To get away = Partir
e.g.
I need to get away to somewhere sunny !

To look forward = Avoir hâte de
e.g.
I look forward to welcoming you at the airport

To check in = S’enregistrer
e.g.
I need to check in before my flight.

To get on = Embarquer
e.g.
I get on my flight at 4 o’clock.

To take off = Décoller
e.g.
My flight takes off at half past 4.

To get off = Débarquer
e.g.
I get off my flight at 9 o’clock.

To get back to = Retourner
e.g.
I get back to England on Friday.