The crew will also be required to wear masks on board.
easyJet chief executive Johan Lundgren said that “these are small and carefully planned steps”.
The airline says that it is working in line with relevant medical guidance set out by experts.
“We are following the guidance set out by the WHO, the International Civil Aviation Organisation (ICAO) which is also recognised by civil aviation authorities and national governments, as well as the European Aviation Safety Agency, the European Centre for Disease Control and Prevention and Public Health England,” easyJet’s website continues.
easyJet adds: “Social distancing will be practised in airports and during boarding. Guidelines set down by the regulators do not recommend social distancing onboard due to the practicalities of commercial air travel.
“There are a number of other measures in place to protect customers and crew onboard.”
Inflight service is also set to see some changes when flights resume, including the removal of the foodservice.
Mr Lundgren said: “These measures will remain in place for as long as is needed to ensure customers and crew are able to fly safely as the world continues to recover from the impact of the coronavirus pandemic.”
The airline has announced initial domestic routes throughout the UK from June, with just one international route to Nice, France from London Gatwick.
Mr Lundgren said: “I am really pleased that we will be returning to some flying in the middle of June.
“These are small and carefully planned steps that we are taking to resume operations.
“We will continue to closely monitor the situation across Europe so that when more restrictions are lifted the schedule will continue to build over time to match demand while also ensuring we are operating efficiently and on routes that our customers want to fly.”
A list of routes on offer from June include:
• Belfast to Birmingham
• Belfast to Bristol
• Belfast to Edinburgh
• Belfast to Glasgow
• Belfast to London Gatwick
• Belfast to Liverpool
• Belfast to Newcastle
• Birmingham to Belfast
• Bristol to Belfast
• Edinburgh to Belfast
• Edinburgh to London Gatwick
• Glasgow to Belfast
• Glasgow to London Gatwick
• Inverness to London Gatwick
• Isle of Man to London Gatwick
• Isle of Man to Liverpool
• London Gatwick to Belfast
• London Gatwick to Edinburgh
• London Gatwick to Glasgow
• London Gatwick to Inverness
• London Gatwick to Isle of Man
• London Gatwick to Nice
• Liverpool to Belfast
• Liverpool to Isle of Man
• Newcastle to Belfast