Helsinki Airport or Helsinki-Vantaa Airport (IATA: HEL, ICAO: EFHK) (Finnish: Helsinki-Vantaan lentoasema, Swedish: Helsingfors-Vanda flygplats) in Vantaa, Finland, is the main international airport of the Helsinki metropolitan region and the whole of Finland. It is located about 5 kilometres (3 mi) from the centre of Vantaa, Tikkurila, and 9.2 NM (17.0 km; 10.6 mi) north of Helsinki city centre. Originally built for the 1952 Summer Olympics in Helsinki, the airport served 13,426,901 passengers in 2008 (2.2% growth since 2007) and it is the fourth largest airport in the Nordic countries.

The airport is operated by Finavia, the state-owned enterprise that operates Finland's airports. Helsinki Airport was chosen the best airport in the world in the IATA 1999 survey on the topic. In 2006 global airport customer satisfaction survey AETRA ranked Helsinki Airport one of the best airports worldwide and according to Association of European Airlines 2005 delay rates, Helsinki Airport was the most punctual airport in Europe.

The airport's three runways provide a platform for future growth while the airport can accommodate extra-wide aircraft such as the Airbus A340 and Airbus A350, the former already in service and the latter being scheduled to enter service at Helsinki Airport with Finnair in the coming decade. The airport is the international and domestic hub for Finnair, the Finnish flag carrier. It is also the hub for Blue1, the Finnish regional division of SAS. Air Finland and Finncomm Airlines are based at Helsinki Airport as well.

The Aviapolis is a new international business park adjacent to the Helsinki airport area, already hosting the operations of numerous companies around the airport. Several hotels are located near the airport as well. Construction of a train link, Kehärata, to the centre of Helsinki began in the spring of 2009. The Finnish Aviation Museum is located near the airport.

On 25 November 2008, Finavia opened a wireless network free of charge at the Helsinki-Vantaa airport.

The 05.10.2010, Norwegian Air Shuttle decided to open his own base in Helsinki Airport and open up to 13 destinations in 2011 including regional operations to Oulu Airport (4x day) and to Rovaniemi Airport (1x day). This is the 4th International airline that will manage a hub at Helsinki.