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

St Louis → Seattle via Atlanta: arrives on time 68%

  1. 09:24 STL → 12:02 ATL
    DL 1571 · Delta · 1h 38m · 94% on time, 2.9% cancelled
  2. 4h 43m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 16:45 ATL → 19:04 SEA
    DL 472 · Delta · 5h 19m · 70% on time, 0.0% cancelled

Total trip 11h 40m, 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 connection100%The first flight arrived more than 238 minutes late on <1% of the days it flew: too late for the 45-minute minimum connection on a 4h 43m layover.
Arrives on time68%First flight not cancelled (2.9% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (70%).
Total trip11h 40mSTL 09:24 to SEA 19:04, 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.