RADAR GHOSTS - Canadian Pacific Air Lines Flight 3505 Mystery

RADAR GHOSTS - Canadian Pacific Air Lines Flight 3505 Mystery

July 9, 2026 · 8 min · Season 13 · Episode 17

About this episode

The episode explores the mysterious disappearance of Canadian Pacific Air Lines Flight 3505 over the North Pacific in 1951.

The world's largest ocean has a way of keeping its secrets. Across the endless expanse of the North Pacific, ships have vanished... submarines have disappeared... and airplanes have simply slipped into history without a trace. On July 21, 1951 , one routine flight joined that haunting list. A Canadian Pacific Air Lines Douglas DC-4 departed Vancouver for Tokyo carrying thirty-seven souls, many of them United Nations personnel on an important mission. The weather was calm. The aircraft was experienced. Nothing appeared out of the ordinary. Then, somewhere between civilization and the endless horizon... the radio fell silent. More than seventy years later, the Pacific still refuses to reveal what happened aboard Canadian Pacific Air Lines Flight 3505 . Tonight, we'll retrace the flight's final known moments, examine every major theory, and uncover why this forgotten disappearance remains one of aviation's most haunting unsolved mysteries. Welcome to Mysteries in the Dark .

People in this episode

Hosts: Luna Sparks, Omar Trekker

Topics covered

Keywords

Mentioned in this episode

Organizations: Canadian Pacific Air Lines

Places: Vancouver, Tokyo

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