Jet-fuel prices eased in June, but after the ceasefire between the U.S. and Iran fell apart, they're on the rise again, and coming back into focus as a worry for airlines.

United Airlines said it expects $6 billion in added fuel expense this year compared with what it expected at the start of 2026. Carriers have boosted fares and cut back on flying to cope with pricier fuel, and United said it expects to be able to recover 80% to 90% of the increase.

Still, its shares slipped 2% Wednesday after market close, recovering some from when they were down more than 4%. United said it expects adjusted earnings of $2.50 to $3.50 per share in the third quarter, accounting for fuel's run-up in July, compared with the $3.53 analysts were anticipating.

The airline said travel appetite remains strong, with travelers absorbing higher ticket prices. But investors have been waiting to see how much airlines will cut schedules after the busy summer season, fearing that the supply of seats will outstrip demand. United said Wednesday that it's "prepared to further moderate near-term capacity with elevated fuel."