iDiscover the best prices by selecting your travel dates.
Air Baltic
BT 652
→ Outbound · 27 Sep
LGW
London Gatwick
HEL
Helsinki
9:40 AM
27 Sep
20h 40m
8:20 AM
28 Sep
← Return · 7 Oct
HEL
Helsinki
LGW
London Gatwick
3:40 PM
7 Oct
26h 50m
4:30 PM
8 Oct
from
£207
Return · per adult
Norwegian Air International
D8 2769
→ Outbound · 8 Nov
LGW
London Gatwick
HEL
Helsinki
6:35 PM
8 Nov
3h 00m
Direct
11:35 PM
8 Nov
← Return · 18 Nov
HEL
Helsinki
LGW
London Gatwick
7:50 PM
18 Nov
22h 30m
4:20 PM
19 Nov
from
£161
Return · per adult
SAS Scandinavian Airlines
SK 532
→ Outbound · 20 Dec
LHR
London Heathrow
HEL
Helsinki
1:55 PM
20 Dec
7h 55m
11:50 PM
20 Dec
← Return · 30 Dec
HEL
Helsinki
LHR
London Heathrow
9:00 PM
30 Dec
13h 55m
8:55 AM
31 Dec
from
£222
Return · per adult
British Airways
BA 6080
→ Outbound · 31 Jan
LHR
London Heathrow
HEL
Helsinki
4:15 PM
31 Jan
2h 55m
Direct
9:10 PM
31 Jan
← Return · 10 Feb
HEL
Helsinki
LHR
London Heathrow
7:35 PM
10 Feb
3h 05m
Direct
8:40 PM
10 Feb
from
£327
Return · per adult
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Popular airlines to Helsinki
Top 5 airlines flying from London to Helsinki
Cheapest and average return economy fares by carrier, from our sampled live searches. Fares change constantly — tap Search to see live prices for your dates.
| Airline | Cheapest | Average | Flights | Search |
|---|---|---|---|---|
| Norwegian Air International | £122 | £188 | Direct available | |
| Air Baltic | £183 | £239 | With stops | |
| SAS Scandinavian Airlines | £222 | £341 | With stops | |
| British Airways | £291 | £291 | Direct available | |
 Pegasus Airlines | £531 | £544 | With stops |
Everything you should know
Cheapest direct flight
£122
Typical: £161–£202
Norwegian Air International
Direct · London → Helsinki
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We hope you love your trip to Helsinki!
Insights & trends for London to Helsinki flights
Data-powered insights to help you find the cheapest flights, the best time to fly and much more.
How much is a return flight from London to Helsinki?
Return flights from London to Helsinki typically cost between £161 and £202 in August, though fares move with demand, season and how early you book. The lowest fare our search found recently was £122 — a great price and well below the usual range, so a price near this is worth grabbing. Keeping your dates flexible and comparing nearby days is the easiest way to land at the cheaper end.
What is the cheapest day to fly to Helsinki?
The cheapest day to depart to Helsinki is usually Thursday, when fares start from around £156 — midweek departures tend to be quieter and cheaper. Sunday is typically the most expensive day to fly out (around £210), as weekend travel is popular with leisure and business travellers alike. Where your plans allow, moving your outbound to a cheaper weekday can noticeably lower the total fare.
What is the cheapest time of day to fly to Helsinki?
Flights to Helsinki are generally cheapest departing in the morning, with fares from around £122. Departures in midday tend to cost more (about £148), as those slots are more convenient and in higher demand. Picking an off-peak departure time is a simple way to trim the price without changing your dates.
What is the cheapest London airport to fly to Helsinki from?
The cheapest return flights to Helsinki depart from London Gatwick (LGW), from around £184. London has several airports serving this route and fares can vary between them — Stansted (STN) is often the priciest at around £531. It's worth checking which London airport is both cheapest and most convenient for you before booking.
Can I save money by flying with a stopover to Helsinki?
For Helsinki, prices are generally cheapest when you fly direct, with fares from around £122 versus about £148 for a 1-stop itinerary. A direct flight also saves you time and the hassle of a connection, so it's usually the better all-round choice on this route. Stopovers only tend to pay off here if a particular date or airline happens to be cheaper.
Average return fare to Helsinki by month
The cheapest month to fly from London to Helsinki is typically January, with return economy fares from £122. Fares are usually highest in July (around £291). Figures are indicative, from sampled live fares, and change with demand.
Cheapest sampled return economy fare, London to Helsinki, per month (gaps estimated). Search live for exact prices.
When to book flights from London to Helsinki
Are your dates flexible? These are the ideal times to fly to Helsinki based on our flight data — find the cheapest days for a 7-day trip.
Cheap flights to Helsinki from across the UK
You don't have to fly from London. The cheapest UK departure for Helsinki is currently London from £190. Compare return economy fares and typical flight times below — figures are indicative from sampled fares.
Indicative cheapest return economy fares by UK origin. Pick your dates in the search form above.
Weather in Helsinki
Monday
Rain
18°C
31/08/2026
Tuesday
Overcast
20°C
01/09/2026
Wednesday
Overcast
20°C
02/09/2026
Thursday
Drizzle
18°C
03/09/2026
Friday
Drizzle
17°C
04/09/2026
Saturday
Drizzle
16°C
05/09/2026
Sunday
Drizzle
16°C
06/09/2026
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Our travel experts
Sarah Thompson
Expert on British Airways
Sarah Thompson specialises in British Airways travel, helping customers choose the right routes, schedules, and flight options. With a focus on smooth and stress-free journeys, she makes planning international travel simple and convenient.
Read moreGood to know — flights from London to Helsinki
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Popular flights to Helsinki
About flights to Helsinki
Overview
Helsinki is one of Europe's most easy-going capital cities: a compact, walkable Baltic seafront town known for Nordic design, island fortresses, leafy parks and a genuine sauna culture. It makes a brilliant long weekend or a first taste of the Nordics, and with a flight time of around three hours it is one of the quickest Scandinavian-style breaks you can reach from the UK. For live pricing, see the When to book chart above.
Best time to fly to Helsinki
Summer (June to August) brings the famous white nights, temperatures around 20C and long, bright evenings for exploring the harbour and islands. December and January are cold and dark but atmospheric, with Christmas markets and snow. May and September are the value sweet spots, with milder weather, thinner crowds and generally softer fares. Compare months on the price charts on this page before you commit.
Airlines and routes
Helsinki is Finnair's home hub, so it offers the widest choice of direct flights from London Heathrow, alongside British Airways. Ryanair flies direct from London Stansted, and Finnair also operates a direct service from Manchester. A non-stop flight takes roughly 3 hours from London and a little over 3 hours from Manchester. Connecting options via Amsterdam, Copenhagen or Frankfurt with KLM, SAS or Lufthansa exist but are rarely necessary given the strong direct network.
Things to do in Helsinki
The centre is small enough to cover on foot, with ferries and trams filling the gaps.
- Suomenlinna Sea Fortress: UNESCO-listed island fortress a short public ferry ride from Market Square.
- Helsinki Cathedral and Senate Square: the gleaming white neoclassical landmark at the city's heart.
- Temppeliaukio Church: the Rock Church, blasted into solid granite, with striking acoustics.
- Market Square and the Old Market Hall: waterfront stalls, salmon soup and Finnish produce.
- Oodi Central Library: an award-winning piece of modern architecture opposite Parliament.
At Helsinki Airport (HEL)
Helsinki Airport sits about 18km north of the city centre. The Ring Rail Line (I and P trains) runs to Helsinki Central Station in roughly 30 minutes, several times an hour. Bus 615 and Finnair-branded coaches also serve the centre, while a taxi or ride-hail takes around 25 to 35 minutes depending on traffic.
Top tips for finding cheap flights to Helsinki
- Book economy roughly 6 to 10 weeks ahead; move earlier for midsummer, Christmas and New Year.
- Fly midweek, typically Tuesday, Wednesday or Saturday, and avoid Friday evening and Sunday returns.
- Use flexible-date search and lean towards the May and September shoulder season.
- Compare Finnair, British Airways and Ryanair, and check Heathrow against Stansted, using the charts above.
Travel essentials
UK passport holders do not need a visa for Finland for stays of up to 90 days in any 180-day period, as it is part of the Schengen area. An ETIAS travel authorisation is expected to be introduced for visa-free visitors, so check the current requirement before you book. Your passport should be issued within the last 10 years and valid for the duration of your stay. The currency is the euro and card payment is accepted almost everywhere. Carry a UK GHIC or EHIC for state-provided healthcare, and take out travel insurance as well. No special vaccinations are required.
Baggage & hand-luggage allowance for flights to Helsinki
Your allowance to Helsinki depends on the airline and the fare you book. The table below shows typical long-haul allowances so you know roughly what to expect — always confirm the exact limits with your airline before you fly.
| Fare type | Hand baggage | Checked baggage |
|---|---|---|
| Basic / Light economy | 1 small under-seat bag | Usually none — add for a fee |
| Standard economy | 1 cabin bag + 1 personal item | Typically 1 × 23 kg |
| Premium economy | 1–2 cabin bags + personal item | Typically 2 × 23 kg |
| Business / First | 2 cabin bags + personal item | Typically 2 × 32 kg |
Indicative only. Allowances vary by airline, route and fare — always check your airline's baggage policy.
Packing & baggage tips
- Full-service carriers (e.g. British Airways, Turkish Airlines, KLM) usually include a checked bag on long-haul economy fares; basic/low-cost fares often don't.
- Cabin (hand) bag size is commonly around 56 × 45 × 25 cm — confirm your airline's limit before you pack.
- Liquids in hand luggage must be in containers of 100 ml or less, inside one clear resealable bag.
- Weigh your bags at home — airport excess-baggage fees are far higher than pre-booked allowances.
- Extra or heavier bags are almost always cheaper added online in advance than at the airport.
FAQs — booking Helsinki flights
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