Free Wi-Fi? Free checked bag? Free snacks? On Spirit ?

The Florida-based carrier that is practically synonymous with budget air travel in the U.S. said Tuesday that it plans to offer packages for its highest-priced tickets, wrapping in perks it used to charge for a la carte. It's a bid to increase revenue as it struggles with the aftermath of a U.S.-blocked takeover by JetBlue , engine recalls, an oversupplied domestic market, and larger rivals who have capitalized on premium and cost-conscious travelers alike.

Starting late next month, Spirit will offer four categories of service:

"Go Big" Tickets will include a spot in one of the airline's Big Front Seats, its roomy seats at the front of its Airbus planes. Instead of upselling travelers for the seat alone, the assignment will come with free Wi-Fi, a checked bag, one piece of cabin luggage, and, CEO Ted Christie told CNBC, "unlimited" snacks and drinks, including alcoholic beverages.

Below that package is "Go Comfy," which will offer travelers a seat with standard legroom but a blocked middle seat for extra space. That offer also includes earlier boarding, one snack, one nonalcoholic beverage, and checked baggage and a carry-on.

"Go Savvy" fares come with either a checked bag or a carry-on.

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