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

St Louis → Seattle via Atlanta: arrives on time 76%

  1. 09:24 STL → 12:02 ATL
    DL 1571 · Delta · 1h 38m · 94% on time, 2.9% cancelled
  2. 2h 30m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 14:32 ATL → 16:49 SEA
    DL 481 · Delta · 5h 16m · 80% on time, 0.0% cancelled

Total trip 9h 24m, scheduled departure to arrival (Seattle is 2 h behind St Louis). Times are local. Both flew on 43 of the last 56 days.

Makes the connection99%The first flight arrived more than 105 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 30m layover.
Arrives on time76%First flight not cancelled (2.9% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (80%).
Total trip9h 24mSTL 09:24 to SEA 16:49, 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.