Technically, the capability for video conferencing exists on many modern aircraft equipped with high-speed satellite Wi-Fi (like Starlink or Viasat), but taking a Zoom call is almost universally prohibited by airline policy and, in some jurisdictions, by federal regulation. The FAA and FCC have long maintained bans on "voice over internet protocol" (VoIP) and cellular calls during flight, primarily to prevent potential interference with sensitive cockpit navigation and communication equipment. Beyond the technical reasons, there is a strong "social" prohibition; airlines fear that hundreds of passengers talking at once in a confined cabin would create an unbearable environment. While you can often use the Wi-Fi to send messages, emails, or even stream movies, most inflight portals explicitly block the bandwidth or protocols required for Zoom, Teams, and FaceTime. If you attempt a call, you will likely find the service blocked, or you may be politely (but firmly) asked by a flight attendant to end the session to respect the "quiet environment" of the cabin.