If you’re planning a trip to London, Edinburgh, or anywhere in the United Kingdom after February 25, 2026, there’s a critical new requirement you need to know about—and it applies to ALL U.S. travelers.
What’s Changing?
Traveling to the UK after Feb 25, 2026? U.S. travelers need a UK ETA—even for transit. Apply early.
Starting February 25, the UK is implementing mandatory Electronic Travel Authorization (ETA) for visitors from 85 countries, including the United States, Canada, and France. This isn’t optional—without an ETA, you won’t be allowed to enter the country, even if you’re just transiting through a UK airport with a connecting flight.
Why This Matters to You
Think of the ETA as the UK’s version of what international travelers complete when visiting the U.S. It’s a digital screening system that streamlines immigration while enhancing security. The program has already processed over 13.3 million applications since its soft launch in October 2023, and enforcement becomes mandatory in just six weeks.
The Quick Facts You Need
Cost: £16 (approximately $20 USD)
Validity: 2 years or until your passport expires
Processing Time: Usually within 24 hours, but allow 3 business days
Application Method: UK ETA app or https://www.gov.uk/eta/apply
You’ll need your passport, email address, payment method, and a photo. Once approved, you’ll receive a 16-digit reference number linked to your passport—no paper documents to carry.
What Many Travelers Don’t Realize
The ETA is required even if you’re connecting through Heathrow or Gatwick to another destination and passing through UK border control. Check with your airline if you’re unsure whether your layover requires one.
Also important: Each traveler needs their own ETA, including children and infants traveling with you.
My Professional Recommendation
Don’t wait until the last minute. While most applications are approved automatically within minutes, some require additional review. Apply at least a week before your departure to avoid any travel disruptions.
Airlines will be checking for valid ETAs before allowing passengers to board flights to the UK starting February 25. Being denied boarding due to a missing ETA would be an expensive and frustrating way to start—or cancel—your trip.
Who’s Exempt?
British and Irish citizens (including dual citizens), those with UK visas, and travelers with UK residence permissions don’t need an ETA. However, if you’re a dual British citizen, make absolutely certain you have valid documentation proving your citizenship to avoid boarding issues.
The Bottom Line
This is a straightforward process that takes about 10 minutes to complete, but it’s essential for UK travel going forward. The digitization of border control is the future of international travel, and the UK is joining countries like the U.S., Canada, and Australia in implementing pre-travel authorization systems.
Planning a UK business trip or holiday? Factor in the ETA application when booking. It’s one small step that ensures smooth sailing through immigration.
Have questions about navigating new travel requirements? That’s exactly what travel professionals are here for.