Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast City Airport to Stornoway as you normally would.
For a flight from Belfast City to Stornoway, you will be flying into Stornoway. Stornoway (SYY) is just 2.1 mi from the center of the city. Stornoway is the only Stornoway airport and it handles 0 inbound flights from Belfast City per day. 0 airlines have flights to Stornoway from Belfast City on a regular basis.