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

Boston → Portland via Denver: arrives on time 7%

  1. 17:30 BOS → 20:10 DEN
    WN 742 · Southwest · 4h 40m · 29% on time, 0.0% cancelled
  2. 55m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 21:05 DEN → 22:45 PDX
    WN 1671 · Southwest · 2h 42m · 32% on time, 0.0% cancelled

Total trip 8h 17m, scheduled departure to arrival (Portland is 3 h behind Boston). Times are local. Both flew on 32 of the last 56 days.

Makes the connection21%The first flight arrived more than 10 minutes late on 79% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time7%First flight not cancelled (0.0% are) × connection made (21%) × second flight not cancelled (0.0% are) and within 15 minutes (32%).
Total trip8h 17mBOS 17:30 to PDX 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.