伦敦航线竞争非常激烈。 我们经常飞伦敦，然后用 BA Avios 积分飞欧洲大陆。 BA短途兑换非常有用。

兑换商务舱，尽管座位没有区别，但商务舱 entitled 您可以使用 LHR 的快速通道通过安检和出入境，以及任何航站楼的 BA 休息室和 T3 的所有 Oneworld 休息室，包括非常好的 CX, QF, even AA 休息室。Those extra Avios spent are WELL-WORTH it.

BA lounges are very large in size, multiple ones at each terminal.  Food offerings are very decent - both hot and cold.  Even during the busiest time of the day you would still be able to find a place to comfortably sit down.

Then depends on the length / time of the day of the flight,  business class gets some type of meals served in flight.  Often takes care of your need to find a place to eat upon arrival. 

UR and AMEX often have 20 to 30% transfer bonus to BA.  Use those offers which at least once to twice a year, to add value.