US Airline Profits Fell to $6B as Costs Ate Into the Boom

US scheduled passenger airlines made $6.0 billion in after-tax profit in 2025, according to the Bureau of Transportation Statistics.

That was down from $6.7 billion in 2024. Pre-tax operating profit also fell, from $13.5 billion to $11.4 billion.

The result shows that US airlines were still making money, but with less financial room than before. Operating revenue reached $252.6 billion, while expenses reached $241.2 billion. The industry’s net margin slipped to 2.4 percent, meaning airlines kept only a small part of their revenue as final profit.

Domestic flying was the main weak spot

Domestic operations dragged down the overall result. US airlines made $3.2 billion in domestic after-tax profit in 2025, down from $4.6 billion in 2024. Domestic pre-tax operating profit also fell, from $9.5 billion to $7.2 billion.

Domestic flying is the core of the US market. It supports leisure trips, business travel, events, family visits, and connections to international flights. The domestic net margin fell to 1.7 percent, down from 2.5 percent in 2024, indicating that airlines earned less from this major part of their network.

International routes gave airlines more support

International flying performed better. US airlines made $2.9 billion in international after-tax profit in 2025, up from $2.1 billion in 2024. International operating profit reached $4.1 billion, slightly above the $4.0 billion reported a year earlier.

The international net margin improved to 4.4 percent, compared with 3.3 percent in 2024. This helps explain why large US airlines continue to focus on long-haul routes, global partnerships, and premium international demand.

Cost pressure remains the biggest risk

Fuel accounted for a smaller share of airline expenses in 2025, while labor accounted for a larger share. Fuel accounted for 16.8 percent of expenses, down from 18.8 percent in 2024. Labor rose to 37.8 percent, up from 36.4 percent.

That cost mix makes airline profitability harder to protect. Fuel prices can fall quickly, helping airlines, but labor costs are less flexible. Airlines still need enough staff to operate safely, maintain aircraft, and serve passengers. If fares do not rise enough to cover these costs, margins can narrow even when demand remains solid.

Recent fuel data makes 2026 less predictable

The latest BTS fuel update shows another challenge for 2026. In March 2026, US airlines paid $3.13 per gallon for fuel, up 30.9 percent from February and 29.9 percent from March 2025. Total fuel spending reached $5.06 billion, up 56.4 percent from February.

Recently, US airfare data showed that ticket prices are already moving higher before the peak summer season, with fares rising 20.7 percent year over year in April. That adds more pressure to the 2026 outlook. If fuel and labor costs stay high, airlines may have to protect margins through higher fares, tighter capacity, or a stronger focus on profitable routes.

Photo by Juan Domenech on Unsplash