Duat Travel is a type of magic used by magicians. Skilled magicians can travel through the Duat and arrive at their destination in the mortal world in a short span of time.
Amos can travel from London to Brooklyn, New York in a couple of hours. Although to journey through long distances, a traveling item is needed like Amos' boat.
Carter and Sadie can also use this, by tapping into the powers of Horus and Isis respectively, but can only pass through small spaces, like into Menshikov's palace.