Seattle to Missoula (SEA-MSO): nonstop upgrade & award space

Alaska Airlines flies nonstop between Seattle (SEA) and Missoula (MSO), roughly 26 times a week. The timetable below shows the nonstop scheduled at 1h 25m to 1h 43m for the 388 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines flights on this route, so you can see which departures have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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26
Flights a week, 4-week average
1h 25m to 1h 43m
Scheduled flight time
388 mi
Nonstop distance
Free
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Seattle to Missoula flight schedule

Scheduled nonstop departures for SEA to MSO starting October 28, 2026, last checked against our schedule feed on October 25, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Seattle (SEA) to Missoula (MSO)
Date Flight Airline Departs SEA Arrives MSO Duration Aircraft
AS 3332Alaska Airlines, Inc.09:5212:261h 34mEmbraer E175
AS 660Alaska Airlines, Inc.12:0714:501h 43mBoeing 737 MAX 9
AS 604Alaska Airlines, Inc.20:2622:541h 28mBoeing 737-800
AS 3332Alaska Airlines, Inc.09:5212:261h 34mEmbraer E175
AS 660Alaska Airlines, Inc.12:0714:501h 43mBoeing 737-800
AS 604Alaska Airlines, Inc.20:2622:541h 28mBoeing 737-900
AS 3332Alaska Airlines, Inc.09:5212:261h 34mEmbraer E175
AS 660Alaska Airlines, Inc.12:0714:501h 43mBoeing 737-900
AS 604Alaska Airlines, Inc.20:2622:541h 28mBoeing 737 MAX 8
AS 3332Alaska Airlines, Inc.09:5212:261h 34mEmbraer E175
AS 660Alaska Airlines, Inc.12:0714:501h 43mBoeing 737 MAX 9
AS 604Alaska Airlines, Inc.20:2022:511h 31mBoeing 737-900
AS 3121Alaska Airlines, Inc.09:5012:221h 32mEmbraer E175
AS 660Alaska Airlines, Inc.12:5715:311h 34mBoeing 737-700
AS 557Alaska Airlines, Inc.18:5321:181h 25mBoeing 737-900
AS 3121Alaska Airlines, Inc.09:5012:221h 32mEmbraer E175
AS 660Alaska Airlines, Inc.12:5715:311h 34mBoeing 737-700
AS 557Alaska Airlines, Inc.18:5321:181h 25mBoeing 737-800
AS 3121Alaska Airlines, Inc.09:5012:221h 32mEmbraer E175
AS 660Alaska Airlines, Inc.12:5715:311h 34mBoeing 737-700
AS 557Alaska Airlines, Inc.18:5321:181h 25mBoeing 737 MAX 9

Showing all 21 scheduled SEA to MSO departures across 7 days with service, starting October 28, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every SEA to MSO date on the interactive map

Aircraft on the Seattle to Missoula nonstop

Alaska Airlines flies the departures in the schedule table on this page with the Embraer E175, the Boeing 737-900, the Boeing 737 MAX 9, the Boeing 737-800, the Boeing 737-700, and the Boeing 737 MAX 8. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on SEA to MSO departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines, segment by segment and date by date. Open the calendar for Seattle to Missoula to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

Alaska Airlines award space was open on all 14 Seattle to Missoula departure dates from October 26 to November 8 that 2LNR checked in the 7 days to October 26, 2026.

See real availability

Confirmed upgrade or award seats by date on the SEA to MSO departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See SEA to MSO on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seattle to Missoula nonstop

Carriers operating SEA to MSO nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See SEA to MSO on the interactive map →

Frequently asked questions about SEA to MSO

How long is the flight from Seattle (SEA) to Missoula (MSO)?
Scheduled flight times from Seattle (SEA) to Missoula (MSO) run from 1h 25m to 1h 43m across the departures in the schedule table on this page. The nonstop covers about 388 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from SEA to MSO?
Alaska Airlines is currently the only airline flying SEA to MSO nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines.
How many flights a week are there from SEA to MSO?
About 26 nonstop flights a week run between Seattle (SEA) and Missoula (MSO) in the current schedule, operated by Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from SEA to MSO depart?
Scheduled SEA to MSO nonstops in the next 7 days with service leave between 09:50 and 20:26, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate SEA to MSO nonstop?
In the schedule table on this page, SEA to MSO nonstops fly as AS 557, AS 604, AS 660, AS 3121, and AS 3332 on Alaska Airlines. The table lists each departure by date with its times and aircraft.
How do I check upgrade or award availability on SEA to MSO?
Open the SEA to MSO route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

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See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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