Airport warning as travel expert reveals most Brits unaware of new rule being introduced today

With the way the weather's going in the UK, it's no surprise that Brits are looking to spend their summers abroad.

But with travelling comes the airport experience, part of which is the dreaded security check-in.

And with 83 percent of British travellers unaware of a new travel rule, it's probably advisable they check ahead before packing.

This new travel rule could be a game changer. (Getty Stock Image)

The new changes that come into effect as of 1 June mean passengers can carry up to two litres of liquid in their hand luggage. They can also take their laptops onboard too.

Not every airport will be running on the same schedule, however.

Airports such as Stansted, Heathrow, Gatwick and Manchester have all admitted that they won't have the new rules in place straight away.

Smaller airports, like Teesside, London City, Birmingham and Newcastle, all have new screening technology in place and are ready to go live with the new rules from day one.

Given that different airports will be operating under different schedules, it's no wonder that flyers are feeling uncertain.

A survey conducted by AirAdvisor found that 83 percent of people had no idea what the rules around liquids would be at airports over the summer.

Many Brits are hoping to jet off somewhere sunny this summer. (Getty Stock Image)

The new rule only applies to UK airports, meaning that other countries' rules would apply there - even when boarding a return flight to the UK.

Previously, passengers were only permitted to have liquids of under 100ml in their hand luggage, sealed in a 20cm x 20cm bag.

Anton Radchenko, founder and CEO of AirAdvisor, said: "Considering this rule holds significant importance and will redefine how we travel, people should be aware of it."

With only a select few airports bringing the new rule into effect on June 1, passengers need to be vigilant about their airport of choice.

Delayed airports like Gatwick, Heathrow and Manchester are expected to bring in the new rule in the first few months of 2025.

The AirAdvisor survey also found that 97 percent of respondents didn't know which airports would be scrapping the 100ml rule over the summer.

New rules about liquid allowances will soon be coming into effect. (Getty Stock Image)

Radchenko said: "If you're travelling through any of these airports, the old rules will still apply to you even if you're travelling to/from London City, Newcastle, and Teesside, which have scrapped the 100ml liquid rule.

"Passengers flying on this route must be careful and aware that old rules will still apply this summer. I don't think airlines are prepared for it.

"Airlines are also to blame for this confusion because they hardly keep their passengers informed with relevant updates.

"Unless airlines communicate proactively with their passengers and inform them that the old hand luggage rules will stand in place this summer, there will be confusion.

"Ideally, they should send SMS [messages], emails, and call alerts to ticket-holders and previous passengers alike."