UK ETA Guide for US Cruise Passengers: Step-by-Step Instructions
If you’re an American travelling to the UK for a cruise, there’s an important piece of paperwork you now need to understand: the UK Electronic Travel Authorisation (ETA).
Since 25 February 2026, US citizens travelling to the UK for a visit generally need an approved ETA before travelling, unless they already have other valid UK immigration permission or qualify for an exemption.
That includes Americans flying into London before a cruise from Southampton, travelling to a cruise from Dover or Tilbury, or visiting the UK as part of a wider cruise holiday.
But there is an important exception for some airport connections: if you are simply transiting through a UK airport without passing through UK border control, you do not need an ETA.
This guide explains exactly when American cruise passengers need a UK ETA, how to apply, what it costs, how long it lasts and what happens if you get a new passport.
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What Is a UK ETA and Do US Cruise Passengers Need One?
The UK Electronic Travel Authorisation (ETA) is a digital travel permission for visitors who can travel to the UK without a visa.
For most US citizens visiting Britain for tourism, an ETA is now required.
You will generally need one if you’re:
Flying from the US to London before a cruise
Travelling to Southampton to board a cruise
Boarding a cruise from Dover or Tilbury
Visiting London before or after your cruise
Passing through UK border control during an airport connection
An ETA allows eligible visitors to travel to the UK for visits of up to six months, subject to the conditions of the permission. It does not guarantee entry to the UK.
Each traveller needs their own ETA, including children and babies, unless they are exempt.
Who does not need a UK ETA?
There are exemptions. For example, you do not need an ETA if you are travelling on a British or Irish passport, already have a UK visa or have permission to live, work or study in the UK.
If you’re travelling on a US passport and don’t have another form of UK immigration permission, an ETA will generally be the requirement for a short tourist visit.
UK ETA Quick Facts for Americans
Before you open the application, here is a quick overview of what to expect:
Official Cost: £20 GBP (approximately $26 USD).
Avoid third-party scam sites charging massive processing markups.
Processing Time: Usually approved within a day, but can take up to 3 business days if manual review is required.
Validity: Valid for 2 years or until your US passport expires (whichever comes first).
Entry Terms: Valid for unlimited trips to the UK for stays of up to 6 months at a time.
Pre-Application Checklist: What You Need
To complete the application smoothly, have these items ready on your kitchen table:
Your physical US passport.
A smartphone with NFC capability (if you can use Apple Pay or Google Pay, your phone has this).
A credit card, debit card, Apple Pay, or Google Pay to pay the fee.
A quiet space with good lighting to take a digital headshot.
Step-by-Step UK ETA Application Process for US Cruisers
The absolute easiest way to apply is via your smartphone using the official UK ETA mobile app (available on the Apple App Store and Google Play). If you do not have a smartphone, you can use the desktop web portal at GOV.UK.
Step 1: Download the App and Scan Your Passport
Open the official app and use your phone's camera to take a photo of the main ID page of your US passport. Make sure there is no glare from overhead lights blocking the text or numbers.
Step 2: Read Your Passport's Biometric Chip
Place your smartphone flat against the front or back cover of your physical US passport. The app uses your phone's internal scanner to read the digital security chip embedded inside your passport. It will beep or vibrate when successful.
Step 3: Complete a Facial Scan
Hold your phone up to your face like you are taking a selfie. Follow the on-screen instructions to complete a brief facial scan. This matches your live face to the biometric photo inside your passport chip.
Step 4: Add Your Personal and Travel Info
You will be prompted to enter your home address, contact details, and employment information. Also the "Reason for Travel". Enter the personal and travel information requested by the application and answer the questions accurately.
The official application requires passport information, a face photograph and payment details.
Cruise Tip: You do not need to have your specific cruise cabins or flights locked in to apply. You can complete this application well before your final cruise documents are issued.
Step 5: Answer the Security Questions
Carefully answer a few quick "Yes" or "No" questions regarding security clearances, global criminal records, and prior immigration histories.
Step 6: Review, Pay, and Submit
Check that your name perfectly matches the spelling on your physical passport. Pay the £20 fee securely through the app using your preferred payment method and hit submit.
Do I Need a UK ETA to Board a Cruise From Southampton?
If you’re a US citizen travelling to Britain to board a cruise from Southampton, you will generally need a UK ETA unless you have another form of UK immigration permission or qualify for an exemption.
This applies whether you:
Fly into London Heathrow and travel to Southampton
Spend a few days in London before your cruise
Travel directly from Heathrow to Southampton
Stay overnight in Southampton before embarkation
Your ETA is linked electronically to the passport you used for your application, so make sure you travel with that same passport.
Important: The ETA is a UK travel requirement. It is separate from European entry requirements such as the EU Entry/Exit System (EES).
Do I Need a UK ETA to Cruise From Dover or Tilbury?
Yes, if you’re a US citizen travelling to the UK to board a cruise from Dover or Tilbury, you will generally need a UK ETA unless you qualify for an exemption or already have other valid UK immigration permission.
It doesn’t matter that your ship is leaving Britain shortly after you arrive. If you’re entering the UK for your cruise, you need to meet the UK’s entry requirements.
This is particularly relevant if you’re flying into London and then travelling overland to your cruise port.
Your ETA is linked to your passport, so check that you are travelling with the same passport used for your application.
Do I Need a UK ETA If I’m Staying in London Before My Cruise?
Yes. If you’re a US citizen visiting Britain before your cruise, you’ll generally need a UK ETA unless an exemption applies.
It makes no difference whether you’re staying in London for one night or several days before travelling to Southampton, Dover or another UK cruise port.
For example:
USA → London → Southampton → cruise
requires you to meet the UK’s entry requirements when you travel to Britain.
Your ETA is not a separate permit for your cruise. It is your UK travel authorisation for the visit, subject to its conditions.
Do Children and Babies Need a UK ETA?
Yes. Every US citizen travelling to the UK needs their own ETA, including babies and children, unless they qualify for a specific exemption.
An ETA is linked to an individual passport, so you cannot add your children to your own ETA. Each child needs a separate application and their own approved ETA before travelling.
For most American families visiting the UK for a holiday or cruise, this means every member of the family needs an ETA, regardless of age.
There are exceptions. For example, a child travelling on a British or Irish passport does not need a UK ETA. Other exemptions apply to people who already have UK immigration permission or who meet specific exemption criteria. (GOV.UK)
Cruise tip: Don’t assume that babies and young children are exempt because they don’t need the same travel documents as adults. Check every passport individually before your trip.
What happens to my UK ETA if I get a new passport?
Your ETA is linked to the passport you used when you applied.
If you get a new passport, your existing ETA does not transfer to it. You will need to apply for a new ETA before travelling to the UK.
This is one of the easiest things to overlook when planning a cruise several months ahead.
UK ETA vs EU EES vs ETIAS
If your cruise combines a visit to Britain with a European itinerary, you may come across three similar-sounding terms: UK ETA, EU EES and ETIAS.
They are completely different systems.
UK ETA is permission for eligible visitors to travel to the UK.
EU EES is the European Entry/Exit System, which electronically records eligible non-EU travellers crossing the external borders of participating European countries.
ETIAS will be a European travel authorisation for visa-exempt travellers when it becomes operational.
So, in simple terms:
UK ETA = UK travel permission
EES = European border registration
ETIAS = European travel authorisation
If your cruise takes you from London or Southampton into Europe, you’ll need to understand the separate European rules as well.
Read next: EU EES for Cruise Passengers: European Passport Rules, 90-Day Rule & 10-Year Passport Rule
Frequently Asked Questions: UK ETA for US Cruisers
Do I need a UK ETA if I am just transiting through a UK airport?
It depends on whether you pass through UK border control. If you’re transiting through a UK airport and remain airside without passing through border control, you do not need an ETA.
If you pass through UK border control during your connection, you do need an ETA if you are otherwise required to have one.
This can be particularly important for cruise passengers connecting through Heathrow or another UK airport before continuing to a cruise in Europe.
If you’re unsure whether your connection is airside or requires you to pass through UK border control, check with your airline before travelling.
Can I apply for the UK ETA on a desktop computer instead of the mobile app?
Yes. While the UK ETA mobile app is the fastest option because it uses your phone's camera to scan your passport's digital chip, you can also apply online using a laptop or desktop computer via the official GOV.UK web portal. You will just need to upload a digital photo manually.
What happens if my UK ETA application is delayed or denied?
If your application takes longer than the standard few minutes, it has likely been flagged for a manual security review, which can take up to 3 business days. If your ETA is outright denied, you will not be allowed to board your flight or ship. You must apply for a standard UK Visitor Visa instead, which takes much longer to process.
Do kids and babies from the US need their own UK ETA?
Every child and baby needs their own ETA if they are required to have one.
Can I use the same UK ETA for back-to-back cruises or multiple trips?
Yes. Your UK ETA is valid for multiple entries over a 2-year period (or until your passport expires). You can use it to enter the UK, sail out on a cruise, return to a UK port, and even come back for an entirely separate vacation later in the year, as long as each individual stay does not exceed 6 months.
The Cruise Lowdown Golden Rules for the UK ETA
Apply at Least 3 Days Before Flight Departure: While most Americans get approved in a few minutes, any unexpected glitch can push the review time to 3 business days. Do not wait until you are standing at the airport check-in desk!
It Links Directly to Your Passport: There is no physical paperwork to print out. The ETA is electronically tied to your specific US passport number. When the airline agent scans your passport at check-in, your ETA approval will show up automatically in their system.
Got a New Passport? Reapply! Because the ETA is bound to your physical document, getting a renewed US passport completely voids your existing UK ETA. You must apply for a brand new one before you travel.
Make sure to head over to the official UK Government ETA Portal to secure your travel authorization early, and then get back to planning the fun parts of your cruise vacation!
Disclaimer: Cruise Lowdown is an independent travel publication and is not affiliated with the UK Home Office or any government agency. While we make every effort to ensure the accuracy of our travel guides, immigration rules, fees, timelines, and requirements can change without notice. Travelers are solely responsible for verifying current entry requirements directly via the official GOV.UK portal before booking travel. Cruise Lowdown accepts no liability or responsibility for denied boarding, financial loss, or disrupted travel plans resulting from the use of, or reliance on, the information provided in this article.
For more need-know information for your visit to the UK a must-read is our guide: An American In London - A Guide To Practical Matters