Yes Lingfield is easy to get to, the most popular ways are:
Train – the easiest way to get to Lingfield Park Racecourse is undoubtedly by train – because the station is directly adjacent to the venue! Trains run from London Victoria and take just 45 mins direct.
Car – there is free parking on-site, but traffic gets busy on race days, so arrive early to avoid congestion. Details for your sat nav are Racecourse Road, Lingfield, Surrey, RH7 6PQ
Air – helicopters can arrive on the course by prior arrangement, but most flying choose to do so into London Gatwick airport, which is just 10 miles away.