Cheap flights from London Heathrow Airport to Helsinki from £78

The cheapest month to fly to Helsinki from London Heathrow Airport is in October. Flight prices, which tend to average around £182, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Helsinki, with average flight prices from London Heathrow Airport averaging around £197.

The cheapest day to depart from London Heathrow Airport to Helsinki is on a Tuesday. Travellers who choose to depart for Helsinki on a Tuesday will often find tickets for as low as £231. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Helsinki on Wednesday is £402.

According to our data, the cheapest time of day to fly to Helsinki is at midday. momondo users have found flights departing from London Heathrow Airport to Helsinki at midday for as low as £221. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Helsinki are more costly in the afternoon, with an average ticket price of £437. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Helsinki from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around £252 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 Heathrow Airport for as low as £199 on momondo.

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

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Helsinki.

As of September 2026, prices for London Heathrow Airport to Helsinki flights are approximately 6% more expensive when compared to flights at the same time last year.

Finnair, Scandinavian Airlines, and KLM are the most popular carriers operating from London Heathrow to Helsinki-Vantaa

Finnair, Scandinavian Airlines and Lufthansa are the top three most popular airlines that fly to Helsinki from London Heathrow Airport according to our data. Finnair is the first choice among our users, with 69% of people opting to fly with this airline when travelling to Helsinki. Keep in mind that there are 6 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% 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 112 minutes.

Generally, flights departing in the morning 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, Finnair have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

Stockholm (ARN) was the most common stop: 60% of momondo users choosing one-stop flights on this route connected there.

Flights via Stockholm (ARN) offer the lowest average return price of £184.

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 5h 16m.

Amsterdam (AMS) has the shortest average stopover time for this route: 1h 48m.

As of September 2026, there are 25 flights per day flying from London Heathrow Airport to Helsinki. The most common time of day flights depart is 10:00, with 50% of flights taking off at midday.

As of September 2026, there are 177 flights per week flying from London Heathrow Airport to Helsinki. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.