Heathrow Airport Scraps 100ml Liquid Rule! What You Need to Know (2026)

In a groundbreaking shift for travelers, Heathrow Airport has officially lifted the long-standing restriction on liquid containers, now allowing passengers to carry liquids in bottles as large as two liters through security checkpoints. This significant change comes after the airport has successfully deployed cutting-edge CT scanners throughout all its terminals, enhancing the passenger experience during security checks.

Moreover, travelers can now keep their laptops and other electronic devices in their bags, eliminating the need for cumbersome clear plastic bags to store liquids. With this update, Heathrow proudly claims the title of the world’s largest airport fully equipped with these advanced scanners.

However, while Heathrow may be leading in terms of size, it is not the first airport in the UK to implement these technological advancements. Airports such as Gatwick, Edinburgh, and Birmingham have already upgraded their systems in recent years, also adopting the more generous two-liter liquid limit.

The new CT scanners offer improved imaging capabilities for cabin baggage, enabling security personnel to efficiently process "thousands of passengers per hour" without compromising safety and security protocols.

The journey toward this upgrade has not been without its challenges. Back in 2019, former Prime Minister Boris Johnson pledged that the restrictive 100ml limit on liquids would be abolished by the end of 2022. Unfortunately, the global pandemic derailed these plans.

In December 2022, the Conservative government announced that state-of-the-art scanning technology would be rolled out at security lanes by June 2024, marking what they described as a major overhaul of airport security regulations in decades. Mark Harper, who was the Transport Secretary at the time, noted the impending end of the era dominated by "tiny toiletry" bottles.

Yet, as events unfolded, the ambitious June 2024 deadline proved unattainable for the UK’s largest airports. Smaller airports managed to implement the new scanners ahead of schedule, but a dramatic turn occurred on Friday, June 13, 2024, when the government ordered these smaller facilities to reinstate the 100ml limit, sparking outrage among airport operators.

Compounding the confusion, the European Union announced a return to the 100ml rule in July of the same year. This led to inconsistent messaging, with the Transport Secretary advising passengers to still adhere to the old 100ml regulations just a summer later.

Heathrow's CEO, Thomas Woldbye, expressed optimism about the £1 billion investment in upgrading airport facilities, emphasizing that it would allow travelers to spend less time preparing for security checks and more time enjoying their journey.

It’s important for passengers to remember that this new rule regarding liquid limits only applies to departing flights from Heathrow. Travelers should always verify the specific luggage restrictions at their respective airports, especially for return flights to the UK.

Heathrow Airport Scraps 100ml Liquid Rule! What You Need to Know (2026)

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