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

Salt Lake City → Philadelphia via Boston: arrives on time 51%

  1. 09:50 SLC → 16:37 BOS
    DL 657 · Delta · 4h 47m · 82% on time, 1.1% cancelled
  2. 4h 03m layover in Boston (BOS) · 45 min minimum on one ticket
  3. 20:40 BOS → 22:22 PHL
    DL 5610 · Delta, flown by Republic · 1h 42m · 57% on time, 8.3% cancelled

Total trip 10h 32m, scheduled departure to arrival (Philadelphia is 2 h ahead of Salt Lake City). Times are local. Both flew on 48 of the last 56 days.

Makes the connection99%The first flight arrived more than 198 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 4h 03m layover.
Arrives on time51%First flight not cancelled (1.1% are) × connection made (99%) × second flight not cancelled (8.3% are) and within 15 minutes (57%).
Total trip10h 32mSLC 09:50 to PHL 22:22, 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.