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

Chicago → Boston via Detroit: arrives on time 67%

  1. 09:17 MDW → 11:35 DTW
    DL 4674 · Delta, flown by Endeavor · 1h 18m · 84% on time, 0.0% cancelled
  2. 2h 26m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 14:01 DTW → 16:10 BOS
    DL 1171 · Delta · 2h 09m · 70% on time, 1.1% cancelled

Total trip 5h 53m, scheduled departure to arrival (Boston is 1 h ahead of Chicago). Times are local. Both flew on 55 of the last 56 days.

Makes the connection96%The first flight arrived more than 101 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 26m layover.
Arrives on time67%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (1.1% are) and within 15 minutes (70%).
Total trip5h 53mMDW 09:17 to BOS 16:10, 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.