Wondering What Terminal is AJet Airlines at ARN? AJet Airlines operates from Terminal 1 at Stockholm Arlanda Airport, providing travelers with a smooth and efficient travel experience. The terminal has modern amenities, including speedy check-in counters, pleasant lounges, and a variety of restaurants and shopping options. Whether you're flying for business or pleasure, AJet Airlines at ARN Terminal 1 provides comfort and luxury from beginning to end. AJet Airlines, known for its exceptional service and on-time performance, offers seamless connections to both domestic and international destinations.