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
30/09/25
1 Stopover (ARN)
D84460, D82603
11h 35min
Return
-
£68
London
Helsinki
Outbound
09/10/25
1 Stopover (ARN)
SK0532, SK0722
04h 30min
Return
14/10/25
1 Stopover (ARN)
SK0701, SK0531
07h 45min
SAS Scandinavian Airlines
£132
Best option
London
Helsinki
Outbound
08/11/25
direct
AY1338
02h 55min
Return
11/11/25
direct
AY1335
03h 15min
Finnair
£157
London
Helsinki
Outbound
09/10/25
1 Stopover (ARN)
SK0532, SK0722
04h 30min
Return
14/10/25
1 Stopover (ARN)
SK0705, SK0531
04h 35min
SAS Scandinavian Airlines ?
£137
London
Helsinki
Outbound
08/12/25
1 Stopover (RIX)
BT0652, BT0307
09h 15min
Return
24/12/25
1 Stopover (RIX)
BT0308, BT0651
13h 20min
Air Baltic ?
£141
London
Helsinki
Outbound
09/10/25
1 Stopover (ARN)
SK0526, SK0710
05h 00min
Return
14/10/25
1 Stopover (ARN)
SK0705, SK0527
08h 40min
SAS Scandinavian Airlines
£142
London
Helsinki
Outbound
08/12/25
1 Stopover (RIX)
BT0652, BT0301
20h 35min
Return
24/12/25
1 Stopover (RIX)
BT0308, BT0651
13h 20min
Air Baltic
£146
London
Helsinki
Outbound
08/12/25
1 Stopover (RIX)
BT0652, BT0301
20h 35min
Return
24/12/25
1 Stopover (RIX)
BT0308, BT0651
13h 20min
Air Baltic
£148
London
Helsinki
Outbound
19/02/26
1 Stopover (RIX)
BT0652, BT0301
20h 35min
Return
22/02/26
1 Stopover (RIX)
BT0308, BT0653
21h 25min
Air Baltic ?
£152
London
Helsinki
Outbound
19/02/26
1 Stopover (RIX)
BT0652, BT0305
27h 25min
Return
22/02/26
1 Stopover (RIX)
BT0308, BT0653
21h 25min
Air Baltic ?
£153
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

Cheapest outbound flight from £ 67,40
Outbound and return from £ 131,60
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 flights to Helsinki
Flight destinations with a similar price