Heathrow Terminal 4 will open for the first time in over two years on 14 June.
Qatar Airways will be the first to move, followed by around 30 airlines over the following month.
Heathrow said it has ‘taken the opportunity to refurbish many parts of Terminal 4, including upgrading toilets, air conditioning and hold baggage screening machines’ during the past two years.
It adds: “A wide range of retail, food and beverage outlets will be available, and more will open over the summer as airline occupancy increases.
“Overall, our ramp up plan is on track, though it is not always easy to balance supply and demand during this intense recovery phase.
“We are recruiting up to 1,000 new security officers and other colleagues and supporting airlines and handlers in their recruitment programmes. We have increased our customer service team to help manage queues in check in, make sure passengers are ready for security and make sure people can catch their flights.”
CEO John Holland-Kaye said: “While we are still years away from passenger numbers returning to pre-pandemic levels, reopening Terminal 4 will give airlines at Heathrow extra space across the airport, helping them manage the impact additional travel documents continue to have on check in times.”