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Cheap Flights from Brussels to Kos

Travelers and cabin class

Compare Brussels 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 Brussels to Kos

Looking for a cheap last-minute deal or the best round-trip flight from Brussels to Kos? Find the lowest prices on one-way and round-trip tickets right here.
Kos.66 € per passenger.Departing Wed, Jun 25.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departing from Brussels S. Charleroi on Wed, Jun 25, arriving in Kos.Price includes taxes and charges.From 66 €, select.
Kos.73 € per passenger.Departing Mon, Aug 25.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departing from Brussels S. Charleroi on Mon, Aug 25, arriving in Kos.Price includes taxes and charges.From 73 €, select.
Kos.82 € per passenger.Departing Sat, Sep 27.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departing from Brussels S. Charleroi on Sat, Sep 27, arriving in Kos.Price includes taxes and charges.From 82 €, select.
Kos.98 € per passenger.Departing Tue, Jul 1.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departing from Brussels S. Charleroi on Tue, Jul 1, arriving in Kos.Price includes taxes and charges.From 98 €, select.
Kos.102 € per passenger.Departing Tue, May 6.One-way flight with Tuifly.be.Outbound direct flight with Tuifly.be departing from Brussels International on Tue, May 6, arriving in Kos.Price includes taxes and charges.From 102 €, select.
Kos.107 € per passenger.Departing Fri, Jun 13.One-way flight with Tuifly.be.Outbound direct flight with Tuifly.be departing from Brussels International on Fri, Jun 13, arriving in Kos.Price includes taxes and charges.From 107 €, select.
Kos.108 € per passenger.Departing Fri, Oct 3.One-way flight with Brussels Airlines.Outbound direct flight with Brussels Airlines departing from Brussels International on Fri, Oct 3, arriving in Kos.Price includes taxes and charges.From 108 €, select.
Kos.108 € per passenger.Departing Sat, Sep 27.One-way flight with Brussels Airlines.Outbound direct flight with Brussels Airlines departing from Brussels International on Sat, Sep 27, arriving in Kos.Price includes taxes and charges.From 108 €, select.

When is the cheapest time to fly from Brussels to Kos?

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Brussels to Kos flights are currently cheapest in June.
Apr
from 110 €
May
from 102 €
Jun
from 66 €
Jul
from 98 €
Aug
from 73 €
Sep
from 82 €
Oct
from 108 €
Nov
from 140 €
Dec
from 275 €
Jan
Find prices
Feb
from 140 €
Mar
Find prices

Direct flights from Brussels to Kos

Brussels to Kos: Flight information

The things to know before you go.
Cheapest flight found66 €
Cheapest month to flyJune
Average flight time3 hrs, 38 mins
Most popular airlineTuifly.be
Average flights per week10

Finding cheap flights from Brussels to Kos: Frequently asked questions

The best price we found for a round-trip flight from Brussels to Kos is 141 €. 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 38 minutes is the average flight time from Brussels to Kos.
Tuifly.be, Fly2Sky and Brussels Airlines fly direct from Brussels to Kos.
There are 10 flights per week flying from Brussels to Kos, as of April 2025.
The cheapest month to fly from Brussels to Kos is usually April 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Brussels to Kos Airport on Sunday, June 1, 2025.
Yes – the average flight time is 3 hours and 38 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.

How to find cheap flights to Kos from Brussels

Looking for cheap tickets from Brussels to Kos? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit "search." From Delta Air Lines to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Brussels to Kos. And with us, there are no hidden fees – what you see is what you pay.
  • Compare flight deals to Kos from Brussels from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
  • Flex your dates to find the best Brussels–Kos ticket prices. If you're flexible when it comes to your travel dates, use Skyscanner's "Whole month" tool to find the cheapest month, and even day to fly to Kos from Brussels.
  • Set up a Price Alert. You can easily track the fare of your cheap Brussels–Kos flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Brussels and Kos? Make sure to tick "Direct flights only" when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business Class flights from Brussels and Kos. We scour the Internet for the best Business, Premium Economy and First Class flight fares to Kos, too. Check the difference in price as you search – you might just stumble on a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Brussels to Kos flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save the next time you travel.

    • Combine your flight to Kos from Brussels with hotels and car rental

    Once you've secured your cheap flight ticket from Brussels to Kos, discover the best prices and exclusive rates for hotels in Kos or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.


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Plan the rest of your trip from Brussels to Kos

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.