Heathrow is celebrating a major milestone this May as the UK’s biggest airport turns 80 years old and it marked the occasion with a surge in demand that shows no sign of slowing.

The airport handled more than 7.1 million passengers in May, just over 1% down year‑on‑year, as travellers gear up for the summer peak.

The celebrations came with a new record: 22 May became Heathrow’s busiest May day ever, with 262,000 passengers passing through the terminals. It’s a fitting moment for an airport that has, since its first commercial flight in 1946, connected nearly 3 billion passengers across 22 million flights, cementing its position as one of the world’s most connected hubs.

Investment continues as Heathrow looks to the future

To keep pace with demand, Heathrow is pushing ahead with a series of upgrades. Work has begun on a major refurbishment of Terminal 4’s car parks and check‑in areas, alongside new accessibility improvements such as an enhanced assistance zone in T2 and autonomous wheelchair trials in T3 — a UK airport first.

But the airport warns that continued investment is essential. Heathrow argues that the CAA’s proposed cuts to its investment plans risk undermining the UK’s competitiveness at a time when other countries are expanding their hubs. CEO Thomas Woldbye says the airport is “operating at capacity” and that passengers want “more choice, better connections and good value”, all of which depend on unlocking new growth.

Heathrow’s privately funded plan for the next five years aims to support up to 90 million passengers annually, boost trade and improve journeys, aligning with the Government’s focus on economic growth.

A strong May across global markets

Traffic remained robust across most regions, with notable growth in Africa (+5.7%), Asia‑Pacific (+2.8%) and North America (+1.3%). Cargo volumes also rose slightly, up 2.1% year‑on‑year, driven by strong performance in Asia‑Pacific and North America.

Eighty years on, Heathrow remains the UK’s gateway to the world

From a single commercial flight in 1946 to becoming the UK’s most valuable port by trade, Heathrow’s 80th birthday is more than a milestone — it’s a reminder of the airport’s central role in keeping Britain connected. And with demand rising and summer travel approaching, the next chapter looks set to be just as busy.