The 33-year-old Pole, ranked world No. 34 by the Women's Tennis Association (WTA), saw off Russian player Anastasia Pavlyuchenkova 7-6, 6-2 in their first-round encounter on Tuesday.
Up next for Linette at the tournament in the United States is Russia's Ekaterina Alexandrova.
Meanwhile, Poland's world No. 2 Iga Świątek and 31st-ranked Magdalena Fręch both had a bye in the first round.
The 2025 Miami Open runs until March 30.
(gs)
Source: IAR, PAP