HEL - LHR

$103 Find Cheap Flights from Helsinki 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 from Helsinki to London departing on 4/21. 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 Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to London, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$206
Typical prices: $272-$391
Lufthansa
Fri 4/17Mon 4/20
HEL - LHR • 1 stop
Cheapest non-stop
$274
Typical prices: $271-$407
Finnair
Wed 5/27Sun 5/31
HEL - LHR • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Finnair's A350 offers higher humidity for comfort.
BA's Euro Traveller includes a carry-on bag.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $206 (round-trip)
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Finnair. Average duration is 3h 08m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 87% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $191 (round-trip)
Shortest trip • 4h 45m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 12% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Helsinki to London (HEL-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helsinki 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 round-trip flight deals from Helsinki to London

Fri, Apr 17 - Mon, Apr 20
Lufthansa Logo
7:40 pm - 8:15 am
HEL
-
LHR
14h 35m
1 stop
Lufthansa Logo
8:25 pm - 12:05 pm
LHR
-
HEL
13h 40m
1 stop
$206Lufthansa
Tue, May 5 - Tue, May 12
Lufthansa Logo
6:25 pm - 10:10 pm
HEL
-
LHR
5h 45m
1 stop
Lufthansa Logo
9:00 am - 6:55 pm
LHR
-
HEL
7h 55m
1 stop
$216Lufthansa
Fri, Apr 17 - Wed, Apr 22
Lufthansa Logo
7:40 pm - 8:15 am
HEL
-
LHR
14h 35m
1 stop
Lufthansa Logo
4:25 pm - 1:35 am
LHR
-
HEL
7h 10m
1 stop
$217Lufthansa
Fri, Apr 17 - Fri, Apr 24
Lufthansa Logo
7:40 pm - 8:15 am
HEL
-
LHR
14h 35m
1 stop
Lufthansa Logo
3:30 pm - 12:40 am
LHR
-
HEL
7h 10m
1 stop
$218Lufthansa
Wed, Apr 15 - Fri, Apr 17
Scandinavian Airlines Logo
1:25 pm - 9:20 pm
HEL
-
LHR
9h 55m
1 stop
Scandinavian Airlines Logo
6:05 pm - 9:35 am
LHR
-
HEL
13h 30m
1 stop
$221Scandinavian Airlines
Tue, Apr 21 - Fri, Apr 24
Scandinavian Airlines Logo
1:25 pm - 5:00 pm
HEL
-
LHR
5h 35m
1 stop
Scandinavian Airlines Logo
9:05 pm - 9:35 am
LHR
-
HEL
10h 30m
1 stop
$222Scandinavian Airlines
Sat, Apr 25 - Mon, Apr 27
Lufthansa Logo
6:15 pm - 10:10 pm
HEL
-
LHR
5h 55m
1 stop
Lufthansa Logo
7:25 am - 6:55 pm
LHR
-
HEL
9h 30m
1 stop
$234Lufthansa
Tue, May 5 - Fri, May 8
Scandinavian Airlines Logo
11:05 am - 5:00 pm
HEL
-
LHR
7h 55m
1 stop
Scandinavian Airlines Logo
9:05 pm - 9:35 am
LHR
-
HEL
10h 30m
1 stop
$235Scandinavian Airlines
Sat, Apr 18 - Tue, Apr 28
Scandinavian Airlines Logo
7:10 pm - 8:55 am
HEL
-
LHR
15h 45m
1 stop
Scandinavian Airlines Logo
6:40 am - 12:55 pm
LHR
-
HEL
4h 15m
1 stop
$236Scandinavian Airlines
Tue, Apr 21 - Fri, Apr 24
Scandinavian Airlines Logo
11:05 am - 7:55 pm
HEL
-
LHR
10h 50m
1 stop
Scandinavian Airlines Logo
9:05 pm - 9:35 am
LHR
-
HEL
10h 30m
1 stop
$238Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for Helsinki to London flights

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

How much is a round-trip flight from Helsinki to London Heathrow Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Helsinki to London Heathrow Airport departing in April.

What’s the cheapest day of the week to fly from Helsinki to London?

The average price of all round-trip flights from Helsinki to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Helsinki to London, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from London, Wednesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Helsinki to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Helsinki to London Heathrow Airport, 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 from Helsinki to London Heathrow Airport is February, where tickets cost $270 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $359 and $328 respectively.

Can I save money by flying with a layover from Helsinki to London Heathrow Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $361 on average.

How far in advance should I book a flight from Helsinki to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Helsinki to London Heathrow Airport, 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 on the flight from Helsinki to London Heathrow Airport, you should book around 5 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Helsinki to London

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Good to know

Low seasonJanuary
Cheapest flight$103
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Helsinki to London

When to book flights from Helsinki to London

Are your dates flexible? Find out the best times to travel from Helsinki to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Helsinki to London flights

  • What is the cheapest flight from Helsinki to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Helsinki to London Heathrow Airport was $103 for a one-way ticket and $206 for a round-trip.

  • Do I need a passport to fly between Helsinki and London?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Helsinki and on arrival in London.

  • Which airlines offer Wi-Fi service onboard planes from Helsinki to London?

    Only Finnair offers inflight Wi-Fi service on the Helsinki to London flight route.

  • Which aircraft models fly most regularly from Helsinki to London?

    The Airbus A321 (sharklets) is the aircraft model that flies most regularly on the Helsinki to London flight route.

  • Which airline alliances offer flights from Helsinki to London?

    SkyTeam, and oneworld are the airline alliances operating flights between Helsinki and London, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Helsinki to London?

    There are nonstop flights from Helsinki to London on a daily basis.

  • Which is the best airline for flights from Helsinki to London, Finnair or Scandinavian Airlines?

    The two airlines most popular with KAYAK users for flights from Helsinki to London are Finnair and Scandinavian Airlines. With an average price for the route of $344 and an overall rating of 7.7, Finnair is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $212 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Helsinki 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 from Helsinki to London.

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

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

  • What is the Hacker Fare option on flights from Helsinki 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 to Helsinki with another airline. Booking your flights between Helsinki and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helsinki 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 from Helsinki up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Helsinki to London Heathrow Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $201 or less one-way and $428 or less round-trip.

Prefer to fly direct from Helsinki to London?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Helsinki-Vantaa to London Heathrow.
Find which airlines fly direct from Helsinki-Vantaa Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Helsinki-Vantaa to London Heathrow

Monday

Finnair

Finnair

Tuesday

Finnair

Finnair

Wednesday

Finnair

Finnair

Thursday

Finnair

Finnair

Friday

Finnair

Finnair

Saturday

Finnair

Finnair

Sunday

Finnair

Finnair

See more direct flights

Direct returns

London Heathrow to Helsinki-Vantaa

Monday

Finnair

Finnair

Tuesday

Finnair

Finnair

Wednesday

Finnair

Finnair

Thursday

Finnair

Finnair

Friday

Finnair

Finnair

Saturday

Finnair

Finnair

Sunday

Finnair

Finnair

See more direct flights

Reviews of the top airlines flying from Helsinki to London

 
See real verified KAYAK customer reviews for airlines flying from Helsinki to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helsinki 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.
7.7
FinnairOverall score based on 1374 reviews
7.7Boarding
6.7Food
6.9Entertainment
7.5Comfort
8.2Crew
Airline reviews

Great if not for the boarding by bus at Heathrow terminal 3. Medieval disappointing time-consuming and very hard on handicapped flyers. It was awful

10.0 ExcellentFrancesca, Mar 2026
LHR - BOS
Read more Finnair reviews

Great if not for the boarding by bus at Heathrow terminal 3. Medieval disappointing time-consuming and very hard on handicapped flyers. It was awful

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.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

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

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

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

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.

Really good. Everything went smoothly. That's what I hope for when I'm on a long flight, especially with multiple changes. Thank you SAS.

I wish they have given us explanations for the delays. And the rebooking process in Copenhagen was too long. I had to wait about 4 hours before they assign me a hotel. From there the handling process (accommodation, transportation and meal) was excellent.

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Since our earlier flight was delayed, we missed this flight and were rerouted on Lufthansa 2 days later.

really nothing ...uncomfortable seating, cramped ....no better than a US short hopper flight.. never again

I was surprised how good an American airline can be - I was really impressed.

Excellent service throughout. Airport process is quick and easy. Very courteous staff. Great service in the plane! Just outstanding punctuality and service overall!!

I have paid for extra legroom on my flight. My seat was broken and did not recline. The crew could not fix it and refused to provide me with another seat

It was so hot on the plane. No air jets above the seats

The Scandinavian flight was excellent, however the second flight was partnered with TAP Portugal which was not so good. crowded gate area with no chairs, delayed flight, bad boarding process, no entertainment system onboard, and the baggage didn’t get to the carousel until well over an hour which caused our taxi that was waiting to leave. Love SAS, hate TAP.

Everything you need to know for your flight from Helsinki to London

Information on your arrival and departure airports