The phrase "last leg of the trip" is a correct and usable phrase in written English. You can use it to refer to the final stage of a journey or voyage. Example sentence: I'm looking forward to the last leg of the trip, which is a three-day road trip down the coast.
The second and last leg of the trip was to Berlin.
The last leg of the trip, however, promised to be the most challenging.
If driving is an option — like on that last leg of the trip to Aspen, Colo.
To gather ourselves for the last leg of the trip down the estuary to the ocean.
Obama is due to fly to the Philippines on Monday for the last leg of the weeklong trip.
At the controls for the final leg of the trip was Bertrand Piccard, the project's initiator.
In the final leg of the trip, he walked 668 miles from Georgia to Washington, D.C.
Thanks to Ludwig my first paper got accepted! The editor wrote me that my manuscript was well-written
Listya Utami K.
PhD Student in Biology, Bandung Institute of Technology, Indonesia