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

Chicago → Boston via Atlanta: arrives on time 77%

  1. 06:00 MDW → 08:55 ATL
    DL 1285 · Delta · 1h 55m · 90% on time, 2.7% cancelled
  2. 2h 15m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 11:10 ATL → 13:47 BOS
    DL 862 · Delta · 2h 37m · 84% on time, 1.4% cancelled

Total trip 6h 47m, scheduled departure to arrival (Boston is 1 h ahead of Chicago). Times are local. Both flew on 48 of the last 56 days.

Makes the connection95%The first flight arrived more than 90 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 2h 15m layover.
Arrives on time77%First flight not cancelled (2.7% are) × connection made (95%) × second flight not cancelled (1.4% are) and within 15 minutes (84%).
Total trip6h 47mMDW 06:00 to BOS 13:47, 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.