Flights from London to Helsinki

Trip type

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
25/05/26
1 Stopover (RIX)
BT0652, BT0325
13h 20min
Return
07/06/26
1 Stopover (RIX)
BT0304, BT0651
18h 05min
Air Baltic
£148
Best option
London
Helsinki
Outbound
25/05/26
direct
AY1340
02h 45min
Return
07/06/26
direct
AY1331
03h 10min
Finnair ?
£240
London
Helsinki
Outbound
31/03/26
1 Stopover (ARN)
SK0534, SK0708
13h 50min
Return
21/04/26
1 Stopover (ARN)
SK0709, SK0527
05h 35min
SAS Scandinavian Airlines
£192
London
Helsinki
Outbound
31/03/26
1 Stopover (ARN)
SK1530, SK0710
07h 05min
Return
21/04/26
1 Stopover (ARN)
SK0709, SK0527
05h 35min
SAS Scandinavian Airlines ?
£156
London
Helsinki
Outbound
25/05/26
1 Stopover (RIX)
BT0652, BT0301
21h 10min
Return
07/06/26
1 Stopover (RIX)
BT0308, BT0651
12h 55min
Air Baltic ?
£159
London
Helsinki
Outbound
31/03/26
1 Stopover (ARN)
SK1530, SK0710
07h 05min
Return
21/04/26
1 Stopover (ARN)
SK0725, SK0527
21h 45min
SAS Scandinavian Airlines
£163
London
Helsinki
Outbound
25/05/26
1 Stopover (RIX)
BT0652, BT0325
13h 20min
Return
07/06/26
1 Stopover (RIX)
BT0308, BT0651
12h 55min
Air Baltic
£164
London
Helsinki
Outbound
25/05/26
1 Stopover (RIX)
BT0652, BT0325
13h 20min
Return
07/06/26
1 Stopover (RIX)
BT0304, BT0651
18h 05min
Air Baltic ?
£169
London
Helsinki
Outbound
08/08/26
1 Stopover (CPH)
SK0504, SK1720
09h 10min
Return
31/08/26
1 Stopover (CPH)
SK1713, SK0505
26h 00min
SAS Scandinavian Airlines
£193
London
Helsinki
Outbound
08/08/26
1 Stopover (CPH)
SK0504, SK1720
09h 10min
Return
31/08/26
1 Stopover (CPH)
SK1713, SK0505
26h 00min
SAS Scandinavian Airlines
£196
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 £147.70
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