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

Seattle → St Louis via Atlanta: arrives on time 78%

  1. 06:00 SEA → 13:49 ATL
    DL 569 · Delta · 4h 49m · 95% on time, 0.3% cancelled
  2. 2h 16m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 16:05 ATL → 16:48 STL
    DL 543 · Delta · 1h 43m · 81% on time, 2.7% cancelled

Total trip 8h 48m, scheduled departure to arrival (St Louis is 2 h ahead of Seattle). Times are local. Both flew on 1 of the last 56 days, too few to list among the best connections.

Makes the connection100%The first flight arrived more than 91 minutes late on <1% of the days it flew: too late for the 45-minute minimum connection on a 2h 16m layover.
Arrives on time78%First flight not cancelled (0.3% are) × connection made (100%) × second flight not cancelled (2.7% are) and within 15 minutes (81%).
Total trip8h 48mSEA 06:00 to STL 16:48, 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.