British Airways will boost domestic flights in its winter 2012/13 schedule following parent company IAG's acquisition of BMI.
Capacity on routes to Scotland will increase by 32% against the 2011 winter schedule, with an additional 27,000 seats per week available from London through a mixture of larger aircraft, higher frequencies and new routes.
Two extra flights per day will be added to the Heathrow-Edinburgh link - bringing frequencies to 12 per day - while the number of Heathrow-Aberdeen flights will also rise by two to eight.
BA will further launch a new thrice daily connection between London City airport and Aberdeen airport on 24 September.
BMI's six daily flights between Heathrow and Belfast have already been absorbed by the flag carrier, and will benefit from an additional daily connection over the winter schedule.
In England, Leeds Bradford airport will gain a new four times daily link with Heathrow as of 9 December, while the number of flights between Heathrow and Manchester will increase by one to 11 per day.
BA chief executive Keith Williams says the integration of BMI "is really enabling us to grow our network as we promised".
IAG completed its takeover of BMI in April and is now absorbing the mainline unit into BA - a process which will take up to nine months. Williams said in May that he expects the acquisition to generate annual earnings of €100 million ($125 million) by 2015.