Major U.S. airlines are confronting a pivotal moment as a rapid escalation in energy costs threatens to derail full-year profit plans. In a research note, UBS flagged that several carriers will likely issue mid-quarter updates this week and that analysts broadly expect a suspension of fiscal year 2026 guidance across the sector.
At the start of the reporting period, the industry benefited from strong demand and rising Revenue Per Available Seat Mile (RASM). Those tailwinds, however, have been challenged by what UBS describes as "significant uncertainty" about fuel prices for the remainder of the year, prompting a shift toward defensive planning among management teams.
A cushioned near-term impact
UBS highlights that the immediate earnings effect for the first quarter may be muted relative to the headline fuel surge because airlines typically carry about two weeks of fuel on the books. That inventory practice means the March spike in fuel prices is likely to influence roughly 15 days of the current reporting period. The note states, "This should cushion the drag to Q1 EPS," and indicates that most carriers are still expected to land near the midpoint of their prior guidance ranges for the quarter.
Performance is expected to diverge across carriers. United Airlines Holdings Inc (NASDAQ:UAL) is viewed as having potential upside, in part because the absence of a new flight attendant contract could, together with elevated RASM, help offset fuel-related headwinds. By contrast, American Airlines Group (BMV:AAL) is identified as more sensitive to fuel-cost moves and could see its earnings pushed toward the lower bound of its guidance. Delta Air Lines Inc (NYSE:DAL) and Alaska Air Group Inc (NYSE:ALK) are forecast to remain relatively close to their original targets.
Fare pass-through will be the sector's test
The central uncertainty for 2026 is how effectively airlines can transfer higher operational costs to consumers. Market participants are watching management commentary on fare increases closely, as the post-pandemic surge in travel demand evolves into an environment where price sensitivity is rising. UBS notes that demand stayed robust through the quarter, but it emphasizes that retaining "pricing power" while oil trades at triple-digit levels is the principal risk to the sector's recovery.
Institutional investors are asking whether the recent pullback in airline equities signals a cyclical trough for the industry. UBS points out that historically, airline shares have had difficulty recovering during episodes of prolonged energy inflation unless carriers implement aggressive capacity discipline.
With management teams stepping back from long-term forecasting amid the prevailing "macro fog," UBS concludes that the sector's near-term trajectory will likely be closely linked to day-to-day movements in the Brent crude benchmark.