WallStSmart

Delta Air Lines Inc (DAL)vsSouthwest Airlines Company (LUV)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Delta Air Lines Inc generates 126% more annual revenue ($63.36B vs $28.06B). DAL leads profitability with a 7.9% profit margin vs 1.6%. LUV appears more attractively valued with a PEG of 0.20. DAL earns a higher WallStSmart Score of 67/100 (B-).

DAL

Strong Buy

67

out of 100

Grade: B-

Growth: 6.7Profit: 6.5Value: 7.3Quality: 4.5
Piotroski: 4/9

LUV

Buy

63

out of 100

Grade: C+

Growth: 7.3Profit: 4.5Value: 4.7Quality: 6.5
Piotroski: 6/9Altman Z: 1.84
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

DALUndervalued (+80.1%)

Margin of Safety

+80.1%

Fair Value

$358.49

Current Price

$63.44

$295.05 discount

UndervaluedFair: $358.49Overvalued
LUVSignificantly Overvalued (-39.1%)

Margin of Safety

-39.1%

Fair Value

$36.97

Current Price

$39.41

$2.44 premium

UndervaluedFair: $36.97Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

DAL5 strengths · Avg: 8.6/10
P/E RatioValuation
7.9x10/10

Attractively priced relative to earnings

Return on EquityProfitability
27.7%9/10

Every $100 of equity generates 28 in profit

Price/BookValuation
2.0x8/10

Reasonable price relative to book value

EPS GrowthGrowth
44.6%8/10

Earnings expanding 44.6% YoY

Free Cash FlowQuality
$1.35B8/10

Generating 1.4B in free cash flow

LUV3 strengths · Avg: 9.3/10
PEG RatioValuation
0.2010/10

Growing faster than its price suggests

EPS GrowthGrowth
50.8%10/10

Earnings expanding 50.8% YoY

Price/BookValuation
2.5x8/10

Reasonable price relative to book value

Areas to Watch

DAL3 concerns · Avg: 3.0/10
Revenue GrowthGrowth
2.9%4/10

2.9% revenue growth

Profit MarginProfitability
7.9%3/10

7.9% margin — thin

PEG RatioValuation
39.292/10

Expensive relative to growth rate

LUV4 concerns · Avg: 3.0/10
Altman Z-ScoreHealth
1.844/10

Grey zone — moderate risk

Return on EquityProfitability
4.8%3/10

ROE of 4.8% — below average capital efficiency

Profit MarginProfitability
1.6%3/10

1.6% margin — thin

P/E RatioValuation
50.9x2/10

Premium valuation, high expectations priced in

Comparative Analysis Report

WallStSmart Research

Bull Case : DAL

The strongest argument for DAL centers on P/E Ratio, Return on Equity, Price/Book.

Bull Case : LUV

The strongest argument for LUV centers on PEG Ratio, EPS Growth, Price/Book. PEG of 0.20 suggests the stock is reasonably priced for its growth.

Bear Case : DAL

The primary concerns for DAL are Revenue Growth, Profit Margin, PEG Ratio.

Bear Case : LUV

The primary concerns for LUV are Altman Z-Score, Return on Equity, Profit Margin. A P/E of 50.9x leaves little room for execution misses. Thin 1.6% margins leave little buffer for downturns.

Key Dynamics to Monitor

DAL carries more volatility with a beta of 1.35 — expect wider price swings.

LUV is growing revenue faster at 7.4% — sustainability is the question.

DAL generates stronger free cash flow (1.4B), providing more financial flexibility.

Monitor AIRLINES industry trends, competitive dynamics, and regulatory changes.

Bottom Line

DAL scores higher overall (67/100 vs 63/100). Both earn "Strong Buy" and "Buy" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

Delta Air Lines Inc

INDUSTRIALS · AIRLINES · USA

Delta Air Lines, Inc., typically referred to as Delta, is one of the major airlines of the United States and a legacy carrier. It is headquartered in Atlanta, Georgia.

Southwest Airlines Company

INDUSTRIALS · AIRLINES · USA

Southwest Airlines Co., typically referred to as Southwest, is one of the major airlines of the United States and the world's largest low-cost carrier airline. It is headquartered in Dallas, Texas.

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