C$129 Cheap Flights from Helsinki Vantaa (HEL) to Kos (KGS)

Compare Helsinki Vantaa to Kos flight deals

Find the cheapest month or even day of the year to fly to Kos

Book the best Kos fare with no extra fees

Flight deals from Helsinki Vantaa to Kos

Looking for a cheap last-minute deal or the best return flight from Helsinki Vantaa Airport to Kos Airport? If you want to travel next month, return fares start from C$419. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Helsinki Vantaa to Kos

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Helsinki Vantaa to Kos flights are currently cheapest in September.

Which airlines fly from Helsinki Vantaa to Kos?

Helsinki to Kos: Flight information

The things to know before you go.
Cheapest flight foundC$129
Cheapest month to flySeptember
Average flight time3 hrs, 48 mins
Most popular airlineFinnair
Average flights per week3

Finding cheap flights from Helsinki Vantaa to Kos: Frequently asked questions

The best price we found for a return flight from Helsinki Vantaa to Kos is C$217. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 48 minutes is the average flight time from Helsinki Vantaa to Kos.
Finnair and Sunclass Airlines fly direct from Helsinki Vantaa to Kos.
As of July 2026, there are 3 flights per week flying from Helsinki Vantaa to Kos.
The cheapest month to fly from Helsinki Vantaa to Kos is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Helsinki Vantaa Airport to Kos Airport on Wednesday, September 16, 2026.
Yes – the average flight time is 3 hours and 48 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kos but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kos is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Ryanair and Finnair offer the cheapest flight tickets to Kos.

Traveling from Helsinki-Vantaa Airport (HEL) to Kos Airport (KGS): what you need to know

  • Planning to travel during a peak time like public or school holidays? Expect longer lines at check-in and security. To give yourself peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

  • We make it simple to get a flight with a stopover. To look at your options for flights from Helsinki-Vantaa Airport to Kos Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to explore the city of your choice. Popular stopovers between HEL and KGS are:

    • Eleftherios Venizelos International Airport

    • Berlin Brandenburg Airport

    • Hamburg Airport

How to find the cheapest flights from Helsinki-Vantaa Airport (HEL) to Kos Airport (KGS)

  • The best price we've seen for a one-way ticket from Helsinki-Vantaa Airport to Kos Airport is C$129. The cheapest price for a return flight is C$217. Keep in mind that fares can change due to availability when booking.

  • It's usually smart to book in advance if you want to find cheap flight tickets from HEL to KGS. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.

  • Getting cheap flight tickets from Helsinki-Vantaa Airport to Kos Airport is easier if you can be flexible with your travel dates. Try using the 'Whole month' search tool to see the lowest fares across every month and snap up a great deal.

  • Create a Price Alert for cheap flight tickets from HEL to KGS. You don't need to search every day to see if prices have dropped. We'll tell you when there's a change in price.

  • Tailor your flights using filters. Pick your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Helsinki-Vantaa Airport to Kos Airport.

Handy information about Helsinki-Vantaa Airport (HEL)

  • Helsinki-Vantaa Airport is around 19 kilometres from central Helsinki. If you're ride-sharing, catching a cab or driving from the center, it'll take you 29 minutes or so to get there, depending on the traffic. If you're using public transport, expect the trip time to be around 44 minutes.

  • After a leisurely start to your trip? Stay near HEL. Whether you're on an early flight from Helsinki-Vantaa Airport to Kos Airport or just don't like being rushed, these stays are just the thing:

Arriving at Kos Airport (KGS)

  • If you're coming in on a late flight from Helsinki-Vantaa Airport to Kos Airport, few things beat the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and sleeping not long after at one of these options near KGS:

Getting from Kos Airport (KGS) to central Greece

  • Kos Airport is about 434 kilometres from central Greece. How long it takes to get there in a cab or car rental will depend on the time of day. Do some research before your trip.

When to fly to Kos Airport (KGS)

  • The quietest month for a flight from Helsinki-Vantaa Airport to Kos Airport is February, while August is the most popular. Pick the ideal time to visit Greece based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When booking your flight from Helsinki-Vantaa Airport to Kos Airport, consider the kind of weather you enjoy. July is the warmest month in Greece, with temperatures ranging from 22ºC to 33ºC.

  • If you like cooler conditions, look for a cheap ticket from HEL to KGS in January. Temperatures average between 2ºC and 13ºC then.

More about Greece

  • Start your Greece trip right by finding a great place to stay. After booking your flight from HEL to KGS, have a look at our range of hotel options including:

  • Agios Panteleimonas and Κύμα - Kyma - The wave are a couple of top-rated attractions to put on your Greece must-do list. Keep the momentum going by heading to Τρείς μώλοι / Three piers beach.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.