Frontier Airlines is expanding its network once again by announcing 22 new routes this week. In this expansion, Frontier is adding its 106th city in Boston (BOS) and additional flights to/from Las Vegas (LAS), Orlando (MCO), Philadelphia (PHL), and Raleigh (RDU). New service begins this spring and intro fares are as low as $57 roundtrip.

New Frontier Airlines Service for Boston, Las Vegas, Orlando, Philadelphia, and Raleigh

The new routes begin in either April or the beginning of May and are operated on select days each week. I've included which days of the week Frontier will fly each route, but intro fares are only available for travel on Tuesdays, Wednesdays, and Saturdays, depending on days of service, through mid-June. Some of the lowest fares to/from Raleigh may have availability through early August.

New nonstop service on Frontier Airlines to/from Boston

Tickets must be booked by 11:59 pm ET, January 10, 2019.

Mondays / Wednesdays / Fridays / Saturdays, starting April 19; Daily starting April 30.

Boston to Orlando $77 roundtrip

Mondays / Wednesdays / Fridays / Saturdays, starting May 1.

Boston to Raleigh $107 roundtrip

New nonstop service on Frontier Airlines to/from Las Vegas

Tickets must be booked by 11:59 pm ET, January 9, 2019.

Daily starting April 30.

Las Vegas to Philadelphia $117 roundtrip

Sundays / Tuesdays / Thursdays, starting April 30.

Houston to Las Vegas $77 roundtrip

Detroit to Las Vegas $97 roundtrip

Sundays / Mondays / Tuesdays / Thursdays / Fridays, starting April 30.

San Diego to Las Vegas $57 roundtrip

Mondays / Wednesdays / Fridays / Saturdays, starting May 1.

Dallas to Las Vegas $77 roundtrip

New nonstop service on Frontier Airlines to/from Philadelphia

Tickets must be booked by 11:59 pm ET, January 9, 2019.

Daily starting April 30.

Philadelphia to Las Vegas $117 roundtrip

Sundays / Tuesdays / Thursdays, starting April 30.

Philadelphia to Myrtle Beach $57 roundtrip

Philadelphia to Atlanta $77 roundtrip

Philadelphia to Raleigh $87 roundtrip

Mondays / Wednesdays / Fridays, starting May 1.

Philadelphia to Pensacola $77 roundtrip

New nonstop service on Frontier Airlines to/from Orlando

Tickets must be booked by 11:59 pm ET, January 10, 2019.

Sundays / Tuesdays / Thursdays, starting April 11.

Baltimore to Orlando $57 roundtrip

Mondays / Wednesdays / Fridays / Saturdays, starting April 19; Daily starting April 30.

Orlando to Boston $77 roundtrip

Sundays / Tuesdays / Thursdays, starting April 30.

Houston to Orlando $77 roundtrip

Mondays / Wednesdays / Fridays / Saturdays, starting May 1.

Dallas to Orlando $77 roundtrip

Hartford to Orlando $77 roundtrip

Mondays / Wednesdays / Saturdays, starting May 1.

Orlando to Punta Cana $215 roundtrip

New nonstop service on Frontier Airlines to/from Raleigh

Fares are subject to change at any time and are available for travel through early August.

Sundays / Tuesdays / Thursdays, starting April 30.

Raleigh to Jacksonville $67 roundtrip

Long Island-Islip to Raleigh $67 roundtrip

Albany to Raleigh $77 roundtrip

Hartford to Raleigh $77 roundtrip

Raleigh to Philadelphia $87 roundtrip

Mondays / Wednesdays / Fridays / Saturdays, starting May 1.

Columbus to Raleigh $67 roundtrip

Raleigh to Boston $107 roundtrip

Raleigh to Tampa $107 roundtrip

These fares all work in reverse as well. Keep in mind that Frontier charges extra for any bags larger than a personal item (small backpack, briefcase, large purse, etc.). Pack super light to get the lowest price. Checked bag fees start at $25-$30 each way. Larger carry-on bag fees start at $30-$35 each way.

This is a small change in strategy for Frontier with many routes competing directly with America's other ultra-low-cost carrier Spirit Airlines. In the past Frontier has been known to add new service on routes that were lacking nonstop service, but with this expansion, it appears Frontier is focusing on more popular routes. Look for other airlines to lower prices in response and sign up for fare alerts to find out when prices drop.

Featured image via Shutterstock.

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