The lack of scheduled posts in Blogger is one of the major motivators to switch to Wordpress. However, listening to users, Blogger did enable scheduled post eventually allowing users to schedule posts to publish later.

Why Using Scheduled Posts is Recommended
If you are a blogger like me with a large subscriber list, you might need to schedule posts.  You might sit down and write everything at one time, but do you want everything all published in the same minute?  Instead, use post scheduling to divide out your posts and give reasons to come back a few times in the same day to your blog.

Use Scheduled Posts for Vacation Days
Sure we all need a break once in awhile, but we also want to make sure our blog is updated daily, use scheduled posts to update your blog even when you are away.  Just because you go on vacation, take a day off, or whatever else, doesn’t mean your blog has to sit devoid of new content.

As I am flying from Frankurt, Germany to Michigan tomorrow, I’ll be flying all day without a chance to use internet. My solution? Using scheduled posts to update my blogs while I fly.