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

Houston → Newark via Atlanta: arrives on time 39%

  1. 18:34 IAH → 21:54 ATL
    DL 1223 · Delta · 2h 20m · 72% on time, 3.7% cancelled
  2. 46m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:40 ATL → 00:57 EWR +1 day
    DL 2552 · Delta · 2h 18m · 70% on time, 2.6% cancelled

Total trip 5h 24m, scheduled departure to arrival (Newark is 1 h ahead of Houston). Times are local. Both flew on 36 of the last 56 days.

Makes the connection60%The first flight arrived more than 1 minutes late on 40% of the days it flew: too late for the 45-minute minimum connection on a 46m layover.
Arrives on time39%First flight not cancelled (3.7% are) × connection made (60%) × second flight not cancelled (2.6% are) and within 15 minutes (70%).
Total trip5h 24mIAH 18:34 to EWR 00:57, 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.