Answer: hybrid-disruption strategy.
Step-by-step explanation:
The hybrid disruption strategy is a startegy that occurs when the high end and low end are mixed together. It is a stepping stone that is vital to survive and prosper in the market. An example of hybrid disruption startegy is Amazon.
Amazon started out as a low end disruption and eventually ended up creating their own niche due to the growth of the company. The strategy used in the question by JetBlue is a hybrid disruption strategy.