The free service on Thursday, October 26 - which is when the Royal Cremation for the beloved monarch will take place in Sanam Luang and mourners will be allowed to present sandalwood flowers at nine to-scale replicas of the Royal Crematorium and designated flower pavilions across the city - will run until 2am the following day.
Airport Rail Link said that, to deal with increased demand over the period, it had scheduled enough services to ensure a train would reach its stations every 10 minutes.