No, everybody needs to buy an Interrail pass. The UK is still geographically located in Europe. The validity area isn't restricted at all to the European Union borders : Norway, Switzerland and the UK are for example fully included and use Interrail.
Eurail and Interrail exactly cost the same but one is in € and the other in $.
myinterrail.co.uk offers a bit cheaper passes btw
Another question : when are you travelling ? Eurostar and TGV to Barcelona are very popular so book well in advance. Keep in mind that you need to add seat reservations :
- 30€ Eurostar (passholders quota)
- 35€ TGV Paris - Barcelona
- 10€ AVE Barcelona - Malaga
However regular tickets are very expensive anyway...
@thibcabe - thanks so much for your answer that clears the confusion up on my part. We are hoping to travel in August so it might likely be too late …..anyway i will check this out more now appreciate it! :)
Unfortunately you cannot check Eurostar availability on interrail.eu until you've bought a pass so check here : https://www.b-europe.com/EN/Booking/Pass#TravelWish
Do not hesitate for questions mentioning your travel date, I'll gladly help. It should still be possible to travel, maybe unless on a Sunday. Definitely book ASAP though.
There are a few alternatives, for example :
- if London - Paris is full check London - Lille
- if Paris - Barcelona is full check Paris - Montpellier and cross the border using regional trains
- etc.
As long as regular tickets are available on sncf-connect.com, seats are available.