Southend Airport railway station is on the Shenfield to Southend Line in the East of England, serving London Southend Airport, the village of Sutton and northern parts of Southend-on-Sea. It is 39 mi 44chain down-line from London Liverpool Street and is situated between and . The station is managed by Stobart Rail but the trains are operated by Abellio Greater Anglia. Its three-letter station code is SIA.
The station was opened by the Transport Minister Theresa Villiers in 2011; it was designed by Atkins and constructed by Birse Rail. A new terminal building adjoining the station opened in 2012. Passengers requiring the airport previously had to alight at Rochford and then take road transport.