Ryanair says it expects people from the Republic to use flights from Northern Ireland to go on holiday this summer.
It comes as the European Parliament debates plans for a digital green certificate to allow the safe return of travel. With more than half of adults in the UK now having had their first dose of a Covid vaccine, attention's turned to when foreign holidays might be allowed.
Ryanair's launching new routes to some European destinations - including 8 from Belfast - starting in May. And the airline's boss Michael O'Leary thinks people in the Republic might take advantage.
Travel abroad from the Republic still looks some way off - despite EU efforts to develop digital green certificates. They'll prove someone's either been vaccinated, recently tested negative or have some post-infection immunity.
Paul Hackett, CEO of Click and Go, says it's likely to be a few months before they come into play. The EU envisages the certs to be used for international travel until the pandemic ends.
