Romney's small plane landed at RDU just after 10:30 a.m. and he climbed into a Secret Service SUV. The presumptive GOP presidential nominee attended a fundraiser at the Angus Barn.
According to invitations to the event, people in attendance paid at least $1,000 to get in.
Later Wednesday, Romney spoke near Bank of America Stadium in Charlotte where President Obama will accept the Democratic Party's nomination later this year. Romney said President Obama is over his head and swimming in the wrong direction when it comes to the economy.
In a scathing indictment of Obama's policies, the Republican presidential nominee-in-waiting said virtually nothing Obama has done in his time in the Oval Office has helped create jobs.
Romney says more Americans have lost jobs, more houses have plunged in value, gasoline prices have doubled and health care costs have risen during Obama's tenure.
North Carolina is expected to be a key battleground state in the general election this fall.
Republican Party officials estimated Romney could raise about $1 million at the two North Carolina events Wednesday.