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

Boston → Denver via Baltimore: arrives on time 27%

  1. 17:20 BOS → 19:10 BWI
    WN 1898 · Southwest · 1h 50m · 52% on time, 5.3% cancelled
  2. 50m layover in Baltimore (BWI) · 45 min minimum on one ticket
  3. 20:00 BWI → 22:00 DEN
    WN 4214 · Southwest · 4h 00m · 71% on time, 8.8% cancelled

Total trip 6h 40m, scheduled departure to arrival (Denver is 2 h behind Boston). Times are local. Both flew on 32 of the last 56 days.

Makes the connection44%The first flight arrived more than 5 minutes late on 56% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time27%First flight not cancelled (5.3% are) × connection made (44%) × second flight not cancelled (8.8% are) and within 15 minutes (71%).
Total trip6h 40mBOS 17:20 to DEN 22:00, 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.