Return fares start from £153, and BA highlighted that customers can bring ski or snowboard equipment as part of their checked luggage as long as the suitcase measures within 190 x 75 x 65cm.
SAS will also launch seasonal flights between Heathrow and Tromso from November 2, and IAG airline Iberia will begin a Madrid-Tromso flight this winter.
Existing seasonal services from the UK include Norwegian from Gatwick and Wizz Air from Luton.
Commenting on the news, Neil Chernoff, director of planning and strategy at British Airways, said:
“Those who missed the Northern Lights in the UK need not worry! We are excited to welcome Tromso to our route network – it is a growing winter leisure market thanks to its abundance of cold weather activities and we will be the only premium airline to operate there from the UK.
“We've optimized the schedule for three- and four-night trips, which we know are perfect for a destination like this.”
Other recent British Airways route news includes the resumption of flights to Bangkok and Kuala Lumpur in October and November respectively, and the return of the Heathrow-Jeddah service also from November.
British Airways to resume Heathrow-Jeddah route
ba.com
