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

Boston → New York via Chicago: arrives on time 26%

  1. 15:10 BOS → 17:20 ORD
    AA 872 · American · 3h 10m · 62% on time, 4.8% cancelled
  2. 1h 00m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 18:20 ORD → 21:36 LGA
    AA 1724 · American · 2h 21m · 49% on time, 12.5% cancelled

Total trip 6h 31m, scheduled departure to arrival. Times are local. Both flew on 26 of the last 56 days.

Makes the connection62%The first flight arrived more than 15 minutes late on 38% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time26%First flight not cancelled (4.8% are) × connection made (62%) × second flight not cancelled (12.5% are) and within 15 minutes (49%).
Total trip6h 31mBOS 15:10 to LGA 21:36, 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.