[Matata]

Originally Posted by CliffFletcher

Well, we know there are several chokepoints (not to mention thousands of miles) between Winterfell and King's Landing. The Neck and Moat Cailin. The Twins. The Trident. Harrenhal and the God's Eye. Their strategic importance has been painstakingly established earlier in the series.

Which is why I expect we'll have a scene of an army departing Winterfell, followed by a scene with said army forming up outside the walls of King's Landing.