Wondering about the Sun Country LAX terminal ? Terminal-Guide.com offers a human-written, SEO-optimized 2025 guide confirming Sun Country Airlines checks in at Terminal 1 at Los Angeles International Airport. After check-in, passengers are bused to Terminal B (Tom Bradley International West Gates) for departure. Learn about check-in, baggage handling, lounges, dining, and transportation options to ensure a smooth travel experience. Knowing the exact Sun Country LAX terminal saves time and avoids confusion. Trust Terminal-Guide.com for accurate, up-to-date advice tailored for Sun Country travelers flying through LAX in 2025. Prepare your journey confidently.