Virail has the magic trick to find your cheap train tickets to Duffield. You just need to enter your travel dates and set the filters for departure and price according to your preferences. Once you choose the best travel options for your train from London to Duffield, virail will redirect you automatically to the provider's website for the purchase.
Among all virail partners, you will also be able to travel with Nationalrail, serving the train route between London and Duffield.
National Rail belongs to the Rail Delivery group, the British company managing passenger services. National Rail covers not only long and medium-distance routes, but also local networks, for instance part of the London underground.
Booking in advance really allows you to save some money: in fact, you can get cheap train tickets from London to Duffield also for only 27,00 €, while the average price is 62,25 €.