tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Boston → Chicago via St Louis: arrives on time 89%

  1. 05:50 BOS → 07:45 STL
    WN 752 · Southwest · 2h 55m · 100% on time, 0.0% cancelled
  2. 2h 35m layover in St Louis (STL) · 90 min minimum on separate tickets
  3. 10:20 STL → 11:52 ORD
    UA 4517 · United, flown by GoJet · 1h 32m · 90% on time, 1.4% cancelled

Total trip 7h 02m, scheduled departure to arrival (Chicago 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 65 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 2h 35m layover.
Arrives on time89%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (1.4% are) and within 15 minutes (90%).
Total trip7h 02mBOS 05:50 to ORD 11:52, 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.