Elon Musk Mocks Delta's Wi-Fi After DAL CEO's Snub: ‘Best Way To Sandbox An AI’ Is To Put It on a Delta Flight

Space Exploration Technologies Corp. (NASDAQ:SPCX) CEO Elon Musk mocked Delta Air Lines Inc. (NYSE:DAL) over its in-flight internet Tuesday, joking that the carrier’s connectivity could double as an artificial-intelligence containment system, after warning Delta could lose customers by choosing Amazon.com Inc.’s (NASDAQ:AMZN) Leo over Starlink.

Musk Renews Attack On Delta Wi-Fi

"Best way to sandbox an AI is to put it on a Delta flight – it will have no chance of accessing the Internet!" Musk wrote on social media platform X.

Best way to sandbox an AI is to put it on a Delta flight – it will have no chance of accessing the Internet!

— Elon Musk (@elonmusk) September 30, 2026

Musk’s latest jab came after he publicly predicted Bastian would "lose his job" over reported remarks attributed to the Delta CEO suggesting the airline rejected Starlink partly because it did not want to work with Musk, though Delta had not confirmed those comments.

Tuesday’s social media digs extend Musk’s criticism of Delta’s satellite strategy. On Monday, he said "Delta will lose a lot of customers" after a user contrasted the airline with United Airlines Holdings Inc. (NASDAQ:UAL), which is expanding Starlink across its fleet. United said in July that Starlink was installed on 450 mainline and regional aircraft, with fleetwide coverage targeted by the end of 2027.

Earlier this year, Musk slammed Delta’s approach, saying SpaceX wanted Starlink to work without an "annoying portal," while criticizing Delta’s proposed customer experience as more cumbersome.

Delta Bets On Amazon Leo Instead

Delta chose Amazon Leo instead. The airline will begin installing Leo on 500 aircraft in 2028, integrating the high-speed, low-latency service with Delta Sync. CEO Ed Bastian called it "the fastest and most cost-effective technology available" while highlighting Delta’s existing relationship with Amazon Web Services.

Delta’s existing Wi-Fi footprint is already extensive. The airline says free Delta Sync Wi-Fi, presented by T-Mobile, reaches more than 1,200 aircraft and has logged more than 160 million customer sessions since launch. Most of its global network now offers streaming-quality connectivity, with trans-Pacific coverage coming online in 2026.

Airline Satellite Wi-Fi Race Keeps Intensifying

Meanwhile, American Airlines Group Inc. (NASDAQ:AAL) plans to install Starlink on more than 500 narrowbody aircraft beginning in 2027, further sharpening the competition over satellite-powered in-flight internet.

Musk has also said SpaceX accepted lower-revenue airline deals to make Starlink "super easy to use and available to all passengers," turning his latest Delta joke into another shot in an increasingly crowded airline-connectivity battle.

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