Budget airline EasyJet plans flights to summer holiday destinations as it prepares for return to the air
That means around 500 routes should be re-opened by the end of July.
It is hoped that will increase to 75 per cent of destinations being available once again during August.
The company says it hopes travellers will be able to get away to popular holiday destinations across the continent this summer.
Flights will be at a lower frequency than normal, meaning the airline will operate at around 30 per cent of its normal capacity between July and September.
The low-cost carrier will serve all its UK bases in the key family summer holiday months of July and August.
EasyJet previously announced it will resume operations on June 15, but flights will mainly be restricted to domestic routes in the UK and France.
A series of new safety measures will be introduced by the airline, including requiring passengers to wear face masks at airports and on aircraft.
It has produced thousands of face mask covers inspired by comic books to be handed to children flying on selected routes in a bid to ease their anxiety about the new rule.
Other steps to boost hygiene include not selling food during flights, enhanced cleaning of planes, and disinfection wipes and hand sanitiser being provided.
Passengers will be invited to sit away from people not in their party on flights with empty seats.
EasyJet's chief commercial and planning officer Robert Carey said: "We are delighted to announce that we will be flying the majority of our route network across Europe, meaning customers can still get to their chosen destination for their summer holidays this year.
"We're passionate about helping our customers get back flying, which is why we're offering one million seats at £29.99 for those planning on booking a holiday this summer.
"Travel restrictions are being lifted and demand is starting to return, so there's no better time for us to introduce this sale."