TUI AG (LON:TUI), easyJet PLC (LON:EZJ) and Wizz Air Holdings PLC (LON:WIZZ) were on the rise on Wednesday after the UK unveiled more details on international travel measures this summer.
Transport Secretary Grant Shapps confirmed that the NHS app will be used as a COVID-19 passport to show whether travellers have had a vaccine or tested negative before leaving the country.
READ: Airlines and tour operators given EU travel boost
"It will be the NHS app that is used for people when they book appointments with the NHS and so on, to be able to show you've had a vaccine or that you've had testing," he told Sky News.
"I'm working internationally with partners across the world to make sure that system can be internationally recognised."
The app will not be the NHS COVID app, which is currently used at restaurants and pubs to help with contact-tracing, but the one used to book general appointments.
"We still need to be very cautious."
Transport Secretary @grantshapps says the UK government wants to ease restrictions on international travel "very carefully" as "beyond our shores we're seeing the highest levels of COVID we have seen so far".
— Sky News (@SkyNews) April 28, 2021
Shapps also said that “in the next couple of weeks” Britons will hear more on what countries will be deemed ‘green’ so people can book summer holidays.
The government’s travel plans involve a traffic light system of red, amber and green classifications for countries depending on the perceived COVID-19 risk.
The 'green' category means that travellers are not required to quarantine although tests will remain mandatory.
TUI rose 3% to 445.6p, easyJet added 2% to 1,044.28p while Wizz Air was up 1% to 4,856p on Wednesday late morning.