Ed Bastian
Chief Executive Officer at Delta Air Lines
Well, thank you Julie, and good morning, everyone. We appreciate you joining us today. Earlier this morning we reported our March quarter results, posting pretax earnings of $380 million, or $0.45 per share, a $0.20 improvement over last year on revenue that was 6% higher, and a new record for first quarter. Free cash flow was $1.4 billion, and we delivered a return on invested capital of nearly 14%, putting Delta's returns in the top half of the S&P500. We are delivering industry-leading operational reliability, and have widened the gap to our competition.
Last summer we made forward leaning investments in the operation, and since then our teams have delivered operational performance that is among the best in our history. With mainline cancellations down 85%, setting new records for completion factor in both the fourth quarter and the first quarter. I'd like to sincerely thank Delta's 100,000 people for your dedication, professionalism and hard work in delivering these outstanding results.
In February, we recognized the efforts of our people with $1.4 billion in profit sharing, more than the rest of the industry combined, and continuing Delta's longstanding philosophy to reward industry leading performance with industry leading compensation. Reflecting our people first culture, Forbes ranked Delta the fifth best large employer in America, and Delta was recently named the 2024 Global Airline of the Year by Air Transport World for our outstanding commitment to safety, operational performance and premium customer service.
While airline travel and transportation is what we do, it's the experiences on Delta that set us apart as a leading consumer brand and why Delta was recognized as number 11 on Fortune's list of the world's most admired companies. Exciting customer facing enhancements are on the near horizon, including the opening of new Delta One lounges in JFK, Los Angeles and Boston, the continued introduction of modern and fuel-efficient aircraft, new premium cabin service offerings, upgrades to the Fly Delta app and the international expansion of fast, free WiFi across our fleet. The rollout of WiFi and Delta Sync continues to be a tremendous success. Since launching last year, customers have logged more than 45 million free streaming quality sessions on board, and millions have joined the Sky Miles program through this channel. Recognizing our investment to ensure the future of travel is connected, we took the number two spot in the travel category, a fast company's list of the most innovative companies, the only airline to be recognized in the ranking.
Loyalty to our brand has never been stronger. We continue to set new records with our remuneration from American Express, our most important commercial relationship, and are well on our way to our long-term target of $10 billion. On February 1, we announced enhanced and refreshed benefits for our Delta SkyMiles American Express cards providing more direct value, and the customer response has been very positive.
Turning to our outlook with strong first quarter performance and visibility into the strength of summer travel demand, we remain confident in our full year guidance for earnings of $6 to $7 per share, free cash flow of $3 billion to $4 billion, and leverage of two and a half times, the three main guideposts that we shared with you in January. For the June quarter, we expect to deliver the highest quarterly revenue in our history of mid-teens operating margin and earnings of $2.20 to $2.50 per share. Our forecast for pretax profit of approximately $2 billion is on par with 2019, and just shy of last year due to higher fuel prices. Demand continues to be strong, and we see a record spring and summer travel season with our 11 highest sales days in our history, all occurring this calendar year. Spending on services recently surpassed goods for the first time in five years, and there is further runway to return to their long-term trends.
Delta's core consumers are in a healthy position and travel remains a top purchase priority. Generational shifts and evolving consumer preferences are driving secular growth in premium experiences, and business travel demand has taken another meaningful step forward this year, with growth accelerating into the mid-teens over last year. When you put this level of demand strength together with the industry's increased focus on improving financial returns, this may be the most constructive backdrop that I've seen in my airline career.
Our industry leading performance continues to demonstrate the strength of Delta's differentiated brand and returns focused strategy. And with our disciplined approach to capital investment and focus on free cash flow, Delta is exceptionally well positioned to further strengthen our balance sheet and deliver significant shareholder value.
In closing, the momentum in the business continues to build. We are focused on delivering excellent reliability, elevating the customer experience and improving efficiency across the company to support growth in our earnings and cash flow. I am excited for Delta's opportunities ahead, and we'll talk more about that and provide new long-term financial targets at our Investor Day, which we are scheduling for November 19th and 20th in New York City. Please put that on your calendar.
Thank you again, and with that, let me hand it over to Glen for more details on our commercial performance.