United Parcel Services Airlines

United Parcel Service Airlines (5X/UPS) is an American cargo airline based in Louisville, Kentucky. It flies to over 810 destinations, making it the largest airline based on destinations served, more than double that of second-place FedEx. UPS operates the B747-400F, B747-8F and B767-300F to Singapore as 5X35/99 and 5X166/167/168.