Allegiant Air.
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- Allegiant Air is expanding its network to spring break destinations with nine new routes across the US.
- The company is focusing on leisure hotspots like Arizona, Florida, and Colorado.
- Allegiant will face competition on just one of the new routes, with United competing on service to Denver.
Allegiant Air is adding more options for spring breakers with its latest network expansion to leisure destinations in places like Arizona and Florida.