How the cheapest fare moved
Oct 29: €74 €74
Oct 22
Oct 29
low €40 · high €109
Departure-day prices · August 2018 London → Helsinki
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Return-day prices · August 2018 Helsinki → London
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Best time to visit Helsinki — climate Jan: ~2°C daytime, 17 rainy days
2°
Jan Feb: ~-1°C daytime, 5 rainy days
-1°
Feb Mar: ~5°C daytime, 9 rainy days
5°
Mar Apr: ~9°C daytime, 11 rainy days
9°
Apr May: ~13°C daytime, 12 rainy days
13°
May Jun: ~17°C daytime, 19 rainy days
17°
Jun Jul: ~23°C daytime, 12 rainy days
23°
Jul Aug: ~19°C daytime, 14 rainy days
19°
Aug Sep: ~16°C daytime, 12 rainy days
16°
Sep Oct: ~10°C daytime, 14 rainy days
10°
Oct Nov: ~6°C daytime, 13 rainy days
6°
Nov Dec: ~4°C daytime, 14 rainy days
4°
Dec Flights from London to Helsinki start around €40 (direct flights available). Range seen recently: €40–79, based on 11 fares found by travellers.
Fly (from €40)
2h 50m duration
€40–79 recent fares
Book
Cheapest cached fares London → Helsinki; direct flights available (e.g. FR). · Based on 11 fares found by travellers in the last 48h
Cheapest round trips to Helsinki Fares found by travellers in the last 48 hours — refreshed daily.
Jan 18 – Jan 22
Ryanair · Direct · 2h 50m
€67
Book
Nov 4 – Nov 7
Ryanair · Direct · 2h 50m
€69
Book
Jan 22 – Jan 25
Ryanair · Direct · 2h 50m
€70
Book
Nov 21 – Nov 28
Ryanair · Direct · 2h 50m
€76
Book
Jan 7 – Jan 10
Ryanair · Direct · 2h 50m
€96
Book
Dec 29 – Jan 6
Ryanair · Direct · 2h 50m
€108
Book
Oct 30 – Nov 13
Ryanair · Direct · 2h 50m
€131
Book
Nov 13 – Nov 15
Ryanair · Direct · 2h 50m
€133
Book
Weather in Helsinki
Thu
🌦️
11°
10°
💧100%
Fri
🌦️
10°
8°
💧67%
Sat
☁️
9°
6°
💧0%
Sun
☁️
9°
6°
💧22%
Mon
🌦️
9°
3°
💧29%
Tue
🌦️
7°
1°
💧12%
Wed
☁️
5°
-1°
💧7%
In Aug, Helsinki typically sees ~19°C daytime highs and 11 rainy days.
Where to stay in Helsinki 3★+ hotels from €163/night (33 hotels sampled, ~3 weeks out).
Hilton Helsinki Kalastajatorppa
hotel · Helsinki
from €163/night ★ 4
Scandic Grand Marina
hotel · Helsinki
from €163/night ★ 4
Scandic Park Helsinki
hotel · Helsinki
from €172/night ★ 4
Good to know Currency Euro (€)
Power plugs Type C/F
Border Schengen — no passport control from Schengen countries
Time difference +2h
Time in the air 2h 50m
Things to do in Helsinki Top-rated tours and tickets from €49 — book ahead for the popular ones.
Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.
About Helsinki
Helsinki (Swedish: Helsingfors) is Finland's capital and largest city. Helsinki combines modern and historic architectural styles with beautiful open spaces. The city is surrounded by hundreds of tiny islands, and is a cultural bridge between the East and West. The "Pearl of the Baltic Sea" is easy to explore on foot or on bike, and it has a laid-back vibe.
Read the full Helsinki guide
Guide content from Wikivoyage contributors (CC BY-SA).
Popular from London Cheapest destinations travellers searched recently — refreshed daily.
Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo ; exchange rates: ECB reference. Data updated 2026-10-29. Some links earn Stayonomy a commission at no cost to you.
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