Cheap flights from London to Helsinki from £29

The cheapest month to fly to Helsinki from London is in February. Flight prices, which tend to average around £58, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Helsinki, with average flight prices from London averaging around £69.

The cheapest day to depart from London to Helsinki is on a Monday. Travellers who choose to depart for Helsinki on a Monday will often find tickets for as low as £284. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Helsinki on Sunday is £521.

According to our data, the cheapest time of day to fly to Helsinki is in the morning. momondo users have found flights departing from London to Helsinki in the morning for as low as £290. 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 at midday, with an average ticket price of £575. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Stansted 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 £214 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 £175 on momondo.

There are 3 cabin classes available to choose from on London to Helsinki-Vantaa 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 to Helsinki.

As of February 2026, prices for London to Helsinki flights are approximately 13% cheaper when compared to flights at the same time last year.

Ryanair, Norwegian, and Scandinavian Airlines are the most popular carriers operating from London to Helsinki-Vantaa

Finnair, Scandinavian Airlines and Ryanair are the top three most popular airlines that fly to Helsinki from London according to our data. Finnair is the first choice among our users, with 57% of people opting to fly with this airline when travelling to Helsinki. Keep in mind that there are 10 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.

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 105 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 11% of their flights experiencing any sort of delay.

Stockholm (ARN) was the most common stop: 61% of momondo users choosing one-stop flights on this route connected there.

Flights via Riga (RIX) offer the lowest average return price of £167.

Flights connecting via Riga (RIX) have the shortest average one-way travel time: 4h 55m.

Riga (RIX) has the shortest average stopover time for this route: 1h 11m.

As of February 2026, there are 27 flights per day flying from London to Helsinki. The most common time of day flights depart is 10:00, with 57% of flights taking off at midday.

194 flights are operational weekly from London to Helsinki as of February 2026. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.