Chung Yoo-Ra, 20, was arrested immediately after boarding a Korean Air flight from Amsterdam to Incheon early today morning after being extradited from Denmark a day earlier, Yonhap news agency said citing Seoul prosecutors.
Chung is the only child of Choi Soon-Sil, the close confidante of former President Park Geun-Hye.
Choi -- nicknamed "Rasputin" for her close influence over the then-president -- is a key figure in the influence- peddling scandal that sparked huge street protests demanding Park's ousting.
Chung, who was arrested by Danish police in January, dropped her appeal against extradition from Denmark, a Danish court announced last week, as Seoul wants to detain her for questioning.
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The daughter is the alleged beneficiary of millions of dollars which South Korea's largest conglomerate Samsung paid to finance her equestrian training and luxurious lifestyle in Europe.
A team of five officials from the prosecutors' office was dispatched to Amsterdam to make the arrest with a pre-issued warrant, Yonhap said.
Upon arrival at Incheon International Airport later today, Chung is expected to make a short statement to the press and taken to the Seoul Prosecutors' Office for questioning.