Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
AS 2109 · Seattle (SEA) → Boise (BOI)
Sold by Alaska, flown by Horizon. Still flying: 52 of the last 56 days (Daily).
Arrives on time82%within 15 minutes, of 138 flights
Cancelled0.7%of scheduled flights
An hour or more late2%of flights that operated
When late, on average54 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Boise is 1 h ahead of Seattle).
- Leaves SEA
- 17:40
- Arrives BOI
- 20:07
- Flight time
- 1h 27m
- Days flown, last 8 weeks
- 52 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at SEA
All flights leaving Seattle (SEA) at 5–6 pm, wherever they’re going: 77% left within 15 minutes and 0.9% were cancelled (12,513 flights in the year). Other Alaska flights on this route →
Upcoming forecasts
This flight isn’t in our published forecasts for the next few days.