Frontier Airlines has announced 20 new routes—including six out of Fort Lauderdale-Hollywood International Airport (FLL)—in an effort to win over customers searching for low fares.

The routes to major cities will all begin this winter, between Nov. 20-22.

They include service to the following airports to and from FLL:

Baltimore (BWI)

Dallas (DFW)

Detroit (DTW)

Chicago (ORD)

Houston (IAH)

Charlotte (CLT)

The routes will be offered three times a week, except for service to Houston, which will be offered weekly.

Tickets start as low as $29.

According to CNBC , Frontier Airlines is going after customers of Spirit Airlines , whose financial footing has gotten so shaky in recent weeks that it warned earlier this month it might not be able to survive another year without mor

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