South African Airways has filed aircraft changes for its Johannesburg-Dakar-Washington Dulles route, effective from March 25.
The airline plans to operate the route with an Airbus A330-200 aircraft, instead of an A330-300.
The 249-seat A330-300 has 46 seats in business and 203 in economy. The 222-seat A330-200 has 39 business-class seats and 186 in economy.
SAA recently increased capacity on this route in response to congestion following adverse weather conditions caused by an East Coast winter storm in the US in early January.