Kos to Helsinki

1 ways to travelfastest 5h 55mfly from €213
Photo: Tapio Haaja / Unsplash

Departure-day prices · October 2026 Kos → Helsinki

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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.

Return-day prices · October 2026 Helsinki → Kos

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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.

Best time to visit Helsinki — climate

Jan: ~2°C daytime, 17 rainy days 2° JanFeb: ~-1°C daytime, 5 rainy days -1° FebMar: ~5°C daytime, 9 rainy days 5° MarApr: ~9°C daytime, 11 rainy days 9° AprMay: ~13°C daytime, 12 rainy days 13° MayJun: ~17°C daytime, 20 rainy days 17° JunJul: ~23°C daytime, 11 rainy days 23° JulAug: ~19°C daytime, 14 rainy days 19° AugSep: ~16°C daytime, 12 rainy days 16° SepOct: ~10°C daytime, 14 rainy days 10° OctNov: ~6°C daytime, 15 rainy days 6° NovDec: ~4°C daytime, 14 rainy days 4° Dec

Flights from Kos to Helsinki start around €213 (typically 3 stops). Range seen recently: €213–438, based on 7 fares found by travellers.

Fly (from €213)
5h 55mduration
€213–438recent fares
Book
Cheapest cached fares Kos → Helsinki; typically 3 stops (e.g. OA). · Based on 7 fares found by travellers in the last 48h

Cheapest round trips to Helsinki

Fares found by travellers in the last 48 hours — refreshed daily.

Oct 21 – Oct 25 easyJet · 2 stops · 7h 50m €408 Book
Oct 21 – Oct 24 easyJet · 2 stops · 7h 50m €432 Book
Oct 21 – Oct 23 easyJet · 2 stops · 7h 50m €445 Book
Oct 21 – Oct 22 Olympic Air · 3 stops · 6h 40m €466 Book
Oct 21 – Oct 21 Olympic Air · 3 stops · 6h 25m €574 Book

Weather in Helsinki

Wed ☀️ 15° 10° 💧0%
Thu ☁️ 13° 8° 💧14%
Fri 🌧️ 13° 7° 💧100%
Sat 🌧️ 11° 6° 💧55%
Sun 🌦️ 13° 11° 💧84%
Mon 🌦️ 12° 9° 💧63%
Tue 🌦️ 10° 5° 💧26%

In Oct, Helsinki typically sees ~10°C daytime highs and 14 rainy days.

Where to stay in Helsinki

3★+ hotels from €74/night (38 hotels sampled, ~3 weeks out).

Noli Sörnäinen hotel · Helsinki
from €74/night★ 4
Noli Katajanokka hotel · Helsinki
from €80/night★ 4
VALO Hotel & Work Helsinki hotel · Helsinki
from €87/night★ 4

Good to know

CurrencyEuro (€)
Power plugsType C/F
BorderSchengen — no passport control from Schengen countries
Time differenceSame time zone
Time in the air6h 25m

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).

Round out the trip

Popular from Kos

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 2026-10-07. Some links earn Stayonomy a commission at no cost to you.