Sifting through countless of stocks in the Passenger Airlines industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in Frontier Group Holdings, Inc. or Allegiant Travel Company because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how Frontier Group Holdings, Inc. and Allegiant Travel Company compare based on key financial metrics to determine which better meets your investment needs.

About Frontier Group Holdings, Inc. and Allegiant Travel Company

Frontier Group Holdings, Inc., provides low-fare passenger airline services to leisure travelers in the United States and Latin America. The company sells its products through direct distribution channels, such as websites, mobile apps, and contact centers. As of December 31, 2025, it had a fleet of 176 Airbus single-aisle aircraft. Frontier Group Holdings, Inc. was founded in 1994 and is headquartered in Denver, Colorado.

Allegiant Travel Company, a leisure travel company, provides travel and leisure services and products to residents of under-served cities in the United States. The company offers scheduled air transportation on limited-frequency, nonstop flights between underserved cities and leisure destinations. As of February 1, 2026, it operated a fleet of 106 Airbus A320 series aircraft and 16 Boeing 737 series aircraft. The company also provides air-related services and products in conjunction with air transportation, including larger seats, baggage fees, advance seat assignments, travel protection products, change fees, priority boarding, customer convenience fee, food and beverage purchases on board, and other air-related services, as well as use of its call center for purchases. In addition, it offers third party travel products, such as hotel rooms, rental cars, and travel insurance from a third-party insurer; air transportation services; and charter services on a year-round and ad-hoc basis. Further, the company owns and operates a golf course. Allegiant Travel Company was founded in 1997 and is based in Las Vegas, Nevada.

Latest Passenger Airlines and Frontier Group Holdings, Inc., Allegiant Travel Company Stock News

As of September 1, 2026, Frontier Group Holdings, Inc. had a $1.3 billion market capitalization, compared to the Passenger Airlines median of $5.1 million. Frontier Group Holdings, Inc.’s stock is up 21% in 2026, down 4.5% in the previous five trading days and up 12.65% in the past year.

Currently, Frontier Group Holdings, Inc. does not have a price-earnings ratio. Frontier Group Holdings, Inc.’s trailing 12-month revenue is $4.2 billion with a -9.3% net profit margin. Year-over-year quarterly sales growth most recently was 37.7%. Analysts expect adjusted earnings to reach $-0.316 per share for the current fiscal year. Frontier Group Holdings, Inc. does not currently pay a dividend.

As of September 1, 2026, Allegiant Travel Company had a $2.0 billion market cap, putting it in the 53rd percentile of all stocks. Allegiant Travel Company’s stock is down 12.3% in 2026, down 9.5% in the previous five trading days and up 15.56% in the past year.

Currently, Allegiant Travel Company does not have a price-earnings ratio. Allegiant Travel Company’s trailing 12-month revenue is $2.9 billion with a 0.9% net profit margin. Year-over-year quarterly sales growth most recently was 36.9%. Analysts expect adjusted earnings to reach $6.476 per share for the current fiscal year. Allegiant Travel Company does not currently pay a dividend.

How We Compare Frontier Group Holdings, Inc. and Allegiant Travel Company Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at Frontier Group Holdings, Inc. and Allegiant Travel Company’s stock grades to see how they measure up against one another.

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Frontier Group Holdings, Inc. and Allegiant Travel Company Stock Value Grades

Company	Ticker	Value
Frontier Group Holdings, Inc.	ULCC	C
Allegiant Travel Company	ALGT	B

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection.

Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

AAII’s A+ Investor Value Grade derives from a stock’s value score. The Value Score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

Frontier Group Holdings, Inc. has a Value Score of 41, which is Average. Allegiant Travel Company has a Value Score of 68, which is Value.

The Value Stock Winner: Allegiant Travel Company

As you can clearly see from the Value Grade breakdown above, Allegiant Travel Company is considered to have better value than Frontier Group Holdings, Inc.. For investors who focus solely on a company’s valuation, Allegiant Travel Company could be a good stock to add to their portfolio. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Frontier Group Holdings, Inc. and Allegiant Travel Company Growth Grades

Company	Ticker	Growth
Frontier Group Holdings, Inc.	ULCC	F
Allegiant Travel Company	ALGT	B

The foundation of growth investing is seeking out stocks of companies exhibiting strong, consistent and prolonged growth that is expected to continue into the future.

In order to compute the growth score and assign it a letter grade, the percentile ranks for each of three components‐consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations‐must be determined. These three rank figures are added together, and the sum is ranked against the entire stock universe to arrive at a company’s Growth Score to create an equal distribution of grades.

The companies in the bottom 20% of the stock universe receive Growth Grades of F, considered to be very weak, while those in the top 20% receive A grades, which are considered very strong.

Frontier Group Holdings, Inc. has a Growth Score of 20, which is Very Weak. Allegiant Travel Company has a Growth Score of 69, which is Strong.

The Growth Grade Winner: Allegiant Travel Company

As you can clearly see from the Growth Grade breakdown above, Allegiant Travel Company has a more attractive growth grade than Frontier Group Holdings, Inc.. For investors who focus solely on how a company is growing relative to other companies in the same industry, Allegiant Travel Company could be a good stock to add to their portfolio. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Frontier Group Holdings, Inc. and Allegiant Travel Company’s Momentum Grades

Company	Ticker	Momentum
Frontier Group Holdings, Inc.	ULCC	C
Allegiant Travel Company	ALGT	C

Momentum grades help to uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

Frontier Group Holdings, Inc. has a Momentum Score of 41, which is Average. Allegiant Travel Company has a Momentum Score of 41, which is Average.

The Momentum Stock Winner: No Clear Winner

Neither Frontier Group Holdings, Inc. or Allegiant Travel Company has a strong enough Momentum Grade to be considered a “winner.” Investors considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolios. It’s important to look at a wide range of financial metrics in order to determine if Frontier Group Holdings, Inc. or Allegiant Travel Company is the better investment when it comes to momentum.

Other Frontier Group Holdings, Inc. and Allegiant Travel Company Grades

In addition to Value, Growth and Momentum, A+ Investor also provides grades for Estimate Revisions and Quality.

Earnings estimate revisions scores take into account the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, surprises beget further surprises‐or at least continued sales growth (the exact opposite is generally true, too).

AAII’s A+ Investor Quality Grade comes from the ranking of key metrics. Specifically, the quality grade is the percentile rank of the composite of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and F-Score.

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether Frontier Group Holdings, Inc. and Allegiant Travel Company pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Frontier Group Holdings, Inc. or Allegiant Travel Company Stock?

Overall, Frontier Group Holdings, Inc. stock has a Value Score of 41, Growth Score of 20 and Momentum Score of 41.

Allegiant Travel Company stock has a Value Score of 68, Growth Score of 69 and Momentum Score of 41.

Comparing Frontier Group Holdings, Inc. and Allegiant Travel Company’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.