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

Boston → St Louis via Chicago: arrives on time 87%

  1. 06:00 BOS → 07:58 ORD
    UA 1414 · United · 2h 58m · 95% on time, 2.4% cancelled
  2. 2h 42m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 10:40 ORD → 12:11 STL
    UA 1355 · United · 1h 31m · 91% on time, 2.8% cancelled

Total trip 7h 11m, scheduled departure to arrival (St Louis is 1 h behind Boston). Times are local. Both flew on 56 of the last 56 days.

Makes the connection100%The first flight arrived more than 117 minutes late on <1% of the days it flew: too late for the 45-minute minimum connection on a 2h 42m layover.
Arrives on time87%First flight not cancelled (2.4% are) × connection made (100%) × second flight not cancelled (2.8% are) and within 15 minutes (91%).
Total trip7h 11mBOS 06:00 to STL 12:11, 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.