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

Boise → Seattle via Salt Lake City: arrives on time 30%

  1. 18:42 BOI → 19:57 SLC
    DL 2920 · Delta · 1h 15m · 81% on time, 1.2% cancelled
  2. 47m layover in Salt Lake City (SLC) · 45 min minimum on one ticket
  3. 20:44 SLC → 22:05 SEA
    DL 2016 · Delta · 2h 21m · 46% on time, 1.2% cancelled

Total trip 4h 23m, scheduled departure to arrival (Seattle is 1 h behind Boise). Times are local. Both flew on 55 of the last 56 days.

Makes the connection68%The first flight arrived more than 2 minutes late on 32% of the days it flew: too late for the 45-minute minimum connection on a 47m layover.
Arrives on time30%First flight not cancelled (1.2% are) × connection made (68%) × second flight not cancelled (1.2% are) and within 15 minutes (46%).
Total trip4h 23mBOI 18:42 to SEA 22:05, 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.