1. United Airlines
7200 Hawkins Creamery Rd, Gaithersburg, MD 20882
Coordinate: 39.24604,-77.14729
Phone: (301) 253-2897
2. Carlson Wagonlit Travel
18201 Flower Hill Way, Gaithersburg, MD 20879
Coordinate: 39.15543,-77.16458
Phone: (301) 590-0923