Yes, there is reliable 24-hour bus service between London Gatwick and central London in 2026. The primary operator is National Express, which runs up to 21 daily coach services, including multiple departures throughout the night. Their A2 and 025 services run 24/7, with the first coach typically leaving the South Terminal at 1:00 AM and arriving at London Victoria Coach Station around 2:15 AM. These coaches offer a budget-friendly alternative to the Gatwick Express train, with fares starting as low as £4 one-way if booked in advance. The coaches are equipped with Wi-Fi, power outlets, and toilets, providing a comfortable transfer for those with late-night arrivals or early-morning departures. Additionally, local Metrobus routes like the "Fastway 10" and "Fastway 20" operate every few minutes 24 hours a day, connecting the airport to nearby towns like Crawley and Horley, though they do not go all the way into central London.