SpaceX’s Starlink has turned in-flight Wi-Fi into a land grab, and right now it’s holding most of the land. With commitments spanning 7,000 to 8,000 commercial aircraft and a constellation of roughly 9,000 to 10,000 satellites already in orbit, Starlink has built the kind of lead that makes competitors look less like rivals and more like cautionary tales about timing.

Amazon’s low Earth orbit satellite initiative, known as Amazon Leo, has managed to deploy approximately 214 satellites. For context, that’s roughly 2% of Starlink’s fleet. Amazon Leo’s first major in-flight Wi-Fi installations aren’t expected to begin until 2028.

The airline scorecard

United Airlines, Southwest, Alaska Airlines, and American Airlines have all moved toward Starlink adoption. American Airlines finalized a deal in May 2026 covering more than 500 jets, with connectivity speeds of up to 1 Gbps per antenna.

Several of these carriers are targeting complete fleet upgrades by the end of 2027.

Delta Air Lines chose Amazon’s service for 500 aircraft, and JetBlue has also signed on. Amazon is promising speeds three to five times faster than Delta’s current in-flight service, with installations beginning in 2028.

Why the satellite count matters

Starlink’s constellation of 9,000 to 10,000 satellites creates a mesh dense enough to provide consistent coverage across oceanic routes, polar paths, and everywhere in between. Amazon Leo’s 214 satellites can’t replicate that coverage.

SpaceX’s experience launching its own rockets gives it a structural cost advantage. Every Falcon 9 launch that carries Starlink satellites is essentially an in-house logistics operation. Amazon, by contrast, has relied on partnerships with launch providers, including its own Blue Origin.

What this means for investors

That said, Amazon’s strategy isn’t without logic. Delta’s partnership suggests that some carriers are willing to bet on Amazon’s broader ecosystem play, potentially tying connectivity into AWS-powered data analytics, loyalty programs, and operational tools.

The risk for Amazon is that the window for catching up narrows with every Starlink installation. By the time Amazon Leo reaches operational scale in 2028 or beyond, Starlink could have locked in the majority of the addressable market, leaving Amazon to compete for a shrinking pool of uncommitted carriers.