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

Boston → Kansas City via Denver: arrives on time 84%

  1. 07:45 BOS → 10:19 DEN
    UA 647 · United · 4h 34m · 91% on time, 1.6% cancelled
  2. 2h 11m layover in Denver (DEN) · 90 min minimum on separate tickets
  3. 12:30 DEN → 15:05 MCI
    WN 351 · Southwest · 1h 35m · 88% on time, 0.0% cancelled

Total trip 8h 20m, scheduled departure to arrival (Kansas City is 1 h behind Boston). Times are local. Both flew on 47 of the last 56 days.

Makes the connection97%The first flight arrived more than 41 minutes late on 3% of the days it flew: too late for the 90-minute minimum connection on a 2h 11m layover.
Arrives on time84%First flight not cancelled (1.6% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip8h 20mBOS 07:45 to MCI 15:05, layover included

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.