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

Salt Lake City → Boston via Chicago: arrives on time 42%

  1. 16:18 SLC → 20:40 ORD
    UA 2072 · United · 3h 22m · 66% on time, 2.8% cancelled
  2. 1h 01m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 21:41 ORD → 01:14 BOS +1 day
    UA 1779 · United · 2h 33m · 68% on time, 3.7% cancelled

Total trip 6h 56m, scheduled departure to arrival (Boston is 2 h ahead of Salt Lake City). Times are local. Both flew on 52 of the last 56 days.

Makes the connection67%The first flight arrived more than 16 minutes late on 33% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time42%First flight not cancelled (2.8% are) × connection made (67%) × second flight not cancelled (3.7% are) and within 15 minutes (68%).
Total trip6h 56mSLC 16:18 to BOS 01:14, 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.