Redhill lies at the junction of the A23 and A25 roads. The junction of the M25 and M23 motorways is near Redhill, but there is no direct access to either motorway from Redhill. The nearest junctions are Reigate Hill (M25), Merstham (M23) and Godstone (M25).
Redhill railway station is at the junction of three lines, the main London to Brighton line, the North Downs Line running from Reading to Redhill, and the Redhill to Tonbridge Line.
The London to Brighton line is electrified and is operated by trains belonging to the Southern and First Capital Connect operating companies as well as (very occasional) CrossCountry diesel services from Manchester and Birmingham to Gatwick Airport and Brighton. The line splits north of Redhill at Coulsdon and rejoins to the south of Redhill allowing most fast services to bypass Redhill. London-bound trains usually go to either London Victoria or London Bridge. Coming out of London, trains for Redhill usually go on Horsham, Portsmouth Harbour, Three Bridges or Gatwick Airport.
First Capital Connect operates the ‘Thameslink’ service which goes through London, calling at London Blackfriars, City Thameslink, Farringdon and Kings Cross Thameslink, then continues north to Luton Airport and Bedford. There is a very limited service at Redhill.
The line to the west is electrified as far as Reigate, with some services from London terminating there. Through trains to Dorking, Guildford and Reading are run by First Great Western and are diesel. Trains to stations to Tonbridge to the east, are run by South Eastern. Most diesel services from the North Downs Line go on to Gatwick Airport.
Numerous bus services are operated to the town, by Arriva, Metrobus and Southdown PSV. In May 2008, route 100 to Crawley became part of the Fastway bus rapid transport system, following redevelopment of the town bus station. The new number 100 bus stop is located at the entrance to Park25. Number 100 Bus Rout Map ~ PARK 25. For Live departures click here
Air access is available at Redhill Aerodrome (EGKR) off the A23 1.5Nm south east of Redhill town and at London Gatwick Airport which lies about seven miles to the south on the A23. Heathrow airport is less than an hour’s drive to the west and both Luton and London City airports are accessible by train.
Source: Wikipedia