Final answer:
Frontier Airlines has the Airbus A320 in their fleet, not the larger A380, A330, or A350 models. The A320 fits their low-cost operational model with its efficiency and fuel savings.
Step-by-step explanation:
Frontier Airlines operates the Airbus A320 in their fleet. The Airbus A320 is a popular narrow-body aircraft that many airlines around the world use for short to medium-haul flights. While the Airbus A380 is known for being the largest commercial jetliner, capable of carrying up to 850 passengers, it is not part of Frontier's fleet, which focuses on more cost-efficient, single-aisle aircraft like the A320. Frontier chooses aircraft that align with their budget-friendly business model, prioritizing efficiency and fuel savings over the larger capacity planes such as the A330, A350, or A380.
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