Traditional in-flight Wi-Fi relied on Geostationary (GEO) satellites 35,786 km above Earth, introducing high latency (600–800 ms) and narrow beams. Low Earth Orbit (LEO) constellations like Starlink orbit at ~550 km, reducing latency to 30–50 ms with multi-gigabit regional spot beams.
When airlines charge $15–$30 per flight, takeup rarely exceeds 15% to 20%. When carriers like Delta, JetBlue, and Hawaiian make Wi-Fi free, adoption instantly surges past 75%, causing severe packet contention unless active QoS bandwidth shaping is enforced.
Low latency enables seamless Zoom, FaceTime, and Teams calling. However, unconstrained phone conversations in tight aircraft cabins represent the chief operational complaint for flight attendants, prompting several carriers to enforce strict port/SIP firewalls.