Source: Frontier Airlines

Ultra-low fare carrier Frontier Airlines will launch an additional 14 routes this spring, including its return to Boise Airport in Idaho (BOI) and Spokane International Airport in Washington (GEG), along with new ultra-low cost service from coast to coast and the Caribbean. To celebrate, America’s Greenest Airline is offering fares as low as $19*.

“Our continued network growth is a win for consumers as we offer more nonstop destinations, both domestically and internationally, at our signature ultra-low fares,” Flyr said. “With new affordable travel options across the continental U.S. and Puerto Rico—which join our already expansive network—budget-savvy consumers will be able to do and see more for less with Frontier this year.”

New service from Austin-Bergstrom International Airport (AUS):

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SERVICE START:

SERVICE FREQUENCY:

INTRO FARE:

Miami (MIA)

May 22, 2025

3x/week

$39*

Philadelphia (PHL)

May 22, 2025

3x/week

$49*

New service from Nashville International Airport (BNA):

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INTRO FARE:

Cleveland (CLE)

May 23, 2025

3x/week

$29*

New service from Boise Airport (BOI):

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Denver (DEN)

May 15, 2025

3x/week

$29*

New service from Boston Logan International Airport (BOS):

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Cleveland (CLE)

May 22, 2025

3x/week

$29*

New service from Rafael Hernández Airport (BQN):

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INTRO FARE:

Miami (MIA)

May 24, 2025

Weekly

$59

New service from Cleveland Hopkins International Airport (CLE):

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SERVICE FREQUENCY:

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Boston (BOS)

May 22, 2025

3x/week

$29*

Nashville (BNA)

May 23, 2025

3x/week

$29*

New service from Denver International Airport (DEN):

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SERVICE FREQUENCY:

INTRO FARE:

Boise, Idaho (BOI)

May 15, 2025

3x/week

$29*

Spokane, Wash. (GEG)

May 20, 2025

3x/week

$29*

New service from Dallas Fort Worth International Airport (DFW):

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SERVICE START:

SERVICE FREQUENCY:

INTRO FARE:

Washington Dulles (IAD)

May 22, 2025

Daily

$29*

Norfolk, Va. (ORF)

May 22, 2025

2x/week

$29*

New service from Spokane International Airport (GEG):

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SERVICE START:

SERVICE FREQUENCY:

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Denver (DEN)

May 20, 2025

3x/week

$29*

New service from Washington Dulles International Airport (IAD):

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SERVICE FREQUENCY:

INTRO FARE:

Dallas-Fort Worth (DFW)

May 22, 2025

Daily

$29*

Miami (MIA)

May 22, 2025

Daily

$29*

San Juan, Puerto Rico (SJU)

May 22, 2025

3x/week

$59*

New service from Harry Reid International Airport (LAS):

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Tucson, Ariz. (TUS)

May 22, 2025

3x/week

$19*

New service from Los Angeles International Airport (LAX):

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INTRO FARE:

Chicago O’Hare (ORD)

May 22, 2025

Daily

$39*

Philadelphia (PHL)

May 22, 2025

Daily

$49*

New service from Miami International Airport (MIA):

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Austin, Texas (AUS)

May 22, 2025

3x/week

$39*

Washington Dulles (IAD)

May 22, 2025

Daily

$29*

Aguadilla, Puerto Rico (BQN)

May 24, 2025

Weekly

$59*

New service from Chicago O’Hare International Airport (ORD):

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INTRO FARE:

Los Angeles (LAX)

May 22, 2025

Daily

$39*

New service from Norfolk International Airport (ORF):

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Dallas-Fort Worth (DFW)

May 22, 2025

2x/week

$29*

New service from Philadelphia International Airport (PHL):

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SERVICE FREQUENCY:

INTRO FARE:

Austin, Texas (AUS)

May 22, 2025

3x/week

$49*

Los Angeles (LAX)

May 22, 2025

Daily

$49*

New service from Luis Muñoz Marín International Airport (SJU):

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SERVICE FREQUENCY:

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Washington Dulles (IAD)

May 22, 2025

3x/week

$59*

New service from Tucson International Airport (TUS):

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SERVICE FREQUENCY:

INTRO FARE:

Las Vegas (LAS)

May 22, 2025

3x/week

$19*

Frequency and times are subject to change. Please check www.flyfrontier.com for additional details.