Seattle–Tacoma International Airport
Seattle, United StatesSEA / KSEA
International hub · 132 direct destinations · 3 runways · longest runway 11,900 ft
52 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Seattle → Missoula
SEA
SeattleSeattle–Tacoma International Airport
SeattleSeattle–Tacoma International AirportMSOMissoulaMissoula Montana Airport
MissoulaMissoula Montana Airport- Distance
- 388 mi
- Estimated flight time
- ~1h 15m
Missoula is currently 1 hour ahead of Seattle.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 3
- busiest month · Sep
- 1
- quietest month · May
- 55 min
- measured flight time
- 5 / 12
- months seen
Through the year
Per day, month by month
- –Jan2026
- –Feb
- –Mar
- –Apr
- 1May
- 1Jun
- 1Jul
- 1Aug
- 3Sep
- –Oct2025
- –Nov
- –Dec
Airlines
Who flies it
Alaska Airlinessummer
Horizon Airsummer
SkyWest Airlinesnow and then
Through the day
Departure times
Local time in Seattle. Most departures between 08:00 and 11:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0.3Mon
- 0.2Tue
- 0.3Wed
- 0.3Thu
- 0.3Fri
- 0.3Sat
- 0.3Sun
Fleet
Aircraft observed
- Embraer 175E75L52%
- Boeing 737-900B73927%
- Boeing 737 MAX 9B39M24%
- Boeing 737-800B7384%
- Boeing 737-700B7373%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | Not seen in this month. | ||
| February 2026 | Not seen in this month. | ||
| March 2026 | Not seen in this month. | ||
| April 2026 | Not seen in this month. | ||
| May 2026 | 1 | 4 |
|
| June 2026 | 1 | 7 |
|
| July 2026 | 1 | 14 |
|
| August 2026 | 1 | 5 |
|
| September 2026 | 3 | 66 |
|
| October 2025 | Not seen in this month. | ||
| November 2025 | Not seen in this month. | ||
| December 2025 | Not seen in this month. | ||
Airlines observed on this route
From observed callsign routes on SEA-MSO - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Seattle: 132.
- Direct destinations observed from Missoula: 14.
The airports on this route
Missoula Montana Airport
Missoula, United StatesMSO / KMSO
Regional airport · 14 direct destinations · 1 runway · longest runway 9,501 ft
37 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
About the route from Seattle to Missoula
The observed direct connection between Seattle–Tacoma International Airport (SEA) and Missoula Montana Airport (MSO) covers approximately 388 mi. The estimated flight time is around 1h 15m. Alaska Airlines, Horizon Air and SkyWest Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Seattle from Missoula by air?
- The great-circle distance between Seattle–Tacoma International Airport and Missoula Montana Airport is approximately 388 mi.
- How long is the flight from Seattle to Missoula?
- Based on the distance, the estimated flight time is about 1h 15m. This is an estimate, not a schedule.
- Is there a direct connection from Seattle to Missoula?
- Yes, a direct connection between SEA and MSO has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Alaska Airlines, Horizon Air and SkyWest Airlines.
- How often is there a flight from Seattle to Missoula?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 96 observed flights. Mainly Alaska Airlines, Horizon Air, SkyWest Airlines. That is an observation, not a timetable.
- What is the current time difference between Seattle and Missoula?
- Missoula is currently 1 hour ahead of Seattle.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.