Clips shared widely on social media show a large production setup inside the terminal, with cameras, crew and several familiar faces gathered around a check-in area.
One video, posted by TikTok user @_ricky2.0, captured what appears to be a significant filming operation, while a second clip from the same account shows further activity involving members of the cast.
Another user, @daniel_floyd15, also shared footage of television cameras and production staff at the airport, fuelling speculation that a major storyline could soon take viewers away from Albert Square.
Among those reportedly seen filming was Denise Fox, played by Diane Parish, who appeared in a wheelchair and wearing a head covering – a detail that has not gone unnoticed by fans.
The character was recently diagnosed with cancer in the BBC soap, and viewers have suggested the scenes could point to a significant development in her storyline.
The BBC has not confirmed which characters are involved or the context of the scenes, but fans have been quick to speculate on what the airport setting could mean.
Some believe the storyline could involve an emotional departure from Walford, while others have suggested a possible medical trip abroad or a dramatic confrontation set at the airport.
EastEnders has a history of filming on location for major plots, often taking characters outside of Walford for key moments in long-running storylines.
The leaked clips have already attracted thousands of views online, with viewers eagerly awaiting confirmation of what lies ahead when the scenes are expected to air.