By Colleen Goko

JOHANNESBURG, June 18 (Reuters) - U.S. hotel chains Hilton HLT.N and Marriott MAR.O have announced African expansion drives to tap into the continent's rapid tourism growth.

Rising business and leisure travel on the continent has made it increasingly attractive for multinational companies and Hilton said on Wednesday that it plans to more than triple its African portfolio to more than 160 hotels.

The company plans to enter Angola, Ghana and Benin for the first time while returning to Madagascar and Tanzania, its statement said without providing a specific time horizon for the expansion plans.

Marriott expects to add 50 properties by 2027, it said on Wednesday. Those will include entry into five new countries: Cape Verde, Ivory Coast, the Democratic Republic of Congo, Madagascar and Mauritania.

The group's existing African portfolio encompasses nearly 150 properties and 26,000 rooms across 20 countries and 22 brands.

Airlines have also increased their African capacity.

Emirates now offers 161 weekly flights across Africa, recently adding daily services to Entebbe and Addis Ababa. United Airlines UAL.O launched a direct Washington-Dakar route in May and Delta DAL.N will begin a seasonal daily flight to Accra in December.

International arrivals to the continent rose 9% year on year in the first quarter of 2025, the United Nations World Tourism Organization says, 16% above the same period of pre-pandemic 2019.

That momentum is translating into economic impact. Tourism accounts for between 3% and 7% of gross domestic product in countries such as Kenya, Morocco and South Africa, and up to 15% in tourism-heavy economies such as Namibia, World Bank and national statistics show.

(Reporting by Colleen GokoEditing by David Goodman)

((Colleen.Goko@thomsonreuters.com;))