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

Boston → Bozeman via Chicago: arrives on time 41%

  1. 17:00 BOS → 19:00 ORD
    UA 2040 · United · 3h 00m · 55% on time, 2.5% cancelled
  2. 1h 15m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 20:15 ORD → 22:43 BZN
    UA 533 · United · 3h 28m · 58% on time, 1.7% cancelled

Total trip 7h 43m, scheduled departure to arrival (Bozeman is 2 h behind Boston). Times are local. Both flew on 55 of the last 56 days.

Makes the connection73%The first flight arrived more than 30 minutes late on 27% of the days it flew: too late for the 45-minute minimum connection on a 1h 15m layover.
Arrives on time41%First flight not cancelled (2.5% are) × connection made (73%) × second flight not cancelled (1.7% are) and within 15 minutes (58%).
Total trip7h 43mBOS 17:00 to BZN 22:43, 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.