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

Seattle → Boise via Salt Lake City: arrives on time 91%

  1. 05:30 SEA → 08:30 SLC
    DL 1128 · Delta · 2h 00m · 94% on time, 0.5% cancelled
  2. 2h 30m layover in Salt Lake City (SLC) · 45 min minimum on one ticket
  3. 11:00 SLC → 12:15 BOI
    DL 1442 · Delta · 1h 17m · 93% on time, 0.0% cancelled

Total trip 5h 47m, scheduled departure to arrival (Boise is 1 h ahead of Seattle). Times are local. Both flew on 55 of the last 56 days.

Makes the connection98%The first flight arrived more than 105 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 30m layover.
Arrives on time91%First flight not cancelled (0.5% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (93%).
Total trip5h 47mSEA 05:30 to BOI 12:15, 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.