Overview: One of the World's Busiest Airports

London Heathrow (LHR) is one of the busiest international airports in the world, serving hundreds of destinations across the globe. With five terminals spread across a large site west of central London, knowing your way around before you arrive can save you stress, time, and energy.

Terminal Breakdown

Terminal Key Airlines Notes
Terminal 2 Star Alliance carriers, Aer Lingus, Virgin Atlantic Includes the Queen's Terminal — modern and well-designed
Terminal 3 American Airlines, Emirates, Qantas, Delta Good range of retail and dining options
Terminal 4 Some Skyteam members, KLM, Air France (select routes) Slightly further from central Heathrow; connected by rail/bus
Terminal 5 British Airways (primary hub), Iberia Largest and most modern terminal; two satellite buildings

Note: Terminal 1 is permanently closed. Always verify your terminal with your airline before travel.

Getting To and From Heathrow

Heathrow Express

The fastest option into central London, the Heathrow Express runs non-stop to London Paddington in approximately 15 minutes. It's a premium service — book in advance online for the best fares.

Elizabeth Line (TfL Rail)

A more affordable alternative to the Heathrow Express, the Elizabeth Line connects Heathrow to central London and beyond with a journey time of around 30–40 minutes depending on your destination. Accepts Oyster cards and contactless payment.

London Underground (Piccadilly Line)

The cheapest option, the Tube runs from Heathrow to central London in approximately 50–60 minutes, stopping at key stations including Earl's Court and King's Cross. Great for budget travelers and those not in a rush.

National Express Coaches

Coach services run to various UK cities from the Central Bus Station at Heathrow. Good value for destinations outside of London.

Connecting Flights and Transit Tips

  • Same terminal connections: Allow at least 60–75 minutes minimum
  • Different terminal connections: Allow at least 90 minutes; use the free inter-terminal transfer bus or the Heathrow rail loop (free for ticketed passengers)
  • Non-EU passport holders transiting: Check visa requirements — some nationalities require a transit visa even without leaving the airport

Airport Lounges at Heathrow

Heathrow has a wide variety of lounges available depending on your airline, class of travel, and lounge membership:

  • British Airways Galleries Lounges (T5): Multiple tiers including Club, First, and Concorde Room for premium passengers
  • Virgin Atlantic Clubhouse (T3): Widely praised for its design and food offering
  • No1 Lounges: Pay-on-entry or Priority Pass lounges available in several terminals — a good option for economy travelers wanting a quieter space

Food, Shopping, and Facilities

All major terminals have a solid selection of dining, from grab-and-go cafes to sit-down restaurants. Terminal 5 and Terminal 2 have the most extensive retail and food options. Currency exchange is available throughout — though airport rates are rarely competitive; use a travel card or ATM instead.

Final Heathrow Tips

  • Check in online and use bag drop where possible to skip long queues
  • Security queues can be very long during peak hours — arrive with time to spare
  • Free Wi-Fi is available throughout the airport
  • Download the Heathrow app for live flight information and terminal maps