How much will it cost to read from an S3 bucket in the same region but on different account

Question

I read it doesn't cost anything to read data from an S3 bucket on the same region within the same account.

However, I'm interested in how much will it cost to read a GB from a different account's bucket, in the same region.

Answer 1

There will be no Data Transfer cost, since the Amazon EC2 instance and Amazon S3 bucket are in the same region.

The owner of the bucket will be charged for the GET Request ($0.0004 per 1,000 requests). Apart from that, the fact that the bucket belongs to a different AWS Account will not impact cost.