United Airlines executives warned of economic uncertainty during their earnings call with investors on Wednesday.

The airline said it is leaning into its business catered toward wealthier consumers, including premium seating and travel to international destinations, as those spenders appear relatively unfazed by economic storm clouds.

The stronger-than-expected results were led by growth at the front of the plane and on long-haul flights. Premium cabin revenue rose 9.2% year-over-year, United reported, and international passenger revenue per available seat mile (PRASM) was up 5.2%, including an 8.5% increase in the Pacific.