One word for a portion is "stage" which also refers to a period during which certain activities take place. This term is used for the Tour de France.
Another word is "leg" of a journey or race.
trip
Trip
journey ... voyage ... trip
Journey or expedition.
A long trip, a voyage, an adventure, a vacation, and others.
excursion, journey, outing, trip, course
As a noun: trek, journey, flight, run, service call, junket, slip, fall, spill tumble, blunder, blooper, boner, hallucination As a verb: stumble, founder, journey, travel, commute, activate, set off, spark, initiate, trigger, actuate
fallStumblealso: Journey; as in: I'm going on a journey, or, I'm going on a trip.
An expedition would be a trip, journey, or travel.
Another word for trip is:CruiseErrandExcursionExpeditionForayGetawayJauntJourneyOutingRunTourTravelTrekVoyageWeekend
The noun 'trip' is a word for a thing; a word for a journey; a word for a stumble.The word 'trip' is also a verb: trip, trips, tripping, tripped.
The definition for the word journey is to travel not to home but to a place going to Utah from Florida. Driving to Utah from Forida would be real nice trip .But driving to one state to another would be considered a journey