tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

St Louis → Dulles via Kansas City: arrives on time 89%

  1. 08:10 STL → 09:15 MCI
    WN 3943 · Southwest · 1h 05m · 94% on time, 0.0% cancelled
  2. 3h 15m layover in Kansas City (MCI) · 90 min minimum on separate tickets
  3. 12:30 MCI → 16:03 IAD
    UA 688 · United · 2h 33m · 92% on time, 2.7% cancelled

Total trip 6h 53m, scheduled departure to arrival (Dulles is 1 h ahead of St Louis). Times are local. Both flew on 21 of the last 56 days.

Makes the connection100%The first flight arrived more than 105 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 15m layover.
Arrives on time89%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (2.7% are) and within 15 minutes (92%).
Total trip6h 53mSTL 08:10 to IAD 16:03, 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.