The preliminary list of 90 eligible countries that will require an ETA before travel:

• Europe: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland
• Americas: Argentina, Bahamas, Barbados, Belize, Brazil, Canada, Chile, Colombia, Costa Rica, Guatemala, Mexico, Nicaragua, Panama, Peru, United States, Uruguay
• Asia and Middle East: Bahrain, Hong Kong, Israel, Japan, Kuwait, Macau, Malaysia, Maldives, Oman, Qatar, Saudi Arabia, Singapore, South Korea, Taiwan, United Arab Emirates
• Pacific and Oceania: Australia, Fiji, Kiribati, Marshall Islands, Micronesia, Monaco, Nauru, New Zealand, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu
• Other: Andorra, Antigua and Barbuda, Botswana, Brunei, Grenada, Guyana, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, San Marino, Seychelles, Trinidad and Tobago, Vatican City

 

Currently, only citizens of Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates (UAE) are required to have an ETA to visit the UK.