Missoula International Airport (MSO) serves western Montana from a single-terminal layout with two concourses, handling both commercial and general aviation traffic. Carriers with regular service include Alaska Airlines, American Airlines, Delta Air Lines and United Airlines, offering frequent flights to regional hubs such as Seattle, Denver, Minneapolis and Salt Lake City, plus seasonal leisure connections. Travelers can check the online flight board for arrivals and departures and should allow extra time for winter conditions, rental-car pickup and TSA screening at the compact but busy facility.
Frequently asked questions
The IATA airport code for Missoula International Airport is MSO.
The ICAO code for Missoula International Airport is KMSO.
Missoula International Airport (MSO) is located in Missoula, United States.
The local time zone at Missoula International Airport (MSO) is America/Denver (GMT-6).
About 40 scheduled departures were counted at Missoula International Airport (MSO) when flight schedules were last measured on July 19, 2026.
For international flights, arrive at least 3 hours before departure; for domestic flights, about 2 hours.
The board on this page shows arrivals and departures for Missoula International Airport (MSO). It re-checks for updates while the page is open, and every board states how old its data is — busy hubs are refreshed within hours, quieter airports less often.