Allegiant continues push into major cities, with new Chicago, Boston, Houston flights

Budget carrier Allegiant Air is growing again, announcing 44 new nonstop routes including its first Chicago, Boston and Houston flights.

The Las Vegas-based airline, known for its cheap tickets and lengthy lineup of fees, called it the largest expansion in company history. Allegiant added 15 Airbus jets to its fleet last year and plans to add more this year.

The seasonal flights, which will begin in the spring, are aimed at vacationers, Allegiant's bread and butter. Each will be offered twice a week. Unlike its larger competitors, which offer daily service between cities, Allegiant generally flies each route just a couple times a week.

The airline has reported consistent profits from shuttling vacationers with nonstop flights from smaller towns to warm-weather destinations such as Florida, Arizona and Las Vegas, but has broadened that focus to include other popular metropolitan spots including Nashville. Allegiant began service in Nashville in 2018 and is adding nine new routes from the airport in the expansion announced Tuesday.

The new Chicago, Boston and Houston flights continue that trend.

Allegiant is offering introductory one-way fares online ranging from $33 to $66 on the new routes, but seats and travel dates are limited and tickets must be purchased by Jan. 16. Travel dates vary. Sale fares tend to get scooped up quickly.

Details on Allegiant Air's new routes 

Chicago Midway International Airport

To and from:

Allentown, Pennsylvania: Flights begin May 14, with one-way fares starting at $33.

Des Moines, Iowa: Flights begin May 21, with one-way fares starting at $33.

Savannah, Georgia: Flights begin May 21, with one-way fares starting at $33.

Asheville, North Carolina: Flights begin May 21, with one-way fares starting at $33.

Knoxville, Tennessee: Flights begin May 21, with one-way fares starting at $33.

Destin/Fort Walton Beach, Florida: Flights begin June 5, with one-way fares starting at $33.

Boston Logan International Airport

To and from:

Grand Rapids, Michigan: Flights begin May 7, with one-way fares starting at $33.

Asheville, North Carolina: Flights begin May 8, with one-way fares starting at $33.

Knoxville, Tennessee: Flights begin May 8, with one-way fares starting at $33.

Destin/Fort Walton Beach, Florida: Flights begin May 14, with one-way fares starting at $33.

Houston's William P. Hobby Airport 

To and from:

Knoxville, Tennessee: Flights begin May 21, with one-way fares starting at $33.

Asheville, North Carolina: Flights begin May 22, with one-way fares starting at $33.

Savannah, Georgia: Flights begin May 28, with one-way fares starting at $33.

Destin/Fort Walton Beach, Florida: Flights begin June 5, with one-way fares starting at $33.

Nashville International Airport

To and from:

Bozeman, Montana: Flights begin May 21 with one-way fares starting at $66.

Sioux Falls, South Dakota: Flights begin May 21, with one-way fares starting at $55.

Norfolk, Virginia: Flights begin May 22, with one-way fares starting at $44.

Pittsburgh: Flights begin May 22, with one-way fares starting at $44.

Peoria, Illinois: Flights begin June 4, with one-way fares starting at $44.

Tulsa, Oklahoma: Flights begin June 4, with one-way fares starting at $44.

Fargo, North Dakota: Flights begin June 4, with one-way fares starting at $55.

Flint, Michigan: Flights begin June 5, with one-way fares starting at $55.

Greensboro, North Carolina: Flights begin June 5, with one-way fares starting at $44.

Austin-Bergstrom International Airport

To and from:

Des Moines, Iowa: Flights begin May 21, with one-way fares starting at $55.

Asheville, North Carolina: Flights begin May 22, with one-way fares starting at $55.

Knoxville, Tennessee: Flights begin May 22, with one-way fares starting at $55.

Grand Rapids, Michigan: Flights begin May 22, with one-way fares starting at $55.

For a complete list of Allegiant's new routes and introductory fares, check the airline's website.