Keflavík International Airport (Icelandic: Keflavíkurflugvöllur) (IATA: KEF, ICAO: BIKF), also known as Reykjavík-Keflavík Airport, is the largest airport in Iceland and the country’s main hub for international transportation. It is situated 1.7 NM (3.1 km; 2.0 mi) west of Keflavík and 50 km (31 mi) south-west of Reykjavík. The airport has two runways and the airport area is about 25 km² (9.7 sq mi). Most international journeys to or from Iceland pass through this airport.

The main carriers at Keflavík are Icelandair and Iceland Express, who make the airport their main hub. The airport is only an international airport, all domestic flights are flown from Reykjavík Airport, which lies within 3 km (1.9 mi) from Reykjavík’s city centre. Keflavík Airport is operated by Isavia, a government enterprise.