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Delta Air Lines vs Southwest Airlines Co.: Which Stock Looks Stronger in 2026?

Delta Air Lines holds the cleaner structural position, with profitability as the main driver and valuation adding further support. Southwest Airlines Co does not offset that deficit through any equally strong structural edge elsewhere. On the market side, Delta Air Lines is in better shape — its trend is intact while Southwest Airlines Co's trend has broken down. That puts structure and market broadly in agreement — Delta Air Lines's lead looks more confirmed than conflicted.

The comparison is based on similar long-term financial trajectories, not sector labels. Both peer scores are relative to the S&P 500 universe, making them directly comparable.

Updated 2026-05-17

This is not just a one-metric split: both profitability and valuation materially support the lead. The overall score gap is 20 points in favour of Delta Air Lines, Inc..

INDUSTRY COMPARISON

Both operate in: Airlines

This comparison is based on industry proximity, not on functional trajectory similarity. DAL and LUV share the same industry classification.

For a similarity-based comparison, see how Delta Air Lines and Southwest Airlines Co each position within their functional peer groups in AssetNext.

Peer-Relative Score
DAL
Delta Air Lines, Inc.
64
Peer-Score
Signal qualitylow
Peer basis: S&P 500
vs
LUV
Southwest Airlines Co.
44
Peer-Score
Signal qualitylow
Peer basis: S&P 500

Scores reflect position relative to comparable companies with similar long-term financial trajectories.

The largest gaps do not all point in the same direction.

Dimension spread: DAL vs LUV Profitability 55 30 Stability 42 28 Valuation 83 63 Growth 69 51 DAL LUV
Gap Ranking
#1 Profitability +25
#2 Valuation +20
#3 Growth +18
#4 Stability +14
Price Setup

Left means cheaper relative valuation. Higher means stronger structure.

Price setup map for DAL and LUV Stronger + cheaper Stronger + richer Weaker + cheaper Weaker + richer DALLUV Relative valuation Structural strength

Delta Air Lines, Inc. looks stronger both structurally and on relative valuation.

Valuation position uses peer-relative PE percentile (idx_pct_pe) where available.

Entry today — historical context

Where DAL and LUV each sit in their own 5-year price and valuation history.

BASED ON 5-YEAR HISTORY DAL Elevated · near norm 0th 50th 100th 25 pct gap LUV Elevated · above norm 0th 50th 100th 98th 73rd
Today LUV sits in the upper-middle of its own 5-year history (73rd percentile), while DAL sits higher in its own history (98th). Within each stock's own 5-year context, LUV is at a historically more favourable entry position than DAL. This reflects entry timing, not which company is structurally stronger — peer-relative analysis is a separate question addressed above.

Describes historical entry positioning only. Descriptive — not investment advice.

Relative Position vs Comparable Companies
Profitability
Delta Air Lines, Inc. sits in the stronger part of the group on profitability, while Southwest Airlines Co. is closer to mid-pack.
Valuation
Both rank well on valuation, but Delta Air Lines, Inc. still holds a clear edge.
Profitability — Dominant Gap
DAL
55
LUV
30
Gap+25in favour of DAL

Capital efficiency adds support, with a 10.1-point ROIC advantage.

What keeps the gap from being one-sided

Southwest Airlines Co. still looks less cycle-sensitive — that keeps the result from looking completely one-sided.

What this means for the comparison

Profitability is the clearest driver, and valuation also supports Delta Air Lines, Inc.'s broader structural position.

Explore full peer positioning in AssetNext

Break down the DAL vs LUV comparison across all dimensions with the full interactive tool.

Explore full breakdown →
Similar profitability-and-valuation comparisons

Explore how DAL and LUV each compare against other companies in their peer groups.

Rule-based, descriptive analysis only. Derived from peer percentile dimensions. Not investment advice. Peer groups are determined algorithmically based on structural similarity — not by sector classification alone.

How AssetNext Peer Scores Work

AssetNext scores reflect each company's structural position within its functional peer group — not a ranking against all stocks simultaneously. Peers are identified by similarity across eight financial dimensions, including revenue growth trajectory, margin structure, capital intensity, and earnings stability. A score of 75 means the company ranks in the top quartile within its own peer group, not the entire market.

Four dimension scores drive the overall peer score: Growth (revenue trajectory and expansion dynamics), Quality (margin structure and capital efficiency), Valuation (peer-relative pricing on standard multiples), and Stability (earnings consistency and financial predictability). Each dimension is scored 0–100 relative to the peer group, then combined into an overall peer score using equal weighting.

Because scores are peer-relative, the same company can have slightly different scores in different index universes. On comparison pages, both companies are shown within their shared peer universe wherever possible — so the scores are directly comparable. The peer basis is stated on each score card.

Scores are recalculated periodically as underlying financial data is updated. All analysis is descriptive and rule-based — AssetNext describes structural realities and never issues buy, sell or hold recommendations.