IATA reports strong 2025 passenger demand, raises capacity constraints concerns

IATA has released its 2025 full-year and December 2025 passenger market performance, revealing record high demand.

Highlights of the report show that:

• Total full-year demand in 2025 (measured in revenue passenger kilometers or RPKs) rose 5.3% compared to 2024. Total capacity, measured in available seat kilometers (ASK), was up 5.2% in 2025. The overall passenger load factor (PLF) reached 83.6%, up 0.1 ppt and a record for full-year traffic.
• International full-year demand in 2025 increased 7.1% compared to 2024, and capacity rose 6.8%. The full year international load factor was 83.5%, a rise of 0.2 ppt on 2024. This was also a record high for international PLF.
• Domestic full-year demand for 2025 rose 2.4% compared to the prior year, while capacity expanded by 2.5%. The load factor for the full year averaged 83.7%, down -0.1 ppt compared to 2024.
• December 2025 was a strong finish to the year with overall demand rising 5.6% year-on-year, capacity growing by 5.9%, and a load factor of 83.7%.

Commenting on the results, Willie Walsh, IATA’s Director General, said: “2025 saw demand for air travel grow by 5.3% with international demand growing by 7.1% and domestic by 2.4%. This returns industry growth to align with historical growth patterns after the robust post-COVID rebound. The strong and continuous increase in demand puts into sharp focus two key challenges — decarbonization and supply chain.”

Walsh continued: “The first, decarbonization, will protect future long-term growth. Governments whose economies grow because of aviation and whose citizens thirst for connectivity need to provide the supportive fiscal policy framework to rapidly accelerate progress—particularly for the energy sector to grow Sustainable Aviation Fuel (SAF) production.”

And he added that: “The second, supply chain challenges, was the biggest headache for airlines in 2025. People clearly wanted to travel more, but airlines were continually disappointed with unreliable delivery schedules for new aircraft and engines, maintenance capacity constraints, and resultant cost increases that are estimated to exceed $11 billion.”

IATA’s Director General pointed out that: “Airlines scrambled to accommodate the demand by keeping aircraft in service longer and filling more seats on every flight. With load factors just shy of 84%, it’s clear that these measures were an effective band aid, but we need a real solution. It’s vital that 2025 proves to be the nadir of the supply chain crisis, and 2026 marks a rebound. Every new aircraft means a quieter, cleaner fleet, with more capacity and flight options than at any previous point in history, which is what airlines and their customers want to see.”

Go to www.iata.org for more.