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Cheap flights from London to Helsinki from $121

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — HEL
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Helsinki-Vantaa are usually found in January or March, booked 69 days in advance, depart on a Thursday or Monday and return on a Thursday

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Cheapest flights from London to Helsinki
Explore the most affordable flight options available from London to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 December 2025.

Wed 10/1209:55LHR - HEL
1 stop8h 25mScandinavian Airlines
Thu 8/121:35HEL - LHR
1 stop13h 20mScandinavian Airlines
Deal found 30/11$290
Thu 11/1206:40LHR - HEL
1 stop6h 45mScandinavian Airlines
Wed 17/1211:20HEL - LHR
1 stop9h 10mScandinavian Airlines
Deal found 30/11$312
Mon 1/1206:20STN - HEL
Nonstop3h 10mRyanair
Thu 4/1220:15HEL - STN
Nonstop3h 10mRyanair
Deal found 30/11$318
Wed 31/1219:30LHR - HEL
1 stop13h 10mScandinavian Airlines
Sun 18/115:35HEL - LHR
2 stops8h 00mScandinavian Airlines
Deal found 1/12$341
Wed 10/1209:15LGW - HEL
1 stop11h 10mNorwegian
Sun 11/116:40HEL - LGW
Nonstop3h 10mNorwegian
Deal found 30/11$342
Mon 8/1218:40LHR - HEL
1 stop4h 55mScandinavian Airlines
Tue 9/1216:10HEL - LHR
1 stop5h 45mScandinavian Airlines
Deal found 30/11$342
Mon 15/1217:00LHR - HEL
1 stop6h 35mScandinavian Airlines
Sat 10/118:30HEL - LHR
1 stop16h 25mScandinavian Airlines
Deal found 30/11$344
Tue 9/1209:15LGW - HEL
1 stop8h 05mNorwegian
Sun 11/116:40HEL - LGW
Nonstop3h 10mNorwegian
Deal found 30/11$366
Fri 12/1217:00LHR - HEL
1 stop6h 35mScandinavian Airlines
Sun 14/1215:35HEL - LHR
2 stops8h 05mScandinavian Airlines
Deal found 1/12$366
Wed 10/1209:15LGW - HEL
1 stop11h 10mNorwegian
Sat 10/109:55HEL - LGW
1 stop4h 25mNorwegian
Deal found 30/11$376
Fri 5/1206:45STN - HEL
Nonstop3h 10mRyanair
Sun 7/1211:55HEL - STN
Nonstop3h 10mRyanair
Deal found 1/12$392
Tue 9/1209:15LGW - HEL
1 stop8h 05mNorwegian
Sat 10/109:55HEL - LGW
1 stop4h 25mNorwegian
Deal found 30/11$400

Cheap flight deals from London to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 December 2025.

Round-trip from

$223

One-way from

$121

Popular in

July

Cheapest in

January

Average price

$394

Good one-way deal

$265 or less
Norwegian
  • Norwegian
  • 13/3-15/3
  • Nonstop
  • 6h 10m total
  • London to Helsinki
Search Deals
Ryanair
  • Ryanair
  • 15/1
  • Nonstop
  • 3h 10m total
  • London to Helsinki
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($125 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a one-way flight from London (LON) to Helsinki-Vantaa.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 2 December 2025.
Use the filters below to find and compare flights from London to Helsinki that are best for you.

Fly from

London

Fly to

Helsinki

Route

Depart

Return

Price

LondonHelsinki

LGW - HEL

LGWHEL

London Gatwick

Fri 13/3

10:05-15:05

Nonstop3h 00m

Helsinki-Vantaa

Sun 15/3

16:40-17:50

Nonstop3h 10m

$223

LondonHelsinki

LGW - HEL

LGWHEL

London Gatwick

Thu 5/2

13:00-19:20

1 stop4h 20m

Helsinki-Vantaa

Mon 9/2

09:20-12:20

1 stop5h 00m

$234

LondonHelsinki

LGW - HEL

LGWHEL

London Gatwick

Fri 13/3

13:00-22:25

1 stop7h 25m

Helsinki-Vantaa

Mon 16/3

07:40-16:20

1 stop10h 40m

$260

LondonHelsinki

LHR - HEL

LHRHEL

London Heathrow

Thu 5/2

06:40-15:25

1 stop6h 45m

Helsinki-Vantaa

Sun 8/2

15:35-21:20

1 stop7h 45m

$289

LondonHelsinki

LHR - HEL

LHRHEL

London Heathrow

Fri 30/1

06:40-15:25

1 stop6h 45m

Helsinki-Vantaa

Sun 1/2

06:55-12:55

1 stop8h 00m

$289

LondonHelsinki

LHR - HEL

LHRHEL

London Heathrow

Fri 13/3

13:55-23:45

1 stop7h 50m

Helsinki-Vantaa

Mon 16/3

20:55-08:55

1 stop14h 00m

$289

LondonHelsinki

LHR - HEL

LHRHEL

London Heathrow

Tue 10/2

06:40-15:25

1 stop6h 45m

Helsinki-Vantaa

Thu 12/2

16:10-19:55

1 stop5h 45m

$290

LondonHelsinki

LHR - HEL

LHRHEL

London Heathrow

Thu 15/1

06:40-21:05

1 stop12h 25m

Helsinki-Vantaa

Mon 19/1

16:10-08:55

1 stop18h 45m

$290

LondonHelsinki

LGW - HEL

LGWHEL

London Gatwick

Wed 14/1

17:35-00:30

1 stop4h 55m

Helsinki-Vantaa

Wed 21/1

07:40-16:55

2 stops11h 15m

$292

LondonHelsinki

LGW - HEL

LGWHEL

London Gatwick

Mon 9/3

09:25-20:40

1 stop9h 15m

Helsinki-Vantaa

Wed 11/3

15:30-08:40

1 stop19h 10m

$298

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 60 results
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Best time to book a flight from London to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from London to Helsinki?

Use this chart to determine the optimal time to book a return flight from London to Helsinki. Price data was last updated on 28 November 2025.

The price you pay for your flight from London to Helsinki may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London to Helsinki?

Currently, March is the cheapest month in which you can book a flight from London to Helsinki (average of $69). Flying from London to Helsinki in July is currently the most expensive (average of $209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to HEL?

Find hourly flight availability from London to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 December 2025.

A simple way to save on the total cost of your ticket is to fly from London to Helsinki in the morning. If you’re flexible enough to do this you can expect to save up to 76% on your trip compared to booking a flight in the afternoon.

Weekly flight availability from London to Helsinki

Explore weekly flight availability from London to Helsinki. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 2 December 2025.

The most flights from LON to HEL are scheduled on a Friday (32 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (22 on average).

How much does it cost for a return flight from London to Helsinki?

How often are flights from London to Helsinki delayed?

About 23% of weekly flights between London and Helsinki have experienced delays in the past year, with the average delay time being 108 minutes.

What is the most punctual flight time for London to Helsinki flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Helsinki flights?

Over the past year, Ryanair have had the lowest number of delays on this route, with just 12% of flights being delayed.

Reviews of airlines servicing Helsinki

Get insights into the airlines that provide service to Helsinki. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helsinki. Reviews last updated 2 December 2025.
Check out reviews from past customers who have flown with Ryanair from London to Helsinki to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.8
Okay
5,209 reviews
Check prices

Boarding

6.7

Entertainment

5.6

Crew

7.5

Food

6.0

Comfort

6.5

Overall

6.8

Reviews

1 / 20
2.0
Mediocre

brendan,Sept 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight
Ryanair
6.8
Okay
5,209 reviews
Ryanair
6.8
Okay
5,209 reviews
Check prices

Boarding

6.7

Entertainment

5.6

Crew

7.5

Food

6.0

Comfort

6.5

Overall

6.8

Reviews

1 / 20
2.0
Mediocre

brendan,Sept 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight

Related info for your journey

Find useful and relevant information for your journey from London to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Helsinki from London?

    Located just 17.1 km from the city centre, Helsinki-Vantaa is the airport most travellers will use when flying to Helsinki from London. Booking flights from London to Helsinki-Vantaa (HEL) should be relatively easy as there are 27 daily inbound flights from London from 1 airline.

  • How long is the flight from London to Helsinki?

    Departing from London to Helsinki will take you 3h. The distance from London to Helsinki is about 1856 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from London to Helsinki round-trip?

    Our cheapest airline available from London to Helsinki is Finnair. Our recent data shows that you can find tickets from as low as $305 on this airline.

  • What are the cheapest airlines to fly from London to Helsinki one-way?

    The cheapest airline one-way is Ryanair, with whom users have recently found tickets for as low as $121. However, be on the lookout for offers from Norwegian and Scandinavian Airlines, as they are both options that can get you from London to Helsinki for a low price.

  • What are the most popular routes from London to Helsinki?

    While some choose either London Luton - Helsinki-Vantaa or London City - Helsinki-Vantaa, London Stansted - Helsinki-Vantaa is the most popular route from London to Helsinki.

  • What are the most reliable airlines from London to Helsinki?

    No one likes to see their flight delayed. When booking a flight from London to Helsinki consider choosing LATAM Airlines(87%), Vietnam Airlines(76%) or Malaysia Airlines(76%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London to Helsinki?

    Looking for the cheapest flight from London to Helsinki? While on average our users pay $386, our data indicates the cheapest price to be $265. The most popular route (London Stansted - Helsinki-Vantaa), is priced around $205.

  • Can I find deals for flights from London to Helsinki that include hotel bookings?

    Yes. In addition to deals on London to Helsinki flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Helsinki?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Helsinki.

  • Can I find deals for business class flights from London to Helsinki?

    Yes. Cheapflights offers flight deals from London to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Helsinki?

    Currently, March is the cheapest month in which you can book a flight from London to Helsinki (average of $69). Flying from London to Helsinki in July is currently the most expensive (average of $209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from London to Helsinki

Discover the top airline that operate flights from London to Helsinki. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$305Average$431FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Helsinki?

When you search for this flight from London to Helsinki, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from London to Helsinki?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Helsinki.

Can Cheapflights find flights from London to Helsinki with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Helsinki, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Helsinki become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Helsinki from London today and book when prices fit your budget.

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