Services to Dundee, Kirkwall, Sumburgh, and City of Derry Airport began two years ago, linking Heathrow and remote communities across the country.
Additionally, this month marks three years since the carrier launched services between the UK’s capital and the Isle of Man.
Loganair surprised 300,000th customer, Leigh Flynn, from Dundee, with complimentary return tickets to mark the occasion.
She regularly travels between Dundee and Heathrow for work, typically travelling to Reading every quarter since Loganair launched its Heathrow services in May 2023.
Leigh said: “The service between Dundee and Heathrow is always efficient, and the experience both at the airport and onboard is excellent.
Luke Lovegrove, chief commercial officer at Loganair, said: “This milestone is a real testament to the importance of regional connectivity and the role our routes to Heathrow play.”
Loganair’s partnerships facilitate onward connections through Heathrow to over 90 global destinations.
These codeshare and interline partnerships with major airlines include British Airways, Emirates, and Qatar Airways.