Getting to Heathrow Airport between 1:00 AM and 5:00 AM in 2026 requires planning, as the high-speed Heathrow Express and the Elizabeth Line do not run 24 hours. The most reliable "budget" option is the National Express coach, which runs round-the-clock from Victoria Coach Station and other UK hubs directly to all terminals. For those in Central London, the N9 Night Bus provides a 24-hour service from Aldwych and Trafalgar Square, though it can take over an hour. If you prefer comfort, a Pre-booked Minicab or Uber is the most seamless way to travel, though you should expect a "night surcharge." A 2026 "pro-tip" is to use the Heathrow Hotel "Stay & Fly" packages; if your flight is at 6:00 AM, staying at an on-site hotel like the Premier Inn (Terminal 4) or the Hilton (Terminal 5) the night before allows you to walk to the check-in desk in minutes, avoiding the stress and high cost of midnight city transfers altogether.