
| Most accurate provider | Mytrip 3 stars | 
|---|---|
| Most trusted provider | Mytrip 3 stars | 
| Round-trip from | $172 (Mytrip) | 
| One-way from | $101 (Mytrip) | 
| Popular in | December | 
| Cheapest in | March | 
| Average price | $261 | 
| Good round-trip deal | $214 or less | 
| Good one-way deal | $234 or less | 
Fly from
Fly to
Route
Depart
Return
Price
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Tue 2/24
1:55 pm-10:35 am
1 stop18h 40m
Helsinki-Vantaa
Fri 2/27
4:10 pm-7:55 pm
1 stop5h 45m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Fri 3/13
6:40 am-3:05 pm
1 stop6h 25m
Helsinki-Vantaa
Sun 3/15
3:35 pm-9:20 pm
1 stop7h 45m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Thu 2/26
1:55 pm-9:05 pm
1 stop5h 10m
Helsinki-Vantaa
Mon 3/2
4:10 pm-9:20 pm
1 stop7h 10m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Mon 11/24
6:40 am-8:20 pm
1 stop11h 40m
Helsinki-Vantaa
Wed 11/26
7:00 am-5:00 pm
1 stop12h 00m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Thu 11/20
6:40 am-9:05 pm
1 stop12h 25m
Helsinki-Vantaa
Wed 11/26
7:00 am-5:00 pm
1 stop12h 00m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Mon 12/15
6:40 am-3:25 pm
1 stop6h 45m
Helsinki-Vantaa
Mon 12/22
4:35 pm-9:35 pm
2 stops7h 00m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Mon 12/1
6:40 am-8:20 pm
1 stop11h 40m
Helsinki-Vantaa
Mon 12/8
4:10 pm-7:55 pm
1 stop5h 45m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Tue 11/18
9:55 am-11:45 pm
1 stop11h 50m
Helsinki-Vantaa
Thu 11/20
6:15 am-6:30 pm
1 stop14h 15m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Mon 11/24
6:40 am-11:45 pm
1 stop15h 05m
Helsinki-Vantaa
Sun 11/30
6:15 am-9:20 am
1 stop5h 05m
LondonHelsinki
LHR - HEL
LHRHEL
London Heathrow
Thu 11/13
6:40 am-3:25 pm
1 stop6h 45m
Helsinki-Vantaa
Fri 11/14
6:15 am-9:20 am
1 stop5h 05m
| Provider | Price Accuracy | Trust Score* | 
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | 
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Helsinki, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, July is the cheapest month in which you can book a flight from London Heathrow Airport to Helsinki (average of $139). Flying from London Heathrow Airport to Helsinki in May is currently the most expensive (average of $182). 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.
It’s optimal to fly from London Heathrow Airport to Helsinki in the evening. By choosing this option you can save up to 81% on the cost of your flight, compared to a flight in the afternoon.
About 22% of weekly flights between London and Helsinki have experienced delays in the past year, with the average delay time being 108 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Friday 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.
Over the last year, Malaysia Airlines have had the lowest number of delays on this route, with just 17% of flights being delayed.
Stockholm (ARN) – chosen by Cheapflights users on 75% of 1-stop itineraries from London Heathrow Airport to Helsinki on Cheapflights.
Flights via Copenhagen (CPH) have the shortest average one-way travel time for 1-stop routes: 5h 05m.
Flights via Copenhagen (CPH) have the shortest average one-way travel time for 1-stop routes: 5h 05m.
Flights via Copenhagen (CPH) offer the fastest connection on this route, with an average layover time of 2h 40m.
Boarding
Crew
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Sep 2025
WAW - HEL
Boarding
Crew
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Sep 2025
WAW - HEL
Boarding
Crew
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Sep 2025
WAW - HEL
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$159 | Average$208 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$197 | Average$313 | FlexibilityNo cancel fee | On-time76% |