The additions form part of an extensive update to BA's summer 2027 programme, which will take effect late next March.
Other changes include increasing seats to Rio de Janeiro with its daily service becoming a dedicated route without onward legs, and upgrading its route to San Jose in Costa Rice to a year-round operation.
Elsewhere, BA will operate new flights to Kilimanjaro and Zanzibar in Tanzania from May 2027. There will also be extra flights on popular routes to destinations including Cape Town and Las Vegas.
Neil Chernoff, British Airways’ Chief Planning and Strategy Officer, said: “We are strengthening our wider long-haul network, adding capacity to a number of popular destinations across Africa, the Americas and the Caribbean.
“By increasing frequencies and extending seasonal services, we're giving customers more choice and flexibility, while deepening London’s connectivity to key destinations around the world.”
BA's schedule changes include:
- Buenos Aires will move to a daily non-stop service, with an onward tag to Santiago, Chile. Clients can benefit from the only non-stop flights between London and Buenos Aires, as well as the convenience of daily services to Santiago, providing more choice and flexibility across South America
- There will be an increase in seat capacity to Rio de Janeiro, Brazil as the daily service moves to a dedicated route, without onward legs
- Heathrow to San Jose, Costa Rica, becomes a year-round service, at three per week
- Heathrow to Cape Town, South Africa, increases its summer frequency, up from seven per week to 10 per week
- Heathrow to Las Vegas increases from 13 per week to 14 per week
- Gatwick to Barbados, which launches this October, will continue for the summer 2027 season, including onward legs to Grenada, Guyana and Tobago
- Gatwick to Saint Lucia will continue to operate as a direct service at four per week for summer 2027
BA has also recently announced two new long-haul destinations – Gatwick-Colombo will commence on 23 October, while BA will also serve Melbourne via Kuala Lumpur starting 9 January 2027.