, scheduled departure to arrival (Denver is 2 h behind Boston). Times are local. Both flew on 48 of the last 56 days.

Makes the connection99%The first flight arrived more than 12 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 57m layover.
Arrives on time89%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (90%).
Total trip6h 12mBOS 05:50 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.