Cheap flights from London to Helsinki from €129

The month of January is, on average, the cheapest month to fly to Helsinki from London, with most prices found around €83. If you are unable to visit Helsinki during the month of January, then departing from London during the month February is also very affordable. Most momondo users find prices during this month for around €99.

Fly from London Heathrow to Helsinki-Vantaa for the best London - Helsinki-Vantaa flight prices

You are more likely to see cheaper flights to Helsinki from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around €283 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from London for as low as €233 on momondo.

There are 3 cabin classes available to choose from on London to Helsinki flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 35% on your flight if you consider stops on a London to Helsinki flight.

As of August 2026, prices for London to Helsinki flights are approximately 33% cheaper when compared to flights at the same time last year.

Historically, on average around 19% of flights between London and Helsinki have experienced a delay on any given week. The average delay length over the past 12 months has been 111 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Ryanair have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.