Flights from London to Helsinki

Our cheapest offers for flights from London to Helsinki

Here you can compare cheap flights from London (LON) to Helsinki (HEL) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Helsinki. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London
Helsinki
Outbound
20/03/26
1 Stopover (ARN)
SK0534, SK0702
11h 25min
Return
17/04/26
1 Stopover (ARN)
SK0705, SK0527
07h 55min
SAS Scandinavian Airlines
£134
Best option
London
Helsinki
Outbound
20/03/26
direct
AY1338
02h 50min
Return
17/04/26
direct
AY1339
03h 10min
Finnair
£252
London
Helsinki
Outbound
20/02/26
1 Stopover (MUC)
LH4199, LH2460
14h 45min
Return
22/02/26
1 Stopover (FRA)
LH0851, LH0924
16h 00min
Lufthansa
£514
London
Helsinki
Outbound
20/03/26
1 Stopover (ARN)
SK0534, SK0702
11h 25min
Return
17/04/26
1 Stopover (ARN)
SK0705, SK0527
07h 55min
SAS Scandinavian Airlines
£135
London
Helsinki
Outbound
20/03/26
1 Stopover (ARN)
SK1530, SK0716
06h 45min
Return
17/04/26
1 Stopover (ARN)
SK0705, SK0527
07h 55min
SAS Scandinavian Airlines ?
£136
London
Helsinki
Outbound
20/03/26
1 Stopover (ARN)
SK0534, SK0702
11h 25min
Return
17/04/26
1 Stopover (ARN)
SK0705, SK0527
07h 55min
SAS Scandinavian Airlines
£147
London
Helsinki
Outbound
01/02/26
1 Stopover (FRA)
LH0915, LH0854
05h 50min
Return
01/03/26
1 Stopover (MUC)
LH2465, LH2472
05h 35min
Lufthansa ?
£152
found yesterday
London
Helsinki
Outbound
29/01/26
2 Stopovers (VIE, MUC)
OS0332, OS0185, OS7431
07h 45min
Return
03/02/26
1 Stopover (FRA)
LH0855, LH0904
05h 40min
Austrian Airlines ?
£189
London
Helsinki
Outbound
20/03/26
1 Stopover (ARN)
SK0528, SK0702
14h 25min
Return
17/04/26
1 Stopover (ARN)
SK0705, SK0527
07h 55min
SAS Scandinavian Airlines ?
£193
London
Helsinki
Outbound
20/03/26
1 Stopover (ARN)
SK0534, SK0702
11h 25min
Return
17/04/26
1 Stopover (ARN)
SK0705, SK0527
07h 55min
SAS Scandinavian Airlines ?
£199
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London to Helsinki

Favourite airline: Norwegian Air International
Most travellers looking for flights on the route from London to Helsinki decide to book with Norwegian Air International.
Norwegian Air International
67 %
Air Baltic
16 %
SAS
8 %
Direct flights are cheaper
On this route, direct flights are £ 7.00 cheaper than flights with a stopover.
non stop flight
1 stop
2 stops
02h 50min
25h 20min
19h 30min
112 £
119 £
194 £
Favourite connection: via Stockholm
Stopover flights on this route are especially popular via Stockholm, making up 44 % of bookings.
Route
bookings
1 stopover Stockholm-Arlanda
14h 45min, from 138 £
44 %
Direct flights
02h 50min, from 112 £
32 %
1 stopover Riga International Airport
25h 20min, from 119 £
17 %

Important flight information

Flight information: London - Helsinki

Outbound and return from 133,99 £
Flight duration min. 02:50 / max. 03:05
Return flight duration min. 03:10/ max. 03:25
Distance 1833 km
Flights per week 71
Departure airport Airport London (LCY, LGW, LHR, LTN, STN, SEN) (LON)
Arrival airport Airport Helsinki-Vantaa (HEL)
Destination country Flights to Finland
Alternative routes to Finland
Alternative flights to Helsinki
Flight destinations with a similar price