Press Releases
4 mins read 
Istanbul, IATA WPS – 05 November 2025
Part of Accelya’s open and modular FLX ONE platform, FLX ONE Order Accounting gives Wizz Air greater precision and visibility across every transaction – enabling one of Europe’s fastest-growing ultra-low-cost carriers to simplify its accounting and support its retail growth.
Accelya, a global leader in airline financial and retailing technology, today announced that Wizz Air has selected FLX ONE Order Accounting to modernize its finance operations and support its continued growth. The new solution will help Wizz Air manage accounting complexity as it expands and introduces new products and services.
As Wizz Air grows and will look to double its fleet and the number of its employees in the next decade, its commercial operations and transaction volumes are increasing rapidly. FLX ONE Order Accounting provides real-time visibility and automation across the airline’s accounting processes. This allows Wizz Air to recognize revenue accurately, reduce manual work, and maintain full financial control as it scales.
“To further accelerate our growth, we need finance systems that move as fast as our business,” said Michael Berlouis, Wizz Air’s Financial Operations Officer. “Accelya’s FLX ONE Order Accounting gives us the confidence and visibility to account for new products and revenue streams accurately, stay in control as we grow, and keep our focus on delivering value for our customers.”
Part of Accelya’s open, cloud-based FLX ONE platform, the solution integrates easily with existing systems, enabling finance and commercial teams to operate from the same data foundation. It captures and reconciles every transaction automatically, providing finance teams with the transparency and accuracy needed to support Wizz Air’s agile, retail-driven model.
By moving towards an order-based approach, Wizz Air is building the financial capabilities needed for IATA’s Offers and Orders vision – with automated reconciliation, faster settlement, and clear, real-time cash visibility.
Key benefits for Wizz Air include:
- Faster cash flow – automation speeds up reconciliation and settlement across all markets.
- Easier to scale – finance systems grow with the business, reducing manual work and complexity.
- Accurate and consistent – standard rules ensure every transaction is recorded the same way.
- Ready for new products – easily supports new offers, bundles, and retailing models as they launch.
“Wizz Air continues to grow at pace and lead in modern retailing. Their approach shows how finance can be a driver of innovation, not just control – simplifying reconciliation, removing barriers, and helping teams make faster, more confident decisions that support retail growth,” said Sam Gilliland, Chief Executive Officer, Accelya.
This announcement reinforces Accelya’s role as a trusted partner to leading airlines in modernizing financial operations and supporting the industry’s transition to Offers and Orders.
About Accelya
Accelya is a global leader in airline software, powering over 200 airlines with an open, modular platform that enables them to drive growth, enhance customer experiences, and take control of their retailing. Our FLX ONE platform empowers airlines to transform across Offer, Order, Settlement, and Delivery (OOSD), in line with IATA’s standards for modern retailing.
With a cloud-native infrastructure powered by AWS, Accelya processes more than 30 billion unique offers daily, settles over $100 billion annually, and delivers more than 50% of global NDC volumes. Our solutions span the entire retail lifecycle, both above and below the wing, giving airlines the flexibility, performance, scalability, and reliability they need.
Backed by 40 years of industry expertise, long-term support from Vista Equity Partners, and 2,500 employees across 10 global offices, Accelya has the scale and proven track record to meet the evolving needs of the airline industry.
For more information, visit the Accelya Website.
Media Relations: [email protected]
About Wizz Air
Wizz Air operates a fleet of 248 Airbus A320 and A321 aircraft. A team of dedicated aviation professionals delivers superior service and very low fares, making Wizz Air the preferred choice of 62.8 million passengers in 2024. Wizz Air is listed on the London Stock Exchange under the ticker WIZZ. The company was named one of the world’s top ten safest airlines by airlineratings.com, the world’s only safety and product rating agency, and named Airline of the Year by Air Transport Awards in 2019 and in 2023. Wizz Air has also been recognized as the “Most Sustainable Low-Cost Airline” within the World Finance Sustainability Awards in 2021-2025 and “EMEA’s most Environmental Sustainability Airline Group of the Year” by CAPA – Centre for Aviation Awards for Excellence 2024. In 2025, Wizz Air topped the major airlines’ emissions ranking, as presented by Cirium, an aviation analytics company, thanks to its work reducing emissions intensity.
For more information: [email protected]
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