Need to know about Sun Country Airlines LAX terminal? Terminal-Guide.com explains Sun Country Airlines passengers check in at Terminal 1 at Los Angeles International Airport. After check-in, travelers are shuttled to Terminal B (Tom Bradley International West Gates) for departure. Terminal 1 is currently undergoing major upgrades, including new ticket counters and baggage carousels to enhance the passenger experience. Our guide covers check-in procedures, shuttle details, and airport amenities to help you navigate LAX smoothly and stress-free. Whether departing or connecting, Terminal-Guide.com offers reliable, traveler-friendly info on Sun Country Airlines LAX terminal for confident trip planning.