Delta Air Lines (DAL) › Analysis

Delta Air Lines (DAL) stock analysis, September 17, 2025: DAL bounces 2.3% to $58.73 as regulators force an Aeromexico breakup by 2026

Published September 17, 2025 · DAL chart, levels and live analysis

Key Updates

Delta Air Lines shares have risen 2.31% to $58.73 since the last note, after U.S. regulators ordered the forced termination of the partnership with Aeromexico by 2026. Despite the negative news surrounding the joint venture that controls almost 60% of key U.S.–Mexico routes, the stock is showing short-term stabilization after a recent 4.32% drop over five days.

Current Trend

DAL is consolidating after a strong 25.26% gain over the past six months. Year-to-date performance remains negative at –2.92%, reflecting volatility in the airline sector. A short-term pullback of 3.85% over the last month signals seller pressure, but today’s bounce could hint at a local bottom around $57-$58.

Investment Thesis

The thesis for Delta rests on recovering passenger demand, disciplined cost management, and solid positions on core routes. The stock appears undervalued with a low P/E multiple and earnings growth potential above the market average, supporting its appeal to long-term investors.

Thesis Status

The investment case remains under pressure from regulatory constraints. The forced breakup of the Aeromexico partnership by 2026 creates operational risk and could hurt Latin America profitability. Nonetheless, DAL’s inclusion on TD Cowen’s list of promising undervalued stocks sustains its long-term attractiveness.

Key Drivers

Negative: U.S. Transportation Secretary Sean Duffy's order to dissolve the Delta-Aeromexico partnership over fair-competition concerns in Mexico. Positive: DAL's inclusion in TD Cowen's list of 10 undervalued stocks with above-average earnings growth.

Technical Picture

At $58.73, the price sits above the recent local low near $57, suggesting short-term support. The 2.31% rebound after a series of declines shows buyers trying to stabilize the stock. Resistance lies around $61-$62; a breakout could open a path to test the six-month highs.

Bull Case

  • Inclusion in TD Cowen's list of undervalued stocks with earnings growth outpacing the S&P 500 analysts' recommendation
  • Low P/E relative to 47 S&P 500 peers, indicating undervaluation per a MarketWatch study
  • Strong six-month gain of 25.26%, reflecting a sector recovery
  • Technical stabilization around $57-$58 could lay the groundwork for further upside
  • Potential to offset partnership losses by expanding other international routes

Bear Case

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