Rail Europe has jumped on Interrail's limited-time sale, and the discounts are genuinely worth a look. Until 10:00 CEST on 30 September, continuous Global Passes valid for one, two or three months are half price, while most other Global and One Country Passes are 15% off. For anyone who has been sitting on a vague plan to cross Europe by train, this is the nudge to actually book it.

The timing is no coincidence. Interrail and Eurail were merged into a single global Interrail brand on 10 September, ending a long-standing split where European residents bought Interrail passes and everyone else had to use Eurail. Now there's one name and one product line, which should make choosing and buying a pass considerably less confusing for first-timers.

The Interrail Pass itself covers rail travel across up to 33 European countries, with two broad styles of pass. Travel-day passes give you a set number of days within a longer window - handy if you want to linger in each city. Continuous passes let you hop on trains as often as you like for the whole duration, which suits fast-moving itineraries or long sabbaticals. The current promotion applies to the continuous one-, two- and three-month Global Passes at the deepest cut of 50%, so long-haul trips are where the savings really land.

To give a sense of scale: a two-month continuous Global Pass, normally one of the pricier options in the range, effectively becomes half the usual cost - enough to change the maths on whether you fly between cities or take the scenic route. One Country Passes, which cover a single country's rail network, get a smaller 15% trim but still suit travellers who'd rather spend two weeks deep-diving one place than racing across the continent.

A few things to keep in mind before you buy. Passes typically cover train travel but not always seat reservations, and high-speed services in France, Italy and Spain often require them - so budget for supplements on those routes. The sale window is tight, running only from 24 September through the morning of 30 September, and it's being sold via Rail Europe as well as Interrail's own channels. Passes usually come with a validity window after purchase, so buying now for a spring or summer trip is generally fine.

Why it matters: rail passes shine when you're covering serious ground - a multi-country loop, an Interlaken-to-Prague summer, a slow ride down from the Nordics. If your trip is just Paris and back, point-to-point tickets are often cheaper. But for anyone planning three or more stops across Europe, a half-price continuous pass could easily save a few hundred euros. Check the exact pass terms and reservation rules before the 30 September deadline.