Low-cost carrier JetBlue Airlines (JBLU) on Monday agreed to sell off Spirt Airlines' (SAVE) assets at Newark Liberty and Boston Logan airports, as the airline seeks to win regulators' approval🎃 for a merger with Spirit.

JetBlue will transfer two gates each at Boston and Newark Liberty airports to Allegiant Air (ALGT), an ultra-low-cost carrier. The agreement 🌌wit𝓰h Allegiant also includes 43 takeoff and landing authorizations at Newark, 

JetBlue has also agreed to cede control of five gates at Fort Lauderdale-Hollywood International Airport to the Broward County Aviation Department and will work closely with the department to expand Allegiant's presence at the airport.

The decision came three months after JetBlue agreed to divest all of Spirit Arlines' holdings at New York's LaGuardia Airport to Frontier Airlines (ULCC).

Last year, JetBlue won a bidding war with rival Frontier to win control of Spirit Airlines. Frontier had originally submitted a bid to acquire Spirit in February last year before JetBlue countered with an offer of its own. After months of push-and-pull, Spirit shareholders finally settled on JetBlue's offer in October.

It didn't take long for the merger to run into regulatory hurdles. The Justice Department sued in March to block the merger, on grounds that it could give JetBlue a disproportionate share of the market for low-cost air travel, further concentrate the airline industry into the hands of a few firms, and lead to drastically higher fares for travelers.

If approved, a JetBlue-Spirit merger would create America's fifth-biggest airline and a low-cost juggernaut, just behind heavyweights American (AAL), Southwest (LUV), Delta (DAL), and United (UAL) airlines.

Shares of Spiri💙t Airlines skyrocketed 12% Monday, while those of JetBlue lost 0.4%. Spirit shares are down about 10% so far this year, while those of JetBlue h𝄹ave tumbled 20%.