An additional daily flight between Newcastle and Aberdeen is being introduced by Loganair.
The extra frequency from Monday will bring the total number of flights each week to 22.
Service between the two cities was suspended for two months in the early stages of the Covid-19 pandemic.
The Scottish regional carrier became one of the first airlines to resume a limited schedule from Newcastle on June 1.
Operated on the airline’s Embraer 135/145 regional jets, Loganair will run two flights to Aberdeen every weekday and one on Sundays.
Newcastle airport announced a ten point plan of Covid safety measures ahead of passengers returning in June.
Loganair chief commercial officer Kay Ryan said: “I’m delighted that we are in the position to increase our flights to Aberdeen from 14 September.
“We’ve been operating this route from June in order to ensure essential workers in the oil and gas industry have been able to get to work.
“This step up in our frequency reflects increased customer demand not only on our Aberdeen route, but also on Southampton, Stavanger and Exeter.”
Newcastle airport chief operating officer Richard Knight added: “The connection between Newcastle and Aberdeen is vital for the region’s economy and many businesses who operate in the offshore sector.
“Aviation as an industry is facing significant challenges at the moment so it is excellent to see Loganair expanding their schedule such a short time after resuming their flights from the region.
“The airline has a number of robust safety measures in place, and along with our own ten point plan we hope this will give passengers confidence that they will be safe when travelling.”