Finnair flights from London Heathrow Airport to Helsinki (LHR - HEL)
Cheapflights users flying from London to Helsinki on Finnair typically fly into Helsinki-Vantaa and depart from London Heathrow. Select your dates above for pricing.
Finnair flights from Heathrow to Helsinki in 2025
Find detailed information about Finnair flights from Heathrow to Helsinki. Explore the options provided by Finnair to plan your journey from Heathrow to Helsinki. Data last updated 26 April 2025.
Travel insights for Finnair flights from Heathrow to Helsinki
Get recent, data-driven insights about Finnair flights from Heathrow to Helsinki including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from London Heathrow Airport to Helsinki with Finnair?
Use this chart to determine the optimal time to book a return flight from Heathrow to Helsinki. Price data was last updated on 25 April 2025.
Booking with Finnair 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Helsinki. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London Heathrow Airport to Helsinki with Finnair?
Currently, the most affordable month to book a Finnair flight from London Heathrow Airport to Helsinki in September, with an average price of HK$1,109. Conversely, traveling with Finnair from London Heathrow Airport to Helsinki in December will be the most expensive, with an average cost of HK$1,753. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
Weekly Finnair flight availability from London Heathrow Airport to Helsinki
The most Finnair flights from LHR to HEL are scheduled on a Wednesday (7 on average). You will have fewer Finnair flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).
Rainfall in Helsinki by month
Plan your trip to Helsinki by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Helsinki ranges from 30.0 - 70.0 inches per month. August is typically the wettest month, when rainfall can reach 70.0 mm. February is typically the driest time to visit Helsinki when rainfall is around 30.0 mm.
Temperature in Helsinki by month
Plan your trip to Helsinki by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Helsinki, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).
Best time to book a flight from Heathrow to Helsinki
Have a flexible travel schedule? Discover the best time to fly to Helsinki from Heathrow with our price prediction graph.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Other Finnair flights from Heathrow
Browse through other Finnair flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 26 April 2025.
See what others are saying about Finnair
Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 26 April 2025.
Overview
Comfort
Crew
Entertainment
Boarding
Food