Cheap flights from London Heathrow to Helsinki

Q: How much are flights normally?

£ 142. If you see flights from London Heathrow to Helsinki for less than this, you've found a good deal.

Q: When is the best time to book cheap flights?

15 weeks. If you want cheap flights from London Heathrow to Helsinki, this is the best time to book.

Q: What are the cheapest airlines?

Air France, Finnair. These airlines usually offer the cheapest flights from London Heathrow to Helsinki.

Q: Can I fly direct to Helsinki?

Finnair, British Airways. You can fly non-stop from London Heathrow to Helsinki with these airlines.

Q: What airlines fly indirectly?

Air France. These airlines fly from London Heathrow to Helsinki, but you’ll have at least one layover.

Q: When is high season?

July. This is the most expensive time to fly to Helsinki. If this is when you want to go, book your flight from London Heathrow in advance.

Q: When is the cheapest time to fly?

November. Flights from London Heathrow to Helsinki are usually cheaper at this time of year.

Q: How long is the flight?

2 hrs 50 mins. This is the shortest flight time from London Heathrow to Helsinki.

Q: How long should I stay in Helsinki?

4 days. Most people spend this amount of time in Helsinki.

from as little as £294

5 nights in Helsinki, departing London Heathrow on 11 / May / 2025 with Finnair (price found 82 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from London Heathrow to Helsinki

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The London Heathrow / Helsinki route

All 1849 km of it

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Helsinki flight facts

What you need to know

How much are flights normally?

£ 142

If you see flights from London Heathrow to Helsinki for less than this, you've found a good deal.

When is the best time to book cheap flights?

15 weeks

If you want cheap flights from London Heathrow to Helsinki, this is the best time to book.

What are the cheapest airlines?

Air France
Finnair

These airlines usually offer the cheapest flights from London Heathrow to Helsinki.

Can I fly direct to Helsinki?

Finnair
British Airways

You can fly non-stop from London Heathrow to Helsinki with these airlines.

What airlines fly indirectly?

Air France

These airlines fly from London Heathrow to Helsinki, but you’ll have at least one layover.

When is high season?

July

This is the most expensive time to fly to Helsinki. If this is when you want to go, book your flight from London Heathrow in advance.

When is the cheapest time to fly?

November

Flights from London Heathrow to Helsinki are usually cheaper at this time of year.

How long is the flight?

2 hrs 50 mins

This is the shortest flight time from London Heathrow to Helsinki.

How long should I stay in Helsinki?

4 days

Most people spend this amount of time in Helsinki.

Alternative flights from the UK to Helsinki

Check out prices for other routes

London to Helsinki

from £173 pp

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Manchester to Helsinki

from £248 pp

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Edinburgh to Helsinki

from £281 pp

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Birmingham to Helsinki

from £467 pp

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London City Airport to Helsinki

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London Gatwick to Helsinki

from £173 pp

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London Luton to Helsinki

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London Stansted to Helsinki

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Alternative flights from London Heathrow

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11 / May / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Helsinki route. There are around 478 flights on any given week from the UK to Helsinki and the cheapest month to fly right now is May.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)

LOWEST

-9 °C

AVG

4 °C

HIGHEST

21 °C

Rainfall (mm)

LOWEST

35 mm

AVG

53.2 mm

HIGHEST

75 mm

Key facts about Helsinki

Currency

Euro

Language

Finnish

Swedish

Timezone

2 hrs ahead of GMT

How to get cheap flights from London Heathrow to Helsinki

Tips and advice from our flight experts

We've gone through lots of different flights, to help you find the cheapest way to get from London Heathrow to Helsinki. You can choose from three airlines. At the moment, 11 / May / 2025 is the cheapest date to travel, but scroll through the results to find the option that works best for you.

The most popular airlines offering flights to Helsinki are Finnair, British Airways & Air France. Finnair is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?

Generally speaking, the flight from London Heathrow to Helsinki takes around 3 hrs 45 mins. The fastest flight takes 2 hrs 50 mins to cover the 1849 km distance. You can view all flight times yourself in the results list.

The cheapest month to fly to Helsinki is November, while July is when the prices of flights, hotels and car hire will be at their highest. If you need somewhere to stay for your trip to Finland, take a look at our accommodation options.