The African carrier will expand to Gatwick in November with a three-times-weekly service from capital Addis Ababa, starting 21 November. It last served Gatwick in 2005 and 2006.
Ethiopian will fly the route on Tuesdays, Thursdays and Sundays, complementing its daily service at slot constrained Heathrow airport.
Flight ET718 will depart Addis Ababa at 12.15am arriving Gatwick at 5.15am. Return flight ET719 will depart Gatwick at 10.10am arriving Addis Ababa at 8.40pm.
