It serves, via a bus link, Liverpool John Lennon Airport in the neighbouring suburb of Speke, as well as providing an interchange between main line services and the Merseyrail rapid transit/commuter rail network.

The second was the line built by the St Helens Railway from Liverpool Lime Street to Warrington Bank Quay, which crossed from northwest to southeast.

At the time of opening, the Merseytravel City Line service (which had been hourly at the former Allerton station) was increased to half-hourly.

From 11 December 2006, the Monday-Saturday evening service on the Northern Line was increased to run every 15 minutes, instead of half-hourly as previously.

In May 2011, Blackpool North services which operated from Lime Street were extended to start and terminate at Liverpool South Parkway.

In early 2017 Liverpool South Parkway served as a temporary hub for national trains whilst Lime Street was closed due to a landslide.

[8] Tom Wileman, regional director of bus operator Stagecoach, described Liverpool South Parkway as a "white elephant".

[12] In June 2009, the station underwent some enhancements,[citation needed] and saw the introduction of a new travel centre and a heated passenger lounge with Wi-Fi internet access, comfortable chairs and free newspapers, adjacent to the café; ticket barriers at both ends of the concourse were also installed.

[citation needed] In November 2016, an MtoGo shop was opened, selling a range of snacks and drinks alongside tickets.

[16][17] This service ceased to serve South Parkway in May 2018, reverting to operate between Liverpool Lime Street and Blackpool North only.

However, platform 4 was temporarily extended in 2017 to permit services operated by Virgin Trains (Avanti's predecessor) to use the station while Lime Street was closed for major engineering works in autumn 2017 and summer 2018.

A shuttle bus formerly provided a link to the National Trust's property at Speke Hall, running weekends and bank holidays between April and September.

[21] At Liverpool South Parkway, the tram-train would leave the existing railway line and seamlessly transfer to a new tramway.

[22] During the presentation, Merseytravel's Senior Head of Service Operations revealed that there were no immediate plans to develop the rail link and its feasibility depended on the airport's passenger numbers increasing.