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

Los Angeles → Boston via Detroit: arrives on time 63%

  1. 05:30 LAX → 12:56 DTW
    DL 2399 · Delta · 4h 26m · 90% on time, 0.5% cancelled
  2. 1h 05m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 14:01 DTW → 16:10 BOS
    DL 1171 · Delta · 2h 09m · 70% on time, 1.1% cancelled

Total trip 7h 40m, scheduled departure to arrival (Boston is 3 h ahead of Los Angeles). Times are local. Both flew on 44 of the last 56 days.

Makes the connection92%The first flight arrived more than 20 minutes late on 8% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time63%First flight not cancelled (0.5% are) × connection made (92%) × second flight not cancelled (1.1% are) and within 15 minutes (70%).
Total trip7h 40mLAX 05:30 to BOS 16:10, 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.