FLYY vs ULCC

For growth investors, Frontier Group Holdings, Inc.

(ULCC) is the stronger pick with -1. 4% revenue growth year-over-year, versus -8. 4% for Spirit Aviation Holdings, Inc. (FLYY). Analysts rate Frontier Group Holdings, Inc. (ULCC) a "Hold" — based on 13 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

Over the past 5 years, Frontier Group Holdings, Inc.

(ULCC) delivered a total return of -76. 1%, compared to -98. 1% for Spirit Aviation Holdings, Inc. (FLYY). Over 10 years, the gap is even starker: ULCC returned -74. 6% versus FLYY's -98. 1%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Spirit Aviation Holdings, Inc.

(FLYY) is the lower-risk stock at 1. 94β versus Frontier Group Holdings, Inc. 's 2. 84β — meaning ULCC is approximately 47% more volatile than FLYY relative to the S&P 500.

By revenue growth (latest reported year), Frontier Group Holdings, Inc.

(ULCC) is pulling ahead at -1. 4% versus -8. 4% for Spirit Aviation Holdings, Inc. (FLYY). On earnings-per-share growth, the picture is similar: Spirit Aviation Holdings, Inc. grew EPS -174. 6% year-over-year, compared to -257. 9% for Frontier Group Holdings, Inc.. Over a 3-year CAGR, FLYY leads at 15. 0% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Frontier Group Holdings, Inc.

(ULCC) is the more profitable company, earning -3. 7% net margin versus -25. 0% for Spirit Aviation Holdings, Inc. — meaning it keeps -3. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ULCC leads at -4. 0% versus -22. 5% for FLYY. At the gross margin level — before operating expenses — ULCC leads at 35. 5%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Spirit Aviation Holdings, Inc.

(FLYY) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding. Frontier Group Holdings, Inc. (ULCC) carries a higher beta of 2. 84 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (FLYY: -98. 1%, ULCC: -74. 6%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Industrials sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.