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

Los Angeles → Boston via Chicago: arrives on time 38%

  1. 11:40 LAX → 18:12 ORD
    AA 1050 · American · 4h 32m · 61% on time, 2.8% cancelled
  2. 1h 08m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 19:20 ORD → 22:53 BOS
    AA 3107 · American · 2h 37m · 56% on time, 1.4% cancelled

Total trip 8h 17m, scheduled departure to arrival (Boston is 3 h ahead of Los Angeles). Times are local. Both flew on 56 of the last 56 days.

Makes the connection70%The first flight arrived more than 23 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 1h 08m layover.
Arrives on time38%First flight not cancelled (2.8% are) × connection made (70%) × second flight not cancelled (1.4% are) and within 15 minutes (56%).
Total trip8h 17mLAX 11:40 to BOS 22:53, 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.