Airlines Face a Fuel Squeeze as $100 Oil Reverses the Trade

The move above $100 Brent works in the opposite direction for airlines. The U.S. Global Jets ETF slipped in Wednesday's premarket session after losing more than 13% over the previous month. Delta Air Lines fell 13.9% across that stretch, while United Airlines Holdings declined 16.8%.

Jet fuel represents roughly 25% to 30% of operating expenses for many carriers, according to the International Air Transport Association, making it one of the industry's highest and most volatile costs. Carriers can eventually raise fares, but the timing is unfavorable: fuel costs rise immediately, while higher ticket prices either weaken demand or take months to filter through. Hedging coverage varies widely between operators and offers only temporary protection.

The pressure is showing up in analyst estimates. BNP Paribas cut its Delta price target to $105 from $115 on Wednesday while keeping an Outperform rating; the FactSet mean target stands at $107.15. Delta shares closed Wednesday at $159.09, down 1.25% on the day. Separately, Delta and Hyatt announced a loyalty collaboration that will let eligible elite members earn both World of Hyatt points and SkyMiles on qualifying travel when it launches in the coming months.