British Airways owner IAG is SLOTXO ramping up its flight schedules as global air travel restrictions ease.
IAG said it would operate at about 45% of passenger capacity between July and September on pre-Covid levels, possibly rising to 75% by the end of 2021.
It comes as the company, which also owns Aer Lingus and Iberia, revealed a loss of more than €2bn (£1.7bn) in the six months to the end of June.
But IAG said it was not currently considering further redundancies.
The airline group has been hit hard by the coronavirus collapse in travel, with revenues and profits plunging after operators were forced to ground aircraft.
Chief executive Luis Gallego said on Friday the company had the "flexibility to capitalise" in areas where demand has increased due to travel restrictions easing.
However, the company warned that its plans to increase flight numbers "remain uncertain and subject to ongoing review".
Important step'
Mr Gallego said: "We know that recovery will be uneven, but we're ready to take advantage of a surge in air travel demand in line with increasing vaccination rates."
He welcomed the UK's decision that fully-vaccinated travellers from amber-list countries in the EU and US would no longer be required to quarantine when arrived home.
The rule change will come into force at 04:00 BST on Monday.
"We see this as an important first step in fully reopening the transatlantic travel corridor," he said.
'Our plan is to fly'
Mr Gallego said British Airways saw a 95% increase in the number of bookings for flights from the US to the UK shortly after Wednesday's announcement on easing travel rules, compared with the same period last week.
Asked if the planned ending of the furlough in September could lead to more UK job losses, he replied: "What we would like is to have an extension of the furlough scheme until the end of the year."
He added: "Right now, we are not considering to reduce jobs more, but for sure we need to see the evolution of the situation.