The Port of Calais was the first cable ship port in Europe and is the fourth largest port in France and the largest for passenger traffic. The port accounts for more than a third of economic activity of the town of Calais. Cargo traffic has tripled over the past two decades. In 2007 more than 41.5 million tonnes of traffic passed through Calais with some 11.52 million passengers, 1.4 million trucks and trailers, 2.249 million cars and 4,700 crossings a year.] On average, ships sail from the port every 30 minutes.] A new 400 million euro project is underway at the port to create a breakwater protecting a pool of 700 meters long, thus allowing virtually all types of ships to stop at Calais.
As well as the large port, the town is served by three railway stations: Gare de Calais-Fréthun,Gare de Calais-Ville, and Gare des Fontinettes, the former being the first stop on mainland Europe of the Eurostar line. Gare de Calais-Ville is the nearest station to the port with trains to Gare de Boulogne-Ville and either Gare de Lille Flandres or Gare de Lille Europe.
Local bus services are provided by STCE. Free car parking facilities are available in front of the Calais ferry terminal and the maximum stay is of three days. Calais is served by an airport and an airfield. Calais – Dunkerque Airport is located at Marck, 7 kilometres (4.3 mi) east north east of Calais. Saint- Inglevert Airfield is located at Saint-Inglevert, 13 kilometres (8.1 mi) south west of Calais