Allegiant Travel Co., which operates an airline marketed to leisure travelers in small cities, said Monday its Allegiant Air unit is ending charter service to Cuba.

It currently flies for five separate charter programs, and it has given 120-day notice to cancel each of those contracts.

Allegiant said while flying to Cuba has been profitable, "these programs are exposing the airline and its people to operational complexity inconsistent with our operating philosophy."

Allegiant Air expects to return the single aircraft it currently operates to Cuba to other service later this year.

Shares fell 26 cents to $40.71 in midday trading.

Source: CNBC