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

Boston → St Louis via Atlanta: arrives on time 86%

  1. 08:05 BOS → 10:49 ATL
    DL 923 · Delta · 2h 44m · 88% on time, 1.5% cancelled
  2. 3h 20m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 14:09 ATL → 14:48 STL
    DL 2700 · Delta · 1h 41m · 90% on time, 1.3% cancelled

Total trip 7h 45m, scheduled departure to arrival (St Louis is 1 h behind Boston). Times are local. Both flew on 55 of the last 56 days.

Makes the connection98%The first flight arrived more than 155 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 3h 20m layover.
Arrives on time86%First flight not cancelled (1.5% are) × connection made (98%) × second flight not cancelled (1.3% are) and within 15 minutes (90%).
Total trip7h 45mBOS 08:05 to STL 14:48, 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.