Keflavík Airport, also known as Reykjavík–Keflavík Airport, is the largest airport in Iceland and the country's main hub for international transportation. The airport is 1.7 nautical miles west of Keflavík and 50 km (30 mi) southwest of Reykjavík. The airport has three runways, two of which are in use, and the airport area is about 25 km2 (10 sq mi). Most international journeys to or from Iceland pass through this airport.

Icelandair is the flag carrier of Iceland, with its corporate head office on the property of Reykjavík Airport in the capital city Reykjavík. It is part of the Icelandair Group and operates to destinations on both sides of the Atlantic Ocean from its main hub at Keflavík International Airport. The geographical position of Iceland is convenient for one-stop transatlantic flights via the Atlantic Bridge route, which is one pillar of the airline's business strategy, along with traffic to, from, and within the country.