Answer: False
Explanation:
It is not always more profitable to operate a full flight at a lower cost per ticket because this depends on the unique situation in question. If the tickets are so low that even with the amount of people in the airplane the company is unable to recuperate its cost, then the condition does not hold.
Meanwhile sometimes the partially full price might see the prices being paid would offset the costs of the flight which would bring profits to the company. It therefore depends on the unique situation.
