Ed Bastian
Chief Executive Officer at Delta Air Lines
Thanks, Julie. Good morning, everyone. We appreciate you joining us today. 2023 is off to a strong start for Delta with record advanced summer bookings, the launch of free Wi-Fi, and continued recognition as the industry leader, not only by our customers, but by Fortune, Cirium, and The Wall Street Journal. During the March quarter, we generated earnings of $0.25 per share on revenue that was 45% above last year and a record for the March quarter. Delta's operating income was $550 million, more than $1 billion improvement year-over-year, bringing our trailing 12-month operating profits to nearly $5 billion. We generated close to $2 billion of free cash flow in the quarter, reflecting robust demand for summer travel. Better-than-expected cash generation enabled us to accelerate debt reduction, moving us closer to our goal of returning to investment-grade metrics. All-in, a very solid performance by our team in the seasonally weakest quarter of the year.
Delivering safe and reliable service remains our top priority and no airline does this better than Delta. I'd like to thank our teams for all they do for our customers each and every day. The dedication, professionalism, and hard work of Delta's 90,000 people worldwide are the foundation of our Company. Sharing our financial success with our people has always been an important part of our DNA. Our industry-leading profitability in 2022 enabled us to payout more than $550 million in profit-sharing in February, more profit-sharing than the rest of the industry combined. And we're looking-forward to larger payouts next year as we expect to deliver significant earnings improvement.
We also rewarded eligible employees with a 5% pay increase on the 1st of April, and received strong ratification from our pilots on the new four-year contract, providing well-deserved increases for all of our people. The performance of our people and the momentum of our brand was recognized when Delta was ranked number 12 overall on Fortune's World's Most Admired Company list, a remarkable statement about the resiliency of our company, given the pandemic challenges of the last few years.
Our brand is built on a foundation of service and operational reliability, and we are committed to delivering the level of service our customers expect, as we ramp operations for the coming summer season. The operating teams have done a great job getting ready, and we are planning to grow June quarter capacity 17% over last year to meet strong customer demand. This growth is, though, a couple of points below our initial plan to fully restore capacity this summer as we focus on delivering the best operation in the industry and remain prudent in our capacity restoration.
As I mentioned at last December's Capital Markets Day, aviation infrastructure is still fragile, but collectively, we're working to ensure resiliency, as we manage constraints around the supply chain, aircraft delivery delays, and training needs. I want to commend the FAA for collaborating with the industry to help improve the customer experience in New York by temporarily relaxing minimum flight requirements, given ATC staffing challenges.
Turning to our outlook. With solid first quarter performance and visibility into the strength of summer travel demand, we are confident in our full year guidance for revenue growth of 15% to 20% year-over-year, earnings of $5 to $6 per share, and free cash flow of over $2 billion, the three main guidepost we shared with you last December. For the June quarter, we expect to deliver the highest quarterly revenue in our history, a 15% operating margin and EPS of $2 to $2.25 a share. Our forecast operating profit of $2 billion matches Q2 of 2019, demonstrating that the earnings power of this franchise is intact. Glen and Dan will provide more details on the components of our outlook.
As we look to our upcoming Investor Day in June, we will outline the long-term opportunities that we've cultivated through years of investments, building on our industry leadership position and further enhancing our long-term financial profile. One focus area will be innovation and digital technology where we continue to grow our leadership position. Increasingly, it's one of the reasons customers are choosing Delta with significant growth in direct bookings and higher engagement through our digital channels.
We have reached an important step in our digital transformation with the rollout of fast, free high-quality Wi-Fi, which has been a tremendous success. We began this effort several years before the pandemic and it has required significant investment and resources to achieve. In addition, this month, we began rolling out Delta Sync for SkyMiles members, which will unlock a more personalized customer experience in the air and on the ground. When customers join the SkyMiles loyalty program, it enables us to deepen our trusted relationship and create stronger brand preference.
As we've rolled out fast, free Wi-Fi as well as other benefits, new SkyMiles memberships have accelerated at a record pace. Growth has been particularly strong among younger customers with a record three million total enrollments during the quarter. Thanks to the size and growth of our loyalty program, the value of our Amex co-brand card portfolio continues to reach new highs and leading brands are joining our consumer ecosystem, creating further opportunities. I look forward to discussing this and more about how Delta is transforming the customer experience on June 27th in Atlanta. Hope you all can join us that day.
In closing, the industry backdrop remains constructive and we are well-positioned to grow earnings and cash flow in 2023, '24, and beyond. Delta continues to set itself apart. We are on our way to transcend the industry with our leading consumer brand and deliver financial outcomes that create significant long-term value for our owners.
Thank you, again. And with that, let me hand it over to Glen for more details on our commercial performance.