The cheapest way to park at London Heathrow in 2026 is almost always the Official Park & Ride (Long Stay) car parks, provided you book well in advance. These lots are located on the airport perimeter and offer free shuttle buses to the terminals every 15 minutes. For even lower prices, many travelers use "Off-Airport" third-party lots or "Hotel Parking" packages (Stay and Fly). Another popular budget hack is using platforms like JustPark or YourParkingSpace, which allow you to rent a private driveway from a local resident near a Tube station like Hatton Cross or Hounslow West; you can then take the Piccadilly Line for one or two stops directly into the terminal for just a few pounds. If you only need to park for a few minutes to drop someone off, the Long Stay car parks offer the first 29 minutes for free, which is significantly cheaper than the £7.00 "Terminal Forecourt" drop-off fee. Always avoid "Drive-up" rates at the airport, which can be triple the price of a pre-booked spot.