This morning, we issued an earnings press release, which is available on our website at investors.sabre.com. More information on these risks and uncertainties is contained in our earnings release issued this morning and our SEC filings, including our Form 10-Q for the quarter ended September 30, 2025. References during today's call to adjusted EBITDA, adjusted EBITDA margin, normalized adjusted EBITDA, and normalized adjusted EBITDA margin have been adjusted to exclude certain items. The most directly comparable GAAP measures and reconciliations for non-GAAP measures are available in the earnings release and other documents posted on our website at investors.sabre.com.
We have removed the impact of the $227 million payment in kind interest that was recorded in conjunction with the refinancing activity in the second quarter of 2025 from pro forma free cash flow. Earlier today, we reported third quarter results and provided an updated outlook for the remainder of the year. We delivered positive air distribution bookings growth in the third quarter, driven primarily by strong performance in September. Our outlook for the remainder of the year, we remain confident in our ability to continue to drive air distribution bookings growth going forward.
We have strengthened our balance sheet by growing adjusted EBITDA, generating free cash flow, extending debt maturities, and proactively using cash to reduce debt. This quarter, we announced two industry firsts: agentic APIs for travel, enabling a new era of AI-driven retailing, and continuous revenue optimizer, an offering within our modular AI-native Sabre Mosaic platform. Further, our payments business continues to see strong customer demand and is growing at a very healthy rate. New agency wins and renewals, first-mover product launches, and continued innovation increase our confidence that we are well-positioned competitively.