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

Houston → Boston via Atlanta: arrives on time 53%

  1. 18:34 IAH → 21:54 ATL
    DL 1223 · Delta · 2h 20m · 72% on time, 3.7% cancelled
  2. 56m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:50 ATL → 01:31 BOS +1 day
    DL 865 · Delta · 2h 41m · 80% on time, 2.8% cancelled

Total trip 5h 57m, scheduled departure to arrival (Boston is 1 h ahead of Houston). Times are local. Both flew on 36 of the last 56 days.

Makes the connection70%The first flight arrived more than 11 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time53%First flight not cancelled (3.7% are) × connection made (70%) × second flight not cancelled (2.8% are) and within 15 minutes (80%).
Total trip5h 57mIAH 18:34 to BOS 01:31, 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.