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Roundup Airport (RPX/KRPX) is a public general-aviation airport in Musselshell County, Montana, located about two miles northwest of downtown Roundup. It sits at roughly 3,490 feet in the Musselshell River valley and primarily serves private pilots, agricultural aircraft, and visitors heading to the Bull Mountains. There is no scheduled commercial airline service; the field offers a paved runway and basic amenities for transient aircraft.
💡 Local Tip
Frequent visitors know to call ahead for fuel and after-hours access, especially in winter, and to watch for deer and antelope near the runway and access roads. The airport is also a handy base for the Bull Mountains and Musselshell River, but services in Roundup are limited, so top off and stock up before heading out.
🚖 Getting There
You will need a car or a pre-arranged ride: Roundup has no public transit or scheduled airport shuttle, and taxi/rideshare availability is very limited. The airport is a short drive northwest of downtown via local roads; confirm your route and winter road conditions before arrival. Rental cars are typically arranged through nearby Billings or local agencies, so book ahead if you need one.
❓ Frequently Asked Questions
Q: What is the airport code for Roundup Airport?
A: The airport uses IATA code RPX, ICAO code KRPX, and FAA identifier RPX.
Q: Does Roundup Airport have commercial flights?
A: No. Roundup Airport is a general-aviation facility with no scheduled passenger airline service; travelers typically connect through Billings Logan International Airport (BIL) or another regional airport.
Q: What runway and facilities are available?
A: The airport has a paved primary runway (7/25, approximately 4,800 feet) and basic general-aviation services; fuel availability and hours can vary, so call ahead.
Q: How far is Roundup Airport from downtown Roundup?
A: It is about 2 miles northwest of downtown Roundup, roughly a 5-minute drive depending on local roads.
AI-generated content · Generated Oct 1, 2026 · deepseek-v4.1-flash