Frontier is launching 18 new routes to Florida and beyond with a special focus on rival Spirit's home airport of Fort Lauderdale — see the full list

• Frontier Airlines is expanding its network with 18 new routes across the US, Mexico, and the Caribbean.
• The airline will start service in two new cities, including Fort Lauderdale and Aguadilla, Puerto Rico.

Frontier Airlines is fueling the competition in Fort Lauderdale as it goes head-to-head with its low-cost rival Spirit Airlines.

Frontier announced on Tuesday that it is expanding its network with 18 new routes across the US, Mexico, and the Caribbean, with fares starting at $19 one-way. The airline is expanding service in Cancun, Mexico, and San Juan, Puerto Rico, and adding two new cities to its route map, including Fort Lauderdale, Florida, and Aguadilla, Puerto Rico.

The company's main focus is on Fort Lauderdale-Hollywood International Airport, which is an all-new destination. According to the carrier, it will launch 12 new routes out of the city come mid-February, applying pressure on Spirit's home turf.

According to statistics from the airport, Spirit Airlines has the greatest market share at Fort Lauderdale, having transported over 750,000 passengers in October, up 13.7% from 2019.

However, Frontier is making moves to shake things up and add low-cost competition to the market. According to the carrier, it will compete with Spirit on three routes out of Fort Lauderdale, including Atlanta, Orlando, and Philadelphia.

Frontier's senior vice president of commercial, Daniel Shurz explained in a press release that the new routes will "complement" its already booming network across Mexico, the Caribbean, and South Florida.

"We're excited to announce 18 nonstop routes today and two new destinations; Aguadilla and Fort Lauderdale," Shurz said. "We look forward to welcoming travelers onboard to these popular vacation destinations this winter, and beyond."

Here is a closer look at Frontier's 18 new routes.

Between Fort Lauderdale and Atlanta, Georgia

Frontier will fly daily between Fort Lauderdale and Atlanta beginning February 17. The route will see competition from Spirit, JetBlue, Delta, American, and Southwest. One-way introductory fares start at $29.

Between Fort Lauderdale and Buffalo, New York

Frontier will fly daily between Fort Lauderdale and Buffalo beginning February 17. Southwest and JetBlue will be the route's competitors. One-way introductory fares start at $49.

Between Fort Lauderdale and Islip, New York

Frontier will fly daily between Fort Lauderdale and Islip beginning February 17. Southwest will be the airline's sole competitor. One-way introductory fares start at $39.

Between Fort Lauderdale and Orlando, Florida

Frontier will fly the short hop between Fort Lauderdale and Orlando daily beginning February 17. The airline will compete with Southwest, Spirit, and Silver on the route. One-way introductory fares start at $19.

Between Fort Lauderdale and Philadelphia, Pennsylvania

Frontier will fly daily between Fort Lauderdale and Philadelphia beginning February 17. American, Spirit, and JetBlue with be the airline's competitors. One-way introductory fares start at $39.

Between Fort Lauderdale and Providence, Rhode Island

Frontier will fly daily between Fort Lauderdale and Providence beginning February 17. JetBlue will be the sole competitor. One-way introductory fares start at $59.

Between Fort Lauderdale and Stewart, New York

Frontier will fly thrice-weekly between Fort Lauderdale and Stewart beginning February 17. The airline will be the route's only operator. One-way introductory fares start at $59.

Between Fort Lauderdale and Trenton, New Jersey

Frontier will fly daily between Fort Lauderdale and Trenton beginning February 17. The airline will face no competition. One-way introductory fares start at $49.

Between Fort Lauderdale and Albany, New York

Frontier will fly thrice-weekly between Fort Lauderdale and Albany beginning February 18. The airline will compete with JetBlue. One-way introductory fares start at $49.

Between Fort Lauderdale and Rochester, New York

Frontier will fly thrice-weekly between Fort Lauderdale and Rochester beginning February 18. The airline will face no competition on the route. One-way introductory fares start at $49.

Between Fort Lauderdale and Green Bay, Wisconsin

Frontier will fly once weekly between Fort Lauderdale and Green Bay beginning February 19. The airline will be the route's sole operator. One-way introductory fares start at $49.

Between Fort Lauderdale and Portland, Maine

Frontier will fly once weekly between Fort Lauderdale and Portland beginning February 19. The airline will face no competition. One-way introductory fares start at $49.

Between Cancun and Hartford, Connecticut

Frontier will fly thrice-weekly between Cancun and Hartford beginning February 17. The airline will compete with JetBlue on the route. One-way introductory fares to Cancun start at $99.

Between Cancun and Buffalo, New York

Frontier will fly thrice-weekly between Cancun and Buffalo beginning February 18. The airline will face no competition. One-way introductory fares to Cancun start at $99.

Between Cancun and Providence, Rhode Island

Frontier will fly once weekly between Cancun and Providence beginning February 19. The airline will be the only operator. One-way introductory fares to Cancun start at $99.

Between San Juan and Boston, Massachusetts

Frontier will fly four-times-weekly between San Juan and Boston beginning February 17. The airline will compete with Spirit and JetBlue on the route. One-way introductory fares to Cancun start at $79.

Between San Juan and Hartford, Connecticut

Frontier will fly thrice-weekly between San Juan and Hartford beginning February 18. The airline will face competition from JetBlue. One-way introductory fares to Cancun start at $79.

Between Aguadilla, Puerto Rico and Orlando, Florida

Frontier will fly thrice-weekly between San Juan and Orlando beginning March 24. The airline will compete with Spirit and JetBlue. One-way introductory fares to Cancun start at $59.