From the airport

Hi there!

I would recommend using THIS route for travel between Narita Airport and Asakusa. This route is mainly travelled using non JR lines and buying a normal ticket is the best way. You can then start using your JR Pass a day later the make the most of it.

Hope this helps!
Daniel

Hey,

Thanks for the great link there. If my flight gets in at 8pm how long should customs take and will i be able to still catch these routes. Im just unsure on all the times of trains and transport.

Customs should take around 40-60min maybe quicker if there are no queues. There are trains going to Tokyo until around 11 and there's also a night bus service so you should have no problem getting into town. You can use the link I send you to look up all trains possible :)

thanks mate thats a huge help :)