NSB is the cheapest (but slowest - if you compare with the airport express train Flytoget) way to…read moreget from Oslo airport to Oslo Sentral.
It's clean and if you just to make sure which train leaves first before buying the ticket - Flytoget or NSB - it can be a pretty smart choice.
However, their non functioning WiFi takes away takes away any happiness you might have felt for making a good deal. You can always try to sign in to their wifi, but most likely it will just be a waste of time and won't work anyway. If you do manage, they want your e-mail, phone number, area code (come on!) and need you to create an account.
