For decades, the 100ml liquids rule has been a staple of airport security worldwide. It began as a response to liquid explosive threats in the mid-2000s, and since then, passengers have learned to carry travel-sized toiletries and pack transparent bags. But in 2025, London’s Heathrow Airport has taken a massive step forward by relaxing the 100ml liquids rule, bringing new convenience and speed to the traveler experience.
The updated heathrow airport rules are backed by cutting-edge technology and are part of the UK’s wider transformation of airport screening. These changes are a breath of fresh air for frequent fliers and holiday-goers, and they mark a shift in how aviation security operates in a post-pandemic, tech-driven world.
What Has Changed in Heathrow’s 100ml Liquids Rule?
As of early 2025, passengers departing from Heathrow are no longer restricted to carrying only 100ml of liquid in hand luggage. Instead, the airport now allows:
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Up to 2 liters of liquids in a single container
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No requirement to place liquids in a clear plastic bag
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No need to remove liquids or laptops from bags at security checkpoints
This revision to the 100ml liquids rule was made possible through the full rollout of next-generation CT (Computed Tomography) security scanners across all Heathrow terminals. These machines provide detailed 3D images of luggage, enabling security personnel to identify potential threats without relying on outdated scanning methods.
The change is part of a long-term plan that was first introduced in trial form in 2023 but has now become standard across Heathrow as part of a wider travel news UK transformation.
Why the Rule Was Updated – The Role of CT Technology
The implementation of CT scanners at Heathrow has been a game changer. Unlike traditional X-ray machines, CT technology allows:
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Rotating 3D images of baggage contents, making it easier to detect dangerous items
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Faster, more accurate scanning of liquids, electronics, and gels
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Less need for manual bag checks, which reduces delays and queues
This shift aligns with the broader goal of making air travel safer and more seamless. It also reduces passenger stress, especially for international travelers who often struggle to comply with restrictive heathrow airport rules and packing guidelines.
With the rise in demand for air travel in 2025, airport authorities have prioritized travel news UK improvements that balance safety with comfort.
How the New Rule Affects Travelers
Passengers flying out of Heathrow in 2025 can now:
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Bring full-size toiletries, perfumes, and drinks in carry-on luggage
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Avoid purchasing overpriced travel-size items
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Pass through security more quickly due to reduced manual checks
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Pack more freely without worrying about plastic bags or 100ml limits
These changes are especially helpful for business travelers, parents traveling with children, and those who previously had to check bags just to carry larger amounts of liquid.
Here’s a comparison of the old and new procedures under the heathrow airport rules:
| Feature | Old Rule (Pre-2025) | New Rule (2025) |
|---|---|---|
| Max liquid volume | 100ml per item | Up to 2 liters per container |
| Bagging requirement | Must be in 1L clear plastic bag | No plastic bag required |
| Remove items at security | Yes (liquids and laptops) | No need to remove anything |
| Scanner type | Traditional X-ray | Advanced CT scanners |
Exceptions and Things to Keep in Mind
While the new 100ml liquids rule update is a major win for Heathrow travelers, there are a few points to remember:
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Not all UK airports have adopted the change: Some smaller or regional airports may still enforce the traditional 100ml rule.
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Connecting flights may require compliance: If your connecting airport hasn’t adopted the new rule, you may still need to adhere to older restrictions.
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Airport staff may ask for extra checks if needed, especially for suspicious or unidentifiable liquids.
Passengers are advised to stay informed about travel news UK before flying and to double-check the policies at both origin and destination airports.
How This Update Compares Globally
Heathrow joins other major UK airports like Gatwick and Manchester that are rolling out similar changes. While the UK is leading in lifting the 100ml liquids rule, many other countries are still using traditional methods.
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Australia, Canada, and most EU airports still limit liquids to 100ml
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The United States is testing CT scanners in select locations but has not lifted the restriction nationwide
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Dubai and Singapore are watching the UK model closely but have not made announcements yet
As more airports embrace newer technology, the UK’s bold steps are expected to influence global standards over the next few years. For now, Heathrow is setting the benchmark for a smoother, more modern travel experience.
FAQs
Is the 100ml liquid rule still in effect at Heathrow in 2025?
No. Heathrow has removed the 100ml liquid restriction. Travelers can now carry up to 2 liters of liquid in their hand luggage.
Do I still need to put liquids in a plastic bag when flying from Heathrow?
No. There is no requirement to use a clear plastic bag for liquids at Heathrow in 2025.
What type of scanner is used at Heathrow now?
Heathrow uses advanced CT scanners, which provide 3D imaging and allow you to keep liquids and laptops inside your bag.
Will I need to follow the old 100ml rule at other UK airports?
Possibly. Not all UK airports have completed the upgrade to CT scanners, so some may still enforce the traditional 100ml rule.
Can I bring full-size shampoo and drinks in my carry-on at Heathrow?
Yes. As long as the liquid is not dangerous or restricted, you can bring larger containers up to 2 liters in size.
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Aanchal is a passionate writer with a keen interest in storytelling, content creation, and creative expression. She enjoys exploring diverse topics and crafting engaging narratives that captivate readers.