UK ETA for Transit Passengers: Do You Need One for a Layover?

If you have a layover in the UK, you might be wondering: "Do I need a UK ETA just to wait for my next flight?" It's a common question, and the answer depends on a few things — your nationality, whether you stay airside or go landside, and how long your layover is.

This guide walks you through exactly when you need a UK ETA for a transit or layover. We'll cover the difference between airside and landside transit, which nationalities are exempt, and how to apply if you need one. By the end, you'll know for sure whether you're good to go or need to sort out your ETA before you fly.

Remember: this is general guidance. Always check the official UK government website before you travel, as rules can change.

What Is a UK ETA?

The UK ETA (Electronic Travel Authorisation) is a digital permission to travel to the United Kingdom. It's not a visa — it's a pre-travel check for non-visa nationals who don't need a visa for short visits. You apply online, pay a fee, and get a decision quickly.

Once approved, it's linked to your passport electronically.

The ETA is valid for multiple trips over two years, or until your passport expires. You can use it for tourism, business, study, and transit. But for transit, there are specific rules.

Do You Need a UK ETA for a Transit Layover?

The short answer: it depends on your nationality and whether you stay airside or go landside. Let's break it down.

Airside Transit (Staying in the International Zone)

If you arrive at a UK airport and stay in the international transit area — meaning you don't pass through UK border control — you are transiting airside. You don't "enter" the UK legally. For many years, airside transit passengers from most countries did not need any UK permission.

But that changed in 2023. Now, even airside transit passengers from many non-visa national countries need a UK ETA. The UK government extended the ETA requirement to cover transit.

So if you're a national of a country that requires an ETA for visits, you likely need one for airside transit too.

There are still some exemptions. Nationals of certain countries can transit airside without an ETA. These include EU/EEA countries, Australia, Canada, Japan, New Zealand, Singapore, South Korea, and the United States.

But this list is subject to change, so always check.

If you're from a country that is not on the exemption list, you'll need a UK ETA even if you never leave the airport. That includes popular transit nationalities like those from the Gulf states, South America, and parts of Asia.

Landside Transit (Leaving the Airport or Changing Terminals via Land)

Landside transit means you pass through UK border control. This happens if you need to collect baggage and recheck it, change airports, or simply want to leave the airport during a long layover. It also applies if you switch terminals at some airports where you must go through border control (e.g., London Heathrow terminals 2 and 3 to terminal 5 via land).

If you transit landside, you are entering the UK. You will need either a UK ETA (if you're a non-visa national) or a visa (if you're a visa national). There is no exemption for landside transit — everyone must have permission to enter.

So if your itinerary involves a landside transfer, you must have a valid UK ETA or visa before you travel. No exceptions.

Which Nationalities Need a UK ETA for Transit?

The UK ETA is for non-visa nationals — travellers from countries that do not need a visa for short visits. But not all non-visa nationals need an ETA for transit. The UK government has a list of countries whose citizens can transit airside without an ETA.

These are typically countries with a low visa overstay risk.

As of 2025, the following nationalities can transit airside without a UK ETA (but check the official list before travel):

• EU/EEA countries (including Ireland, which has a separate agreement)
• Australia
• Canada
• Japan
• New Zealand
• Singapore
• South Korea
• United States

If your country is not on this list and you are a non-visa national, you need a UK ETA for any transit — airside or landside. That includes many countries in the Middle East, South America, and Asia.

If you are a visa national (from a country that requires a visa for any UK visit), you cannot use an ETA. You need a full visa, even for airside transit. Check the UK visa national list on gov.uk.

How to Apply for a UK ETA for Transit

Applying for a UK ETA is straightforward. You do it entirely online, and you don't need to visit a visa application centre. Here's the process:

1. Go to the official UK ETA application website or use the UK ETA app.
2. Fill in your personal details, passport information, and travel plans.
3. Answer a few security questions.
4. Pay the fee (currently £20, but check for updates).
5. Submit and wait for a decision. Most are approved within minutes, but allow up to 72 hours.

Once approved, your ETA is linked to your passport. You don't need to print anything — it's electronic. But it's wise to keep a copy of the approval email.

For more details on the application process, see our guide on uk eta application requirements.

How Much Does a UK ETA Cost?

The UK ETA fee is £20 per application. This is a flat fee, whether you're visiting for tourism, business, or transit. There are no additional charges for transit-specific applications.

You can pay by credit or debit card. The fee is non-refundable, even if your application is refused. So make sure you meet the requirements before applying.

For the latest fee information, check our page on how much does a uk eta cost.

Who Needs a UK ETA? (Transit Edition)

We've covered the basics, but let's be specific. Here's a quick decision guide:

• You are a non-visa national from a country NOT on the airside exemption list: You need a UK ETA for any transit — airside or landside.
• You are a non-visa national from an exempt country (e.g., US, EU): You can transit airside without an ETA. But if you go landside, you need an ETA (or you may be exempt from ETA entirely if you are a British citizen or have right of abode).
• You are a visa national: You need a visa for any transit, even airside. An ETA is not available to you.
• You have a British passport or right of abode: You don't need an ETA. You can enter freely.

For a full breakdown, see our guide on who needs a uk eta.

Common Scenarios: Do You Need a UK ETA?

Let's look at real examples to make it clear.

Scenario 1: Dubai to New York via London Heathrow, staying airside

You are a UAE national. The UAE is a non-visa national country but not on the airside exemption list. You need a UK ETA, even though you won't leave the airport.

Apply before you travel.

Scenario 2: Sydney to Paris via London Gatwick, changing terminals landside

You are an Australian national. Australia is on the airside exemption list. But because you are changing terminals landside (e.g., from North Terminal to South Terminal at Gatwick, which requires passing through border control), you are entering the UK.

You need a UK ETA (or you may be eligible for the Electronic Travel Authorisation if you are a non-visa national). Actually, Australians currently need an ETA for any entry, including landside transit. So yes, you need one.

Scenario 3: Frankfurt to Los Angeles via London, staying airside, EU passport

You are a German national. EU nationals are exempt from the ETA for airside transit. You do not need an ETA.

But if you decide to leave the airport, you would need an ETA (or you may be exempt if you have settled status, but generally EU nationals need an ETA for visits now).

Scenario 4: Lagos to Toronto via London, landside transit, Nigerian passport

Nigeria is a visa national country. You cannot use an ETA. You need a full UK visa, even for transit.

Apply for a Visitor in Transit visa before you travel.

What Happens at the Border for Transit Passengers?

If you are transiting airside, you will not normally see a Border Force officer. You follow the purple "Flight Connections" signs and go directly to your departure gate. Your airline will check your documents before boarding your first flight, so they will verify your ETA or visa.

If you are transiting landside, you will pass through UK border control. You'll need to present your passport and, if required, your ETA or visa. The officer may ask about your onward travel plans.

Have your boarding pass ready.

If you don't have the correct permission, you could be denied boarding at your first airport, or refused entry at the UK border. That could mean being sent back or detained. So it's essential to get it right.

Can You Apply for a UK ETA at the Airport?

No. The UK ETA must be approved before you travel to the UK. You cannot apply at the airport on arrival. Border Force will not accept walk-in applications.

So apply online at least a few days before your trip.

If you have a last-minute layover and realise you need an ETA, you might be able to apply quickly using the app — many approvals come within minutes. But it's risky. Don't rely on same-day approval.

Apply well in advance.

What If Your Layover Is Overnight?

If you have an overnight layover and you plan to stay in the airport (airside), you may still need an ETA depending on your nationality. Some airports have hotels airside, so you can sleep without passing border control. But if the hotel is landside, you'll need to enter the UK, which requires an ETA or visa.

Check with your airline or the airport to see if you can stay airside overnight. If not, you'll need the appropriate permission.

Do You Need a UK ETA for a Connecting Flight to Ireland?

Ireland is part of the Common Travel Area with the UK. If you fly into the UK and then connect to Ireland, you will pass through UK border control (unless you are on a specific airside transfer). In most cases, you need a UK ETA or visa to enter the UK, even if your final destination is Ireland.

However, there is a separate scheme for some nationalities: the British-Irish Visa Scheme. But for most travellers, treat a UK connection to Ireland as a landside transit — you need permission.

What About Transit via Eurostar or Ferry?

If you transit through the UK by train (Eurostar) or ferry, the same rules apply. If you stay on the train/ferry and don't pass through UK border control (e.g., direct Eurostar from Paris to London and back out to Brussels without leaving the station), you may be airside. But in practice, Eurostar requires all passengers to pass through border control at the departure station.

So you will need a UK ETA or visa if you are not exempt.

For ferry transit, if you drive on and off without entering the UK, you might not need permission. But if you disembark, you do. Check with the ferry operator.

How the UK ETA Differs from a Transit Visa

A UK ETA is not the same as a transit visa. The ETA is for non-visa nationals, while a transit visa is for visa nationals. The ETA costs £20 and is valid for two years, while a transit visa costs more and is single-use.

If you are a visa national, you must apply for a Visitor in Transit visa or a Direct Airside Transit Visa (DATV). The DATV is for airside transit only, while the Visitor in Transit visa allows landside transit. Both require a full application and biometrics.

Non-visa nationals should never apply for a transit visa. Use the ETA instead. It's cheaper, faster, and covers more scenarios.

What If Your Flight Is Delayed or Cancelled?

If your flight is delayed and you miss your connection, you may be rebooked on a later flight. If you stay airside, your ETA status remains the same. But if the airline moves you to a landside hotel, you will need to enter the UK, which requires a valid ETA or visa.

In such cases, the airline may assist with documentation, but you are still responsible for having the correct permission. Always carry proof of your ETA approval, even if it's electronic.

If your flight is cancelled and you need to stay overnight in the UK, you must have a valid ETA or visa to enter. Without it, you could be stuck in the airport transit area until your new flight departs.

Can You Use a UK ETA for Multiple Transits?

Yes, the UK ETA is valid for multiple trips over two years. You can use it for multiple transits, as long as each transit is for a short period (usually up to 48 hours for airside, or up to 6 months for landside visits). There is no limit on the number of transits.

However, each time you transit landside, you are entering the UK. The ETA covers short stays, but if you plan to stay longer than 6 months, you need a visa. For transit, this is rarely an issue.

Keep your passport valid for the entire ETA validity period. If you renew your passport, you must apply for a new ETA.

What Documents Do You Need for a Transit Layover?

When travelling through the UK, you need your passport and, if required, your UK ETA or visa. The airline will check these before boarding your first flight. You may also need to show your onward boarding pass or itinerary.

For airside transit, you typically only need your passport and ETA (if required). For landside transit, you may need additional documents, such as proof of accommodation or funds, but this is rare for short transits.

Always carry a printed or digital copy of your ETA approval. While it's linked to your passport electronically, having a backup helps in case of system issues.

How Long Does a UK ETA Take to Process for Transit?

Most UK ETA applications are processed within minutes. However, some may take up to 72 hours. Apply at least a few days before your travel to avoid delays.

If you apply for an ETA specifically for transit, the processing time is the same as for any other purpose. There is no priority service for transit applications. So plan ahead.

If you have a last-minute transit, use the UK ETA app for faster processing. But don't count on same-day approval — it's not guaranteed.

What Are the Risks of Not Having a UK ETA for Transit?

If you travel without a required UK ETA, you risk being denied boarding at your departure airport. The airline checks your documents before you fly. If you don't have the correct permission, you won't be allowed to board.

If you arrive in the UK without an ETA, you may be refused entry and sent back on the next flight. This can cause significant delays, extra costs, and a negative travel record. In some cases, you could be detained while arrangements are made.

To avoid these risks, always check the requirements before booking. If in doubt, apply for an ETA — it's cheap and quick, and it covers you for any transit scenario.

Understanding the Airside Transit Exemption List

The airside transit exemption list is a specific set of nationalities that can pass through UK airports without an ETA. These countries have agreements with the UK based on low immigration risk. The list is reviewed periodically by the Home Office.

If your nationality is on this list, you can transit airside freely. But you must still follow the rules — you cannot leave the airport or pass through border control. Doing so would require an ETA or visa.

For example, a Japanese citizen flying from Tokyo to New York via London can stay in the transit area without an ETA. But if they want to visit London for a few hours, they need an ETA first.

How Airlines Verify Your UK ETA for Transit

Airlines are responsible for checking that you have the correct documents before you board. They use a system called the Advance Passenger Information (API) system. When you check in, the airline sends your details to UK Border Force.

If you need an ETA, the system will confirm whether you have one. If you don't, the airline may deny boarding. This is why it's crucial to have your ETA approved before you travel.

Some airlines may also ask to see your ETA approval email or app confirmation. Keep a digital copy on your phone or a printed copy in your carry-on.

Transit Through Multiple UK Airports

If your itinerary involves transiting through more than one UK airport, the rules become stricter. For example, flying into Heathrow and then connecting to a flight from Gatwick requires landside transit. You must pass through border control at Heathrow and travel between airports.

This always requires a UK ETA or visa. There is no airside exemption for multi-airport transits. You are effectively entering the UK.

Plan such itineraries carefully. Allow enough time for border control, baggage collection, and travel between airports. Also ensure your ETA or visa covers the entire duration of your landside stay.

What About Transit Passengers with Dual Nationality?

If you hold two passports, you can choose which one to use for travel. But you must be consistent. If you use a passport from a country that requires an ETA, you need one.

If you use a passport from an exempt country, you may not.

For example, a person with both Brazilian and Italian passports can use their Italian passport to transit airside without an ETA. But they must present the same passport at check-in and at the UK border.

Always ensure that the passport you use is valid for the entire trip. Dual nationals should carry both passports in case of questions from airline staff or border officers.

Transit for Crew Members and Airline Staff

Airline crew members on duty have separate rules. They typically do not need a UK ETA for airside transit if they are working. But they may need one if they are travelling as passengers or on standby.

If you are a crew member on a layover, you may be allowed to enter the UK under a crew visa or agreement. Check with your airline's travel department for specific guidance.

For non-crew employees or contractors, standard ETA rules apply. Always verify your status before booking travel through the UK.

How Brexit Affected Transit Rules

Before Brexit, EU/EEA nationals could transit the UK freely. After Brexit, the UK introduced the ETA system for all non-visa nationals, including EU citizens. This changed transit rules significantly.

Now, EU nationals need an ETA for landside transit, but are exempt for airside transit. This is a major shift from the pre-Brexit era when EU nationals could enter the UK without any permission.

If you are an EU national, always check the current rules. The situation may evolve as the UK adjusts its border policies post-Brexit.

Transit for Children and Minors

Children and minors need their own UK ETA if they are required to have one. There is no family exemption. Each traveller, regardless of age, must have the correct permission.

Parents or guardians should apply for a UK ETA for each child. The application process is the same as for adults. You will need the child's passport details.

If a child is travelling alone, the airline may have additional requirements. Check with the airline before booking. The child's ETA or visa must be in place before travel.

Transit for Passengers with Disabilities

Passengers with disabilities have the same ETA requirements as other travellers. However, airports provide assistance for those who need help transiting. Contact your airline or the airport in advance to arrange support.

If you need to stay airside overnight due to a disability, some airports have accessible facilities. But you still need the correct ETA or visa if you are not exempt.

Always inform the airline of any special needs when booking. They can help ensure a smooth transit experience.

How to Check Your UK ETA Status for Transit

After applying, you can check your UK ETA status online. Use the official UK government website or the UK ETA app. Enter your passport number and application reference.

If your ETA is approved, you will see a confirmation. If it is pending, wait for the decision. Do not travel until you have approval.

If your ETA is refused, you can appeal or apply for a visa instead. But for transit, a refusal may mean you cannot travel through the UK. Consider alternative routes.

Common Mistakes When Applying for a UK ETA for Transit

One common mistake is applying too late. Some travellers wait until the day before travel, risking delays. Apply at least a week in advance to be safe.

Another mistake is entering incorrect passport details. Double-check your passport number and expiry date. Errors can cause delays or refusal.

Finally, some travellers assume they are exempt when they are not. Always verify your nationality against the official list. If in doubt, apply for an ETA.

Alternatives to Transiting Through the UK

If you find the UK ETA rules inconvenient, consider alternative transit hubs. Airports in Dublin, Amsterdam, Paris, or Frankfurt may have different requirements. Check the rules for each country before booking.

Some travellers choose to avoid the UK entirely for layovers. This is especially common for those from visa national countries who need a full UK visa. Look for direct flights or transit through countries with easier rules.

However, the UK remains a major hub for many routes. With proper planning, the ETA process is simple and affordable.

Future Changes to UK ETA Rules for Transit

The UK government may expand the ETA system in the future. More nationalities could be added to the requirement. Conversely, some exemptions may change.

Stay informed by checking the official UK government website regularly. Subscribe to travel alerts if available. This ensures you always have the latest information.

For now, the rules are clear. Use this guide as a reference, but always verify before you book.

Key Takeaways

• Airside transit may not require a UK ETA if you are from an exempt country (EU, US, Canada, Australia, etc.). But many nationalities now need an ETA even for airside transit.
• Landside transit always requires a UK ETA (for non-visa nationals) or a visa (for visa nationals).
• Apply for a UK ETA online before you travel. It costs £20 and is valid for two years.
• Check your nationality and transit plans against the official UK government list before booking.
• If in doubt, apply for an ETA — it's cheap and quick, and it covers you for any transit scenario.

Still unsure? Visit the official UK government website for the most up-to-date information. Safe travels!

For official guidance, visit the UK Government ETA.