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

Seattle → St Louis via Atlanta: arrives on time 79%

  1. 23:59 SEA → 07:46 ATL
    DL 652 · Delta · 4h 47m · 89% on time, 0.6% cancelled
  2. 1h 18m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 09:04 ATL → 09:43 STL +1 day
    DL 1400 · Delta · 1h 42m · 87% on time, 1.9% cancelled

Total trip 7h 47m, scheduled departure to arrival (St Louis is 2 h ahead of Seattle). Times are local. Both flew on 55 of the last 56 days.

Makes the connection94%The first flight arrived more than 33 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 18m layover.
Arrives on time79%First flight not cancelled (0.6% are) × connection made (94%) × second flight not cancelled (1.9% are) and within 15 minutes (87%).
Total trip7h 47mSEA 23:59 to STL 09:43, 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.