Flybe is starting flights from Heathrow to Scotland for the first time next year.
The regional airline will offer more than 40 flights a week from Aberdeen and Edinburgh to Heathrow.
Flybe will offer up to 18 flights a day between London and Edinburgh, and 10 between London and Aberdeen, from March 26.
Flybe will operate the slots which became available following the acquisition of BMI by IAG.
Flybe is not required to pay to use the slots, other than meet Heathrow landing and passenger charges. The slots will not be purchased by Flybe and will therefore not be brought onto the balance sheet.
Flybe will operate the flights out of Heathrow Terminal 2.
Flybe’s Executive Chairman, Simon Laffin, said: “The new routes to Heathrow complement the existing ones we operate to London City, and will benefit our business customers and customers in Scotland who want to connect with our long haul codeshare partners.”