Informational Guide to London Heathrow Airport - LHR - Non Official

Heathrow Terminals

London Heathrow Airport Terminals

London Heathrow Airport (LHR) is the largest and busiest airport in the United Kingdom and one of the world’s leading international hubs.

Heathrow currently operates four passenger terminals — Terminal 2, Terminal 3, Terminal 4, and Terminal 5 — handling domestic, European, and long-haul international flights to hundreds of destinations worldwide.

Annual Traffic

Heathrow handles tens of millions of passengers every year, making it one of Europe’s busiest aviation hubs.

Main Hub Airport

British Airways and Virgin Atlantic operate major long-haul and European networks from Heathrow.

Large Terminal Complex

Walking distances can be considerable, especially during terminal transfers and busy periods.

History & Origins of Heathrow Airport

London Heathrow Airport originally opened as a small airfield during the 1920s before rapidly expanding after World War II into one of the world’s most important international airports.

The airport became a key global gateway during the rise of commercial aviation in the second half of the 20th century.

Good to know:

Terminal 1 permanently closed in 2015. Heathrow currently operates Terminals 2, 3, 4 and 5.

Heathrow Airport Terminal Map

Heathrow Airport covers a very large area west of Central London.

London Heathrow Airport Terminal Map

Terminal Overview

Terminal 2

The Queen’s Terminal

Terminal 2 mainly serves Star Alliance airlines and international carriers.

  • Modern terminal layout
  • European & international flights
  • Direct train access
  • Efficient passenger flow
Terminal 2 Heathrow
Terminal 2 entry

Terminal 3

Long-Haul Hub

Terminal 3 handles many long-haul international routes and premium airlines.

  • Virgin Atlantic operations
  • Premium lounges
  • Large shopping area
  • International departures

Terminal 4

SkyTeam & International

Terminal 4 is located south of the central terminal complex.

  • Connected by free trains
  • International leisure routes
  • Compact terminal design
  • Usually calmer outside peaks

Terminal 5

British Airways Hub

Terminal 5 is Heathrow’s flagship terminal and one of Europe’s largest airport buildings.

  • Main British Airways hub
  • Huge premium facilities
  • Satellite buildings
  • Long gate walking distances

How Heathrow Airport Works

Inside Heathrow Terminal 2
Inside Terminal 2

1. Check-In

Large airline check-in halls and self-service kiosks.

2. Security

Centralized screening areas with variable waiting times.

3. Shopping & Dining

Luxury retail, cafés, restaurants, and duty free.

4. Boarding Gates

Some gates require long walking distances or trains.

Services, Restaurants & Shopping

Heathrow Airport offers one of Europe’s largest selections of airport services, lounges, dining options, and premium retail stores.

See full Heathrow services guide

Terminal Comparison

Terminal Main Airlines Flight Type Notes
Terminal 2 Star Alliance airlines European & international Modern and efficient
Terminal 3 Virgin Atlantic & partners Long-haul international Busy premium terminal
Terminal 4 International carriers Long-haul & leisure Separate terminal complex
Terminal 5 British Airways Domestic & long-haul Largest Heathrow terminal

Average Waiting Times

Airport Process Typical Time Busiest Periods Notes
Check-In 15–45 min Morning departures Long-haul flights may require extra time
Security 10–40 min 06:00–11:00 Fast-track available
Immigration 15–60 min Arrival peaks eGates available
Baggage Claim 15–35 min Long-haul arrivals Depends on terminal
Inter-Terminal Transfers 20–45 min Peak hours Allow additional connection time
Heathrow is extremely large. Passengers connecting between terminals should always allow extra time, especially for international transfers.

Inter-Terminal Transport

Heathrow offers free inter-terminal transport via Heathrow Express trains, Elizabeth Line services, Underground connections, and shuttle buses.

Free Train Transfers

Free Heathrow Express and Elizabeth Line services connect terminals quickly.

Underground Connections

The Piccadilly Line connects Heathrow with Central London.

Transfer Times

Transfers can take between 20 and 45 minutes depending on route and queues.

London Heathrow Airport offers one of Europe’s most complete airport experiences, with excellent global connectivity, modern terminals, efficient transport links, and extensive passenger facilities.

Location Map

Walking Tour