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

Boston → Chicago via New York: arrives on time 27%

  1. 17:05 BOS → 18:43 JFK
    DL 5814 · Delta, flown by Republic · 1h 38m · 66% on time, 8.9% cancelled
  2. 52m layover in New York (JFK) · 45 min minimum on one ticket
  3. 19:35 JFK → 21:48 ORD
    DL 5640 · Delta, flown by Republic · 3h 13m · 65% on time, 20.0% cancelled

Total trip 5h 43m, scheduled departure to arrival (Chicago is 1 h behind Boston). Times are local. Both flew on 55 of the last 56 days.

Makes the connection56%The first flight arrived more than 7 minutes late on 44% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time27%First flight not cancelled (8.9% are) × connection made (56%) × second flight not cancelled (20.0% are) and within 15 minutes (65%).
Total trip5h 43mBOS 17:05 to ORD 21:48, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.