Title: CA $433 Cheap Finnair fights from London to Tromsø - Expedia.ca ![](https://images.trvl-media.com/place/3512/83d20fa3-cacc-4fad-9a51-afdf8ccb8b7d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3512/83d20fa3-cacc-4fad-9a51-afdf8ccb8b7d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $433 Cheap Finnair fights from London (LHR) to Tromsø (TOS) [View CA $433 flight on Wed, Feb 4, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:LHR,to:TOS,departure:04/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:432.60&airProductToken=AQptCjUIwbIBEgQxMzQwGOuJASCHWSjinoQDMIyghAM4WkAAWAFqCEVDTEFTU0lDcghaTk4wUzlDWgo0CMGyARIDNTQxGIdZINOTASj2qIQDMNKqhAM4WkABWAFqCEVDTEFTU0lDcghaTk4wUzlDWhIKCAEQARgBKgJBWRgBIgQIARABKAIoAygEMAE) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Finnair flights from London to Tromsø (LHR→TOS) Prices were available within the past 7 days and start at CA $433 for one-way flights and CA $828 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Finnair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AY.gif) Wed, Feb 4 - Tue, Feb 10 LHR London TOS Tromsø CA $828 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:TOS,departure:04/02/2026TANYT&leg2=from:TOS,to:LHR,departure:10/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:827.30&airProductToken=AQptCjUIwbIBEgQxMzQwGOuJASCHWSjinoQDMIyghAM4WkAAWAFqCEVDTEFTU0lDcghaTk4wUzlDWgo0CMGyARIDNTQxGIdZINOTASj2qIQDMNKqhAM4WkABWAFqCEVDTEFTU0lDcghaTk4wUzlDWgptCjQIwbIBEgM5NDYY05MBIIdZKInnhAMw9-eEAzhaQABYAWoIRUNMQVNTSUNyCFpOTjBTOUNaCjUIwbIBEgQxMzMxGIdZIOuJASje7IQDMKbuhAM4WkABWAFqCEVDTEFTU0lDcghaTk4wUzlDWhIKCAEQARgBKgJBWRgBIgQIARABKAIoAygEMAE) Flight from London to Tromsø (LHR - TOS) route information | Origin airport | Heathrow | | --- | --- | | Destination airport | Langnes | | Airlines serving | Finnair, Lufthansa, Scandinavian Airlines, Swiss International Air Lines | | Popular airline | Scandinavian Airlines | | Distance | 2247 km | ## Frequently asked questions ### How much is a Finnair flight from Heathrow Airport (LHR) to Langnes Airport (TOS)? > Set the "Price (lowest to highest)" filter on Expedia to search for cheap Finnair return flights from CA $828 from LHR to TOS. Affordable one-way fares from CA $433 are available as well.\**\*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.* ### What is the cheapest month to fly from LHR to TOS with Finnair? > Look for return or one-way flights to Tromsø in May or April. You could find lower fares with Finnair during these off-peak months. ### Does Finnair fly nonstop from Heathrow Airport (LHR) to Langnes Airport (TOS)? > Use our "Nonstop" filter when looking for direct Finnair flights from LHR to TOS. You can also compare other carriers servicing the same direct trip. ### What airports does Finnair fly into in Tromsø? > Finnair flights from Heathrow Airport (LHR) to Tromsø land at Langnes Airport (TOS). This is the main gateway to this destination. ### What kind of luggage can I take on a Finnair flight from Heathrow Airport (LHR) to Langnes Airport (TOS)? > Finnair lets passengers bring 1 checked-in bag weighing up to 23 kgs (50 lbs) with dimensions not exceeding 157 centimetres on standard economy flights from LHR to TOS. You can also bring 1 cabin bag with you in the cabin. This hand luggage must not exceed 23 centimetres x 38 centimetres x 38 centimetres and weigh no more than 10 kgs (22 lbs). Baggage allowances can differ based on the fare type and cabin class, so double-check your booking or Finnair's website to avoid additional costs at the airport. ### Can I change or cancel my Finnair flight from Heathrow Airport (LHR) to Langnes Airport (TOS)? > Depending on your fare type, a fee is typically charged if you change or cancel your booking more than 24 hours after it's been confirmed. To find plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when searching for flights. 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