Southwest does fly to Bozeman, and I used them when I visited Yellowstone last summer. My friend and I booked pretty last minute, and Southwest had surprisingly reasonable fares. When weather delayed our outbound flight, I called ☎️ to explore earlier options, and the agent walked me through standby choices and rebooking. That call really saved the trip for us. If you’re heading to Bozeman, especially in peak travel season, booking or adjusting plans by phone is the fastest way to lock something in.