Yes, private planes can land at London Heathrow (LHR), but it is often considered one of the most challenging and expensive airports in the world for private aviation. Because Heathrow is a massive, slot-constrained international hub, private jet operators must book arrival and departure slots well in advance, and flexibility is extremely limited compared to dedicated private airports. Private flyers typically use a Fixed Base Operator (FBO), such as Signature Aviation, which provides a private terminal and VIP handling away from the commercial crowds. However, the landing and handling fees at Heathrow are significantly higher than at nearby alternatives like Farnborough or Biggin Hill, and the risk of taxiway delays is much greater. The primary reason a private traveler would choose Heathrow is for a "seamless transfer" if they are connecting to a long-haul commercial flight; otherwise, most private jet passengers avoid the congestion of Heathrow in favor of more specialized, "business-only" airports in the London area.