Cheap flights from London to Helsinki from $138

The month of February is, on average, the cheapest month to fly to Helsinki from London, with most prices found around $108. If you are unable to visit Helsinki during the month of February, then departing from London during the month January is also very affordable. Most momondo users find prices during this month for around $132.

The cheapest day to depart on your flight to Helsinki is on a Wednesday when prices can be found for as low as $353. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Helsinki is Saturday, with ticket prices averaging around $1,833.

The cheapest time of day to fly to Helsinki is in the morning when flights can be purchased for as low as $390. In contrast, the most expensive time of day to depart to Helsinki is in the afternoon when prices are around $535.

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 $437 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 $364 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 April 2026, prices for London to Helsinki flights are approximately 18% 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 106 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. Wednesday 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 12% of their flights experiencing any sort of delay.

The number of flights available between London and Helsinki is 20 per day as of April 2026. The most frequent departure time is 10:00, with 52% of daily flights leaving at midday.

As of April 2026, there are 146 flights per week flying from London to Helsinki. The most common day of the week flights depart is Mon, with 21% of flights taking off on this day.