Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
AS 3100 · Missoula (MSO) → Seattle (SEA)
Sold by Alaska, flown by SkyWest. Still flying: 52 of the last 56 days (Daily).
Arrives on time81%within 15 minutes, of 52 flights
Cancelled0.0%of scheduled flights
An hour or more late2%of flights that operated
When late, on average30 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Seattle is 1 h behind Missoula).
- Leaves MSO
- 11:22
- Arrives SEA
- 12:02
- Flight time
- 1h 40m
- 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 MSO
All flights leaving Missoula (MSO) at 11 am–12 pm, wherever they’re going: 90% left within 15 minutes and 0.0% were cancelled (83 flights in the year). Other Alaska flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.