Coutts/Ross International Airport (FAA LID: 7S8, TC LID: CEP4) is located 0.5 nautical miles (0.93 km; 0.58 mi) west of Coutts, Alberta, Canada and 0.1 NM (0.19 km; 0.12 mi) west of Sweet Grass, Montana, United States.

CBSA officers at this airport can handle general aviation aircraft only, with no more than 15 passengers.

[1] The airport covers an area of 20 acres (8.1 ha) at an elevation of 3,552 ft (1,083 m)[2][1] above mean sea level.

[1][2] For the 12-month period ending August 23, 2008, the airport had 25 general aviation aircraft operations, an average of 2 per month.

[2] Since the Neutrality Acts of the 1930s forbade arms shipments to belligerent countries prior to the entry of the United States into World War II, this airport was used to circumvent these rules by landing planes on the US side and having civilians (and in some cases horses) pull them across the border to Canada, where they could be flown to the United Kingdom.