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

Boston → Denver via New York: arrives on time 43%

  1. 17:05 BOS → 18:43 JFK
    DL 5814 · Delta, flown by Republic · 1h 38m · 66% on time, 8.9% cancelled
  2. 1h 07m layover in New York (JFK) · 45 min minimum on one ticket
  3. 19:50 JFK → 22:45 DEN
    DL 424 · Delta · 4h 55m · 70% on time, 2.1% cancelled

Total trip 7h 40m, scheduled departure to arrival (Denver is 2 h behind Boston). Times are local. Both flew on 56 of the last 56 days.

Makes the connection68%The first flight arrived more than 22 minutes late on 32% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time43%First flight not cancelled (8.9% are) × connection made (68%) × second flight not cancelled (2.1% are) and within 15 minutes (70%).
Total trip7h 40mBOS 17:05 to DEN 22:45, 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.