15 days in 2 months. Travel on as many trains as you like on each of your 15 travel days – perfect for visiting 14–16 destinations. You can use your 15 travel days any time within 2 months of your start date. Spread them out or use them back-to-back – it's up to you.

The "15 days within 2 months" Interrail Global Pass is a flexible "flexi-pass" designed for travelers who want to explore Europe over a longer period without traveling by train every single day. Under this pass, you have a total of 15 "travel days" that you can use at any time within a 60-day window starting from your chosen activation date. A travel day lasts from midnight to midnight, during which you can board as many trains as you like on the participating European rail networks. This pass is particularly popular for "slow travel" itineraries where a traveler might spend 3 or 4 days in a major city like Berlin or Prague before using a travel day to move to the next destination. It is important to note that while the pass covers the "base fare" for trains, high-speed and overnight trains (like the Eurostar or TGV) still require a separate, mandatory seat reservation fee. You manage the pass through the "Eurail/Interrail Rail Planner" app, where you must "activate" each travel day before boarding your first train of the day. This provides a balance of structure and freedom, allowing for spontaneous changes over a two-month summer adventure.