BKNG vs DAL: How Booking Holdings and Delta Air Lines Compare (2026)

Same yardstick, side by side (as of July 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: DAL is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. BKNG and DAL share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined BKNG and DAL exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Booking Holdings (NASDAQ: BKNG), headquartered in Norwalk, Connecticut, is the world's leading provider of online travel and related services. The company operates five primary consumer-facing brands: Booking.com (accommodation and travel reservations), Priceline (discount travel), Agoda (Asia-Pacific focused travel), KAYAK (travel search and comparison), and OpenTable (restaurant reservations and management). It derives revenue primarily from commission-based and merchant-model travel reservation services, along with payment facilitation, advertising, travel insurance offerings, and restaurant management tools, serving consumers and travel partners across more than 220 countries and territories. The merchant model, in which Booking collects payment upfront and remits to the property, has been growing faster than the traditional agency model and represented the majority of revenue in recent quarters.

Full BKNG guide

Delta Air Lines is a global network carrier headquartered in Atlanta, operating a hub-and-spoke system across domestic and international routes with major connecting points in Atlanta, Minneapolis, Detroit, Salt Lake City, and New York. Beyond passenger flying, Delta earns meaningful revenue from its co-branded credit card partnership with American Express, its SkyMiles loyalty program, cargo, and Delta TechOps, one of the largest aircraft maintenance, repair, and overhaul providers in the world. The company has leaned into premium seating (first class, Delta One, and Comfort+) as higher-income travelers have driven a larger share of demand.

Full DAL guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• BKNG drivers: Durable marketplace network effects; AI and Connected Trip vision.
• DAL drivers: Premium and loyalty revenue mix; High-income traveler demand.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: The most acute downside scenario is a synchronized global recession or major geopolitical event that sharply curtails leisure and business travel, as Booking's revenue is nearly entirely travel-volume-dependent with significant European exposure. For DAL, airlines are deeply cyclical and sensitive to the broader economy, so a slowdown in consumer or corporate travel can quickly pressure fares and load factors.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick BKNG if you believe its drivers more; DAL if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the BKNG and DAL guides.

BKNG. Booking's trailing P/E has compressed meaningfully from its 10-year median of roughly 31x, sitting in the low-to-mid 20s as of mid-June 2026, which some analytical frameworks flag as modestly below historical fair value for a business growing revenue in the low double digits and expanding margins. The forward P/E of roughly 16x reflects analyst expectations for continued EPS growth in the mid-teens, driven by buybacks and the Transformation Program savings, and looks relatively undemanding for a company with a ~34% free cash flow margin. Investors should weigh this against the possibility that consensus estimates are optimistic if macro conditions weaken or competitive intensity from AI-native platforms accelerates.

DAL. Delta trades at a relatively low trailing earnings multiple, consistent with how the market typically values cyclical airlines. The March 2026 quarter showed record adjusted revenue of ~$14.2 billion even as total operating expense rose on higher fuel and refinery costs. Figures are approximate and drawn from company releases and market data as of mid-2026.

Headline figures (approximate, 2026-06-27): BKNG shows revenue (fy2025) ~$26.9 billion, revenue (ttm, as of q1 2026) ~$27.7 billion, adjusted ebitda (fy2025) ~$9.9 billion (~36.9% margin), net income (fy2025) ~$5.4 billion (~20.1% net margin); DAL shows revenue (fy2025) ~$63.4B, net income (fy2025) ~$3.8B, eps (fy2025) ~$5.82, market cap ~$61B.

BKNG and DAL are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined BKNG and DAL exposure against your real portfolio. It is not an investment adviser.