£22 Find Cheap Flights from Finland to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 25/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Finland to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Finland to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Finland to London

Fri, 13 Mar - Tue, 17 Mar
Ryanair Logo
22:30 - 23:40
HEL
-
STN
3h 10mdirect
Ryanair Logo
06:00 - 11:10
STN
-
HEL
3h 10mdirect
£51Ryanair
Fri, 13 Mar - Sun, 15 Mar
Ryanair Logo
22:30 - 23:40
HEL
-
STN
3h 10mdirect
Ryanair Logo
05:55 - 11:05
STN
-
HEL
3h 10mdirect
£53Ryanair
Mon, 16 Mar - Fri, 20 Mar
Norwegian Logo
19:50 - 16:20
HEL
-
LGW
22h 30m
1 stop
Norwegian Logo
10:05 - 15:05
LGW
-
HEL
3h 00mdirect
£90Norwegian
Wed, 15 Apr - Wed, 22 Apr
Norwegian Logo
08:30 - 19:15
HEL
-
LGW
12h 45m
1 stop
Norwegian Logo
11:00 - 18:20
LGW
-
HEL
5h 20m
1 stop
£96Norwegian
Mon, 16 Mar - Wed, 25 Mar
Multiple Airlines Logo
23:20 - 12:15
RVN
-
STN
14h 55m
2 stops
Multiple Airlines Logo
10:00 - 15:30
STN
-
RVN
3h 30mdirect
£101Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
15:40 - 19:15
HEL
-
LGW
5h 35m
1 stop
Multiple Airlines Logo
07:05 - 19:45
LGW
-
HEL
10h 40m
1 stop
£106Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Scandinavian Airlines Logo
13:25 - 19:55
HEL
-
LHR
8h 30m
1 stop
Scandinavian Airlines Logo
06:40 - 12:55
LHR
-
HEL
4h 15m
1 stop
£126Scandinavian Airlines
Fri, 13 Mar - Mon, 16 Mar
Scandinavian Airlines Logo
16:05 - 21:40
HEL
-
LHR
7h 35m
1 stop
Scandinavian Airlines Logo
06:40 - 23:45
LHR
-
HEL
15h 05m
1 stop
£129Scandinavian Airlines
Tue, 14 Apr - Wed, 22 Apr
Lufthansa Logo
14:05 - 17:55
HEL
-
LCY
5h 50m
1 stop
Lufthansa Logo
09:15 - 17:00
LCY
-
HEL
5h 45m
1 stop
£178Lufthansa
Tue, 21 Apr - Mon, 27 Apr
Lufthansa Logo
14:05 - 17:55
HEL
-
LCY
5h 50m
1 stop
Lufthansa Logo
09:15 - 00:30
LCY
-
HEL
13h 15m
1 stop
£184Lufthansa
Booking Insights

KAYAK's insights & trends for flights to London

Get data-powered insights and trends into flights to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to London?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The flight route Helsinki to London was the most popular route on KAYAK over the last 3 days. A return flight could be found for £51. Also in the last 3 days, Rovaniemi was the most budget-friendly place to find a flight to London with one-way tickets at £22 and £51 return.

What is the cheapest month to fly to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to London is June, where tickets cost £275 on average for one-way flights. On the other hand, the most expensive months are December and February, where the average cost of tickets from Finland is £430 and £351 respectively. For return trips, the best month to travel is March with an average price of £89.

What is a good deal for flights to London?

If you’re looking for cheap airfare to London, 25% of our users found tickets to London for the following prices or less: From Helsinki £79 one-way - £134 return.

How far in advance should I book a flight to London?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 86 days before departure.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Stansted Airport, with an average flight price of £66.

Good to know - Cheap tickets from Finland to London

Low seasonJanuary
Cheapest flight£22
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (12% more expensive on average)
Flight from Rovaniemi to London Stansted Airport

FAQs - booking London flights

  • What is the cheapest flight to London?

    The flight route Helsinki to London was the most popular route on KAYAK over the last 3 days. A return flight could be found for £51. Also in the last 3 days, Rovaniemi was the most budget-friendly place to find a flight to London with one-way tickets at £22 and £51 return.

  • Which London airport is closest to central London?

    There are 6 major airports in London. The nearest airport from London city centre is London City (8 miles), followed by London Heathrow Airport (14 miles), London Gatwick Airport (24 miles), and London Luton Airport (28 miles).

  • How much is a flight to London?

    On average, a flight to London costs £124. The cheapest price found on KAYAK in the last 2 weeks cost £23 and departed from Helsinki-Vantaa Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Friday where tickets can be as cheap as £166. On the other hand, the most expensive day to fly is Thursday, where prices are £195 on average.

  • How does KAYAK find such low prices on flights to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to London?

    The cheapest time of day to fly to London is generally at night, when flights cost £119 on average. The most expensive time of day to fly to London is generally in the morning, which is peak travel time and where the average cost of a ticket is £262.

Top tips for finding cheap flights to London

  • Looking for a cheap flight from Finland to London? 25% of our users found flights on this route for £77 or less one-way and £134 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Reviews of the top 4 airlines flying from Finland to London

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Finland to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
NorwegianOverall score based on 255 reviews
6.8Food
8.0Boarding
8.4Crew
7.7Comfort
6.3Entertainment
Airline reviews

Questionary would have N/A available, I did not eat, can't say I'm either sad or happy with that.

10.0 ExcellentIngvaldur Þór, Nov 2025
AGP - ARN
Read more Norwegian reviews

Questionary would have N/A available, I did not eat, can't say I'm either sad or happy with that.

budget airline, you get what you pay for but pilots flew great, crew was awesome!

I mostly blame the dreadful Berlin airport, not Norwegian, but we departed in the rain after trekking for a mile to get to the gate, carrying everything including our baby and luggage down a couple flights of stairs and then walking to the plane on the tarmac in the rain and climbing more stairs to enter the hot airplane. The flight itself was fine, but sitting in the cramped chair, soaking wet, baby in lap, also wet, was hard to overcome.

Delays, uncomfortable, and no compensation or free water after being stuck in the plane for more than an hour!

Flight was 1 hour late. The luggages also arrived 45 minutes late.

Ticket desk was really helpful in resolving issues with ticket machine. Reception staff were less than helpful.l and grumpy when issues were highlighted.

The flight was delayed by 1.5 hours & the gate was changed, so it was a long walk from the 1st gate to the 2nd gate. The bags took about 1 hour to arrive after landing. Ridiculous wait for bags for which we paid extra $$$$$$$

The upholstery of our seats (7A+7B) were in bad shape: twisted, hard and uncomfortable. We also had a 55 minutes delay. Apart from that everything was OK.

We arrived on time to our destination and the flight was peaceful (and short!.)

30 minutes late as usual. Could not pay for any food or drinks, despite using three cards. Amex, Mastercard and Visa. Uncomfortable seats

budget airline, not a lot of amenities but perfectly priced for a 3.5hr flight. Crew/Pilots were great, communicative, and overall provided a great experience for the price point. Have flown with Norwegian when coming in/out of Norway for the past x10 years now!

Unfriendly staff at boarding gate. Unclear announcement at about gate change. Low cost airline with no amenities on board. Bring your own water.

Terrible communication about cancellation of flight. Put on a flight the day after our departure day even though there were seats the following day

…not even a power outlet. Nothing but uncomfortable seating with unhelpful staff.

Overall flight was fantastic.i really enjoy the whole journey .

Little more legroom would have been nice. But it's a very short flight, so it was fine really.

Short flight, some waiting to board, but no issues and no frills.

No staff at the gate and the flights were not posted on the board so we missed our flight. Horrible experience. Be VERY careful flying Norwegian. Super limited ability to communicate with their slim staffing and restricted hours.

Tickets were cheap but it says no where that food was not included, I travel Austrian, Swiss and Turkish airlines all the time always food is included, never flew Norwegian again

Positive: It was refreshingly easy and polite check-in and boarding staff. Flight was on time and Helsinki is a very well-signposted airport. Shopping was nice as well. Flight was not full and I had lots of space in economy. Flight was perfectly on time. Negative: Food and drink not very good, but that it is normal on any airline. Didn't expect anything else.

Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.

Very good seat, very comfortable, good food, and good service.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Delay in boarding with no explanation why. Stood for about 40 mins waiting to board

Great flight just took some time to board even when lining up early for the flight, even taking off took longer then expected.

Rubbish moved my seat don’t know why same seat configuration cost me extra so me and my wife could sit together now I know why no paper ticket so they can do this

Slow and delayed boarding, including standing outside 15m in -3 temperatures, Late take-off approx 45 mins Very slow bag delivery approx 45 min - no explanation

The flight boarded nice and early and this meant there was no sudden rush at the gate. The only down side was the cabin was very cold 🥶

Flying from Newquay was an absolute dream! Would 100% recommend flights from there!

It would have been better if I was not ill so I didn't go and I didn't come back and I could not transfer my tickets to a later date as Ryanair stop flying from Manchester at the end of October till next year

Passengers next to me insisted I change seats so they could sit together. I had to frequently move so that when the sear belt sign was on I was in my proper seat! I was returning from helping my mum with my dad's things after his sudden death and didn't feel like arguing with the other passengers.

Flying from Hamburg to Stansted was a nightmare if I have to be honest, the flight was due to leave at 15:50 and we ended up not taking off properly till 16:56. They really don’t have enough people doing the sorting of baggage where you get the sticker for your case before the security check, going through security was 10x more faster then the whole baggage situation.

Flight got delayed and they didn’t keep us informed all the time.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Milton Keynes
Eastbourne
Hounslow
Luton
Southend-on-Sea
Slough
Winchester
Croydon
Stansted
Folkestone
Chichester
Maidstone
Colchester
Chelmsford
Crawley
Richmond
Bedford
Hastings
Watford

Everything you need to know for your flight to London

Cabin class types available on flights to London

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.