The app of tripdotcom'has always had a good number of cheap flights in their catalog especially within Europe where budget airlines have flourished. Europe also has a very wide railway network and the two have always competed mainly in terms of cost and speed. If you want speed at higher cost, flying is the best option for you. If you want to travel cheaply but don’t mind the long wait, trains it is. But with the Europe sale on Tripp, it is very common to find routes where the flights are cheaper than the trains, so you get both speed and save money. Use codes [TFEU] and [TFUK] to get 7£ off of your flights within Europe.