UK ETA vs ESTA: What US Citizens Need to Know in 2026

What is the difference between the UK ETA and the US ESTA? The UK ETA is the £20 (about $26–27) permission US citizens have needed to visit the UK since January 8, 2025; it is valid for 2 years and allows stays of up to 6 months per visit. The US ESTA is the American equivalent for Visa Waiver Program travelers such as British citizens, with stays of up to 90 days, and neither one replaces the other. While they serve similar purposes, there are important differences in cost, validity, application process, and coverage that every traveler should understand.

This guide provides a detailed comparison of the UK Electronic Travel Authorisation (ETA) and the US Electronic System for Travel Authorization (ESTA), helping you understand who needs which document, how to apply, and what to expect.

UK ETA vs ESTA: Quick Comparison Table

Who Needs a UK ETA?

The UK ETA is required for citizens of visa-exempt countries who want to visit the United Kingdom. This includes all US passport holders. You need an ETA for:

• Tourism and sightseeing visits
• Business meetings, conferences, and negotiations
• Transit through the UK to another destination (airside transit without an ETA is currently allowed only at Heathrow and Manchester, on a temporary basis)
• Short-term study courses (up to 6 months)
• Medical treatment
• Visiting family and friends

Apply for your UK ETA at gov.uk/eta. Read our complete UK ETA guide for US citizens for step-by-step instructions.

Who Needs a US ESTA?

The US ESTA is required for citizens of Visa Waiver Program (VWP) countries visiting the United States. This includes UK passport holders. The ESTA covers:

• Tourism and vacation travel
• Business meetings and conferences
• Transit through the United States
• Short visits of up to 90 days

Key Differences Between UK ETA and ESTA

The three biggest differences are cost (£20 for the UK ETA vs. about $40 for the ESTA), maximum stay (6 months vs. 90 days), and how you apply (app or website vs. CBP website only).

Cost Difference

The UK ETA is significantly cheaper at £20 (about $26.50) compared to the US ESTA at about $40. It is not the cheapest system worldwide, though: Canada’s eTA costs CAD 7, and the EU’s upcoming ETIAS will cost €20. If an ESTA application is denied, only the $10.27 processing portion of the fee is charged.

Maximum Stay Duration

This is one of the most significant differences. The UK ETA allows stays of up to 6 months per visit, while the US ESTA limits stays to 90 days. This means American travelers to the UK have much more flexibility for extended trips, long-term tourism, or extended business assignments.

Application Process

The UK ETA can be applied for through a dedicated smartphone app (available on iOS and Android) or through the government website. The app allows you to scan your passport and take a biometric photo using your phone. The US ESTA is only available through the CBP (Customs and Border Protection) website and does not require biometric data.

Processing Speed

Most UK ETA applicants get a decision within one working day, but it can take up to three working days, so apply at least three working days before you travel. The US ESTA aims for a decision within 72 hours.

Scope of Coverage

The UK ETA covers England, Scotland, Wales, and Northern Ireland. The US ESTA covers all 50 states, US territories, and transit through the US. Ireland has its own entry rules, but since April 2026 the same UK ETA also covers Jersey, Guernsey, and the Isle of Man.

Common Mistakes to Avoid

• Confusing the two systems: Having an ESTA does not allow you to enter the UK, and having an ETA does not allow you to enter the US
• Letting your authorization expire: Both expire after 2 years or when your passport expires, whichever comes first. Check validity before every trip.
• Applying on unofficial websites: Only use the official UK government site or app for ETA applications, and the official CBP site for ESTA applications. Third-party sites charge excessive fees.
• Forgetting family members: Every traveler, including children and infants, needs their own ETA or ESTA

Read our UK ETA mistakes to avoid and UK ETA guide for children for more details.

Do You Need Both an ETA and an ESTA?

If you are an American traveling to the UK, you only need a UK ETA. If you are a British citizen traveling to the US, you only need a US ESTA. However, if your trip involves both countries (for example, flying from the US to the UK and back), the American traveler needs a UK ETA, and the ESTA is not relevant since you are returning to your home country.

Frequently Asked Questions: UK ETA vs ESTA

Is the UK ETA the same as the US ESTA?

No. While both are electronic travel authorizations for visa-exempt travelers, they are separate systems run by different governments. The UK ETA is for travel to the United Kingdom, while the US ESTA is for travel to the United States. You cannot use one in place of the other.

Which is cheaper, the UK ETA or the US ESTA?

The UK ETA costs £20 (about $26–27), while the US ESTA costs about $40. The UK ETA is the cheaper option by roughly $14.

Can I stay longer in the UK with an ETA than in the US with an ESTA?

Yes. The UK ETA allows stays of up to 6 months per visit, while the US ESTA limits stays to 90 days. This is one of the biggest practical differences between the two systems.

Do children need their own UK ETA and US ESTA?

Yes. Every traveler regardless of age needs their own authorization. Parents can apply on behalf of children through the UK ETA app or website. See our UK ETA guide for children and family application guide.

How far in advance should I apply for a UK ETA?

Apply at least three working days before you travel, as GOV.UK recommends; most applicants get a decision within one working day, but it can take up to three working days. Since the ETA is valid for 2 years, consider applying well ahead of your trip. See our UK trip planning guide.

Practical UK travel preparation guide for US visitors

For American travelers heading to the United Kingdom, good planning pays off. New York has more nonstop flights to London than any other US city. JFK–Heathrow is the busiest route between North America and Europe, served by British Airways, Virgin Atlantic, American, Delta, and JetBlue. Flight times depend on where you start, and West Coast flights take several hours longer than East Coast ones. Based on KAYAK’s past-12-month data, round-trip economy fares from JFK to London typically run about $550–$890, averaging roughly $700–$735. Sub-$600 fares into Heathrow are usually sales. Last-minute fares average only about 10% more than booking well ahead, so expect $1,500+ mainly at peak times and around holidays. Premium economy typically costs about $400–$800 more round-trip than economy, though the gap varies by airline and travel dates and can top $1,000 at peak times.

U.S. citizens have needed a UK ETA since January 8, 2025 (applications opened November 27, 2024) for visits of up to 6 months, including transits that pass through UK border control; stays longer than 6 months require a visa instead. Apply on GOV.UK or in the official UK ETA app and pay £20 (about $26.50 in September 2026). You’ll usually get a decision within 1 working day, but it can take up to 3 working days. Your passport must be valid for your whole stay in the UK (the UK has no 3- or 6-month rule). The ETA is linked to that passport, so if you get a new passport, you’ll need a new ETA. Keep your approval email on your phone and print a copy as a backup.

For getting around London, the easiest option is tapping a contactless Visa or Mastercard (or your phone). Use a card with no foreign transaction fees, since other U.S. cards may add a fee to every ride. Note that some U.S.-issued Mastercard cards aren’t accepted. The Tube, buses, DLR, and many rail services in London take contactless with daily capping (£8.90 a day for Zones 1–2 in 2026), and you’ll skip the non-refundable £10.50 Oyster card fee. For longer journeys, Advance tickets booked ahead are often the best value, though prices change by date and train. Several companies run Britain’s trains (for example, Avanti West Coast, GWR, and LNER), so fares and booking options vary by route. You can book through the operators’ own websites or apps such as Trainline.

British culture and etiquette for American visitors

British politeness can feel different from American directness. People say “sorry,” “please,” and “thank you” constantly, often without any obvious reason. “How are you?” is usually a greeting, not a real question, so a simple “Fine, thanks, you?” works. British humor tends to be dry, ironic, and often self-deprecating. Tipping is optional and much lower than in the U.S.: restaurants often add a discretionary service charge (usually 12.5%, increasingly 15% in London), and if they don’t, 10–15% is standard. In pubs, you usually order at the bar and pay right away, and no tip is expected. Lines matter: cutting in front of someone is one of the worst social faux pas in the UK.

For American families visiting the UK, there’s no shortage of cultural experiences. In London, the British Museum, the National Gallery, and Tate Modern are free to visit, though some special exhibitions charge admission. Booking a free timed ticket in advance is recommended. Major paid attractions cost more: Tower of London admission is £37 per adult in 2026, so check current adult and child prices on the official site before you go. Buckingham Palace’s State Rooms open to visitors only in summer. The Warner Bros. Studio Tour London near Watford is hugely popular. Book both well ahead. For popular West End shows and peak performances, booking early is usually cheaper. For shows that aren’t selling as well, last-minute deals (day seats, lotteries, TKTS, or apps like TodayTix) can beat advance prices. Pub culture is central to British social life, and many traditional pubs serve food at both lunch and dinner.

FAQ for American UK travelers

How long does the UK ETA application take?

Most decisions arrive within 1 working day, but it can take up to 3 working days. Apply at least 3 working days before you travel, as GOV.UK recommends, and travel only once your ETA has been granted. Before you start, have ready the passport you’ll travel with, an email address, a credit or debit card (or Apple Pay or Google Pay), and a photo of your face.

What does UK ETA cost in 2026?

A UK ETA has cost £20 per person (about $26.50 in September 2026) since April 8, 2026. There are no extra fees if you apply directly on GOV.UK or in the official UK ETA app. Independent services charge their own fee on top of the £20 government fee for checking and support; none of them can get you a faster Home Office decision. You can pay by credit or debit card, Apple Pay, or Google Pay.

How does UK ETA differ from US ESTA?

The UK ETA and the U.S. ESTA are similar: both are electronic pre-screening for visa-free travel. A UK ETA costs £20, and an ESTA costs $40.27. Both are valid for 2 years or until your passport expires, whichever comes first, and both allow multiple trips with a limit on each stay: up to 6 months per visit to the UK and up to 90 days per visit under ESTA. You can apply for a UK ETA directly on GOV.UK or in the official UK ETA app.

How much should I budget for a week in UK?

For a week-long UK trip from the U.S., plan on roughly: a round-trip economy flight from JFK to London for $550–$890 (West Coast fares often run about $50–$100 more per person); a London hotel for $110–$160 a night at the budget level or $160–$300 mid-range; food and drink for about $40–$60 a day on a modest budget or $70–$100 mid-range; public transit for about $12–$14 a day in London, thanks to TfL’s daily caps; and attractions from $0 (many major museums are free) up to $40–$80 a day mid-range. Mid-range travelers typically spend around $200 per person per day, more in London. Add the one-time £20 UK ETA (about $26.50). Hostels, off-season dates, and cities outside London can bring costs down.

How many times can I travel with the same ETA?

UK ETA is a multiple-entry permission valid for 2 years (or until your passport expires, whichever comes first). You can travel in and out as often as you wish during the validity period, with up to 6 months stay per entry. This means you can use the same ETA for weekend trips, summer vacations, and business travel without applying again.

Do I need ETIAS too if visiting Europe after UK?

Yes. If you’ll also visit countries in Europe’s Schengen Area, you’ll need to follow the EU’s own entry systems too, including ETIAS once it launches. Check the official EU ETIAS website for the launch date and fee. A UK ETA covers travel to the United Kingdom (England, Scotland, Wales, and Northern Ireland), and since April 9, 2026, it also covers Jersey, Guernsey, and the Isle of Man. It isn’t valid for Ireland or any other European country. Ireland has its own entry rules, and neither authorization replaces the other.