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

Chicago → Boston via Atlanta: arrives on time 48%

  1. 12:50 MDW → 15:49 ATL
    DL 2417 · Delta · 2h 02m · 86% on time, 3.4% cancelled
  2. 59m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 16:48 ATL → 19:36 BOS
    DL 518 · Delta · 2h 47m · 59% on time, 1.4% cancelled

Total trip 5h 45m, scheduled departure to arrival (Boston is 1 h ahead of Chicago). Times are local. Both flew on 53 of the last 56 days.

Makes the connection85%The first flight arrived more than 14 minutes late on 15% of the days it flew: too late for the 45-minute minimum connection on a 59m layover.
Arrives on time48%First flight not cancelled (3.4% are) × connection made (85%) × second flight not cancelled (1.4% are) and within 15 minutes (59%).
Total trip5h 45mMDW 12:50 to BOS 19:36, 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.