Frontier Airlines is boosting service from Philadelphia International Airport with the addition of three new routes to major US destinations.

The Philadelphia Inquirer reports that the low-cost airline will begin daily nonstop service from Philadelphia to Los Angeles in April 2020, and add daily flights to Boston and thrice-weekly flights to Chicago in May.

Frontier currently serves 20 destinations from Philadelphia and is the fourth-largest airline at the airport in terms of daily departures.

“We have got to a point where we serve so many of the top markets from Philadelphia, we’re becoming a natural choice for customers to look at when they want a good deal,” said Daniel Shurz, the airline’s senior vice president of commercial.

Shurz anticipated that Boston, which Frontier first entered three years ago, would be a strong summer market for flights from Philadelphia. Introductory fares announced on the new route start at $29 one-way.

Frontier also recently announced that it would resume operations at New Castle Airport in Wilmington, Delaware, about 30 miles from Philadelphia. The airline last flew from the airport in 2015.