tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Denver → Boston via Indianapolis: arrives on time 43%

  1. 19:30 DEN → 12:32 IND
    WN 1211 · Southwest · 2h 32m · 37% on time, 2.0% cancelled
  2. 2h 13m layover in Indianapolis (IND) · 90 min minimum on separate tickets
  3. 14:45 IND → 17:13 BOS
    AA 4368 · American, flown by Republic · 2h 26m · 76% on time, 4.4% cancelled

Total trip -259m, scheduled departure to arrival (Boston is 2 h ahead of Denver). Times are local. Both flew on 48 of the last 56 days.

Makes the connection60%The first flight arrived more than 43 minutes late on 40% of the days it flew: too late for the 90-minute minimum connection on a 2h 13m layover.
Arrives on time43%First flight not cancelled (2.0% are) × connection made (60%) × second flight not cancelled (4.4% are) and within 15 minutes (76%).
Total trip-259mDEN 19:30 to BOS 17:13, 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.