Via the green line: Basingstoke/Guildford – Woking – Heathrow – Paddington
Trains would operate every half hour from Basingstoke, Farnborough, and Guildford, and every 15 minutes from Woking, to Heathrow, with journey times faster than road. Heathrow Southern Railway is more than just an airport rail link as after Heathrow these trains would continue to Old Oak Common and Paddington creating new connections to HS2 and the Elizabeth Line.
Some trains could set out from as far away as the Solent or Dorset.