When flying from Belfast City Airport to Tromsø, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
If you book a flight to Tromsø from Belfast City, you will be flying to Tromso/Langnes, which is the city’s only airport. Tromso/Langnes (TOS) is located 2.5 mi from the center of Tromsø. There are 0 flights from Belfast City to Tromso/Langnes per day from 0 different airlines.