Reykjavik Keflavík International Airport (IATA code: KEF), also known as Reykjavík–Keflavík Airport, is the largest airport in Iceland. Most international journeys to or from Iceland pass through this airport; in fact, the airport is almost exclusively used for international flights. Most domestic flights use the smaller Reykjavík Airport, which is separate to KEF and located 3 km (1.9 mi) from Reykjavík's city centre.
29 airlines fly to/from KEF, the main carrier being Icelandair, which uses the airport as its main hub. WOW Air was the second-largest Icelandic carrier and provided numerous budget flights to/from Keflavík, until it ceased operations on 28 March 2019.
Expansion
Keflavik International Airport was built by the U.S. military during World War II. A new commercial terminal was developed in 1987, but to meet demand from a growing number of customers, the terminal building is being expanded. Expansion should be completed by 2022.
Interesting Fact: The main terminal building is named after Leif Erikson, the first European to arrive in North America.