British Airways

British Airways is the national airline of the United Kingdom, based near its main hub at London Heathrow Airport. British Airways is the largest airline in the United Kingdom based on it’s fleet size, number of international flights and total number of international destinations. British Airlines passengers originating at non-London airports must connect via London after British Airways discontinued all direct overseas flights from UK airports outside London.

British Airways has codeshare agreements with:
Aer Lingus
Air Berlin
Flybe
Kingfisher Airlines
Loganair
Meridiana fly
WestJet

British Airways has codesharing with Oneworld alliance members

American Airlines
Cathay Pacific
Finnair
Iberia
Japan Airlines
LAN
Malev
Mexicana
Qantas
Royal Jordanian
S7 Airlines