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

Chicago → Boston via New York: arrives on time 20%

  1. 17:35 ORD → 21:00 LGA
    DL 2336 · Delta · 2h 25m · 51% on time, 14.5% cancelled
  2. 59m layover in New York (LGA) · 45 min minimum on one ticket
  3. 21:59 LGA → 23:27 BOS
    DL 2801 · Delta · 1h 28m · 47% on time, 2.1% cancelled

Total trip 4h 52m, 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 connection50%The first flight arrived more than 14 minutes late on 50% of the days it flew: too late for the 45-minute minimum connection on a 59m layover.
Arrives on time20%First flight not cancelled (14.5% are) × connection made (50%) × second flight not cancelled (2.1% are) and within 15 minutes (47%).
Total trip4h 52mORD 17:35 to BOS 23:27, 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.