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

Portland → St Louis via Atlanta: arrives on time 80%

  1. 11:40 PDX → 19:26 ATL
    DL 539 · Delta · 4h 46m · 86% on time, 1.0% cancelled
  2. 3h 44m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 23:10 ATL → 23:53 STL
    DL 1403 · Delta · 1h 46m · 83% on time, 1.8% cancelled

Total trip 10h 16m, scheduled departure to arrival (St Louis is 2 h ahead of Portland). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 179 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 44m layover.
Arrives on time80%First flight not cancelled (1.0% are) × connection made (99%) × second flight not cancelled (1.8% are) and within 15 minutes (83%).
Total trip10h 16mPDX 11:40 to STL 23:53, 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.