Fly around the surface of Earth once non-stop in a 747? 
It would take around 2 days.

Fly around the Sun once non-stop in a 747? 
Around 6 months.

Fly once around the largest star discovered in a 747?
1,200 years.

Fly across the Milky Way once in a 747?

120 billion years.

jframe42:

Fly around Brazil in a 747?
A Brazilian years.