Cheap Flights from Kos (KGS) to Barcelona (BCN)

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Flight deals from Kos Airport to Barcelona Airport

Looking for a cheap last-minute deal or the best return flight from Kos Airport to Barcelona Airport? If you want to travel next month, return fares start from £148. Find the lowest prices on one-way and return tickets right here.

Is this a good flight price? We’ll tell you.We compare today’s Kos Airport to Barcelona Airport prices with what travellers usually pay, so you can see if now’s a good time to book, or if it’s worth waiting.

Barcelona.£118 per passenger.Departing Sat, 6 Jun, returning Wed, 10 Jun.Return flight with Ryanair.Outbound indirect flight with Ryanair, departs from Kos on Sat, 6 Jun, arriving in Barcelona.Inbound indirect flight with Ryanair, departs from Barcelona on Wed, 10 Jun, arriving in Kos.Price includes taxes and charges.From £118, select.

Barcelona.£142 per passenger.Departing Sat, 11 Jul, returning Wed, 15 Jul.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Kos on Sat, 11 Jul, arriving in Barcelona.Inbound indirect flight with Lufthansa, departs from Barcelona on Wed, 15 Jul, arriving in Kos.Price includes taxes and charges.From £142, select.

Barcelona.£143 per passenger.Departing Mon, 29 Jun, returning Fri, 3 Jul.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Kos on Mon, 29 Jun, arriving in Barcelona.Inbound indirect flight with Lufthansa, departs from Barcelona on Fri, 3 Jul, arriving in Kos.Price includes taxes and charges.From £143, select.

Barcelona.£148 per passenger.Departing Mon, 20 Apr, returning Sat, 25 Apr.Return flight with easyJet and Ryanair.Outbound indirect flight with easyJet, departs from Kos on Mon, 20 Apr, arriving in Barcelona.Inbound indirect flight with Ryanair, departs from Barcelona on Sat, 25 Apr, arriving in Kos.Price includes taxes and charges.From £148, select.

Barcelona.£158 per passenger.Departing Mon, 27 Apr, returning Sun, 3 May.Return flight with easyJet and Ryanair.Outbound indirect flight with easyJet, departs from Kos on Mon, 27 Apr, arriving in Barcelona.Inbound indirect flight with Ryanair, departs from Barcelona on Sun, 3 May, arriving in Kos.Price includes taxes and charges.From £158, select.

Barcelona.£179 per passenger.Departing Sat, 1 Aug, returning Sat, 8 Aug.Return flight with Brussels Airlines.Outbound indirect flight with Brussels Airlines, departs from Kos on Sat, 1 Aug, arriving in Barcelona.Inbound indirect flight with Brussels Airlines, departs from Barcelona on Sat, 8 Aug, arriving in Kos.Price includes taxes and charges.From £179, select.

Barcelona.£182 per passenger.Departing Fri, 1 May, returning Mon, 4 May.Return flight with Brussels Airlines and Aegean Airlines.Outbound indirect flight with Brussels Airlines, departs from Kos on Fri, 1 May, arriving in Barcelona.Inbound indirect flight with Aegean Airlines, departs from Barcelona on Mon, 4 May, arriving in Kos.Price includes taxes and charges.From £182, select.

Barcelona.£203 per passenger.Departing Thu, 27 Aug, returning Fri, 4 Sep.Return flight with Brussels Airlines.Outbound indirect flight with Brussels Airlines, departs from Kos on Thu, 27 Aug, arriving in Barcelona.Inbound indirect flight with Brussels Airlines, departs from Barcelona on Fri, 4 Sep, arriving in Kos.Price includes taxes and charges.From £203, select.

Barcelona.£229 per passenger.Departing Tue, 1 Sep, returning Tue, 8 Sep.Return flight with Aegean Airlines and Ryanair.Outbound indirect flight with Aegean Airlines, departs from Kos on Tue, 1 Sep, arriving in Barcelona.Inbound indirect flight with Ryanair, departs from Barcelona on Tue, 8 Sep, arriving in Kos.Price includes taxes and charges.From £229, select.

Barcelona.£443 per passenger.Departing Sat, 21 Mar, returning Tue, 24 Mar.Return flight with SKY express and easyJet.Outbound indirect flight with SKY express, departs from Kos on Sat, 21 Mar, arriving in Barcelona.Inbound indirect flight with easyJet, departs from Barcelona on Tue, 24 Mar, arriving in Kos.Price includes taxes and charges.From £443, select.

Find the cheapest month to fly from Kos to Barcelona

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

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Kos to Barcelona: Alternative routes

Compare routes from Kos to Barcelona below. You may find an airport to fly into that's cheaper, faster, or easier than Barcelona.

Kos to Barcelona: Flight information

The things to know before you go.

Cheapest flight found	£118
Cheapest month to fly	June

Finding cheap flights from Kos to Barcelona: Frequently asked questions

How much are return flights from Kos to Barcelona?

The best price we found for a return flight from Kos to Barcelona is £118. 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.

Which airlines fly direct from Kos to Barcelona?

Currently, there are no airlines that fly direct from Kos to Barcelona. But we found flights with one or more stops from £118.

How many flights are there a week from Kos to Barcelona?

As of March 2026, there are no flights flying from Kos to Barcelona.

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

The cheapest month to fly from Kos to Barcelona is usually June.

Which upcoming date is cheapest to fly from Kos Airport to Barcelona Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kos Airport to Barcelona Airport on Saturday, 6 June 2026.

Can I get a direct flight from Kos Airport to Barcelona Airport?

No airlines currently offer direct flights between Kos Airport and Barcelona Airport. Most routes have one or more stops.

How can I find the best flight deal to Barcelona?

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 Barcelona 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.

When is the best time to book flights to Barcelona?

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

Which is the cheapest airline to fly from Kos Airport to Barcelona with?

Currently, Ryanair offers the cheapest flight tickets to Barcelona.

Travelling from Kos Airport (KGS) to Barcelona-El Prat Airport (BCN): what you need to know

Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Get to the airport on time to board your KGS to BCN flight.
During popular months such as August, you'll want to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're flying during a peak period in general.
If you want to add a stop to your trip, simply deselect 'Direct flights only' when searching for your ticket from Kos Airport to Barcelona-El Prat Airport. These are the top stopovers between KGS and BCN:
- Eleftherios Venizelos International Airport
- Vienna International Airport
- Thessaloniki International Airport

How to find the cheapest flights from Kos Airport (KGS) to Barcelona-El Prat Airport (BCN)

Right now, £43 is the lowest price we've found for a one-way Kos Airport to Barcelona-El Prat Airport flight. The best price for a return plane ticket is £118. Keep in mind that fares may change due to demand when booking.
It's usually smart to book as early as possible if you're hoping to get cheap tickets from KGS to BCN. That's because flight prices are based on demand, which tends to increase closer to the date of departure.
If you're willing to be flexible with your travel plans, try using the 'Whole month' search function. It'll find the lowest price in each month when looking for your flight from Kos Airport to Barcelona-El Prat Airport.
Save time looking for cheap flights from KGS to BCN by creating a Price Alert. We'll send you an email or notification through the app when a lower fare becomes available.
Pick your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Kos Airport to Barcelona-El Prat Airport.

Handy information about Kos Airport (KGS)

Kos Airport earns top marks for its on-time performance. 89.58% of flights that take off from KGS arrive at their destination without delay.

Arriving at Barcelona-El Prat Airport (BCN)

If you're arriving on a late Kos Airport to Barcelona-El Prat Airport flight, nothing beats the convenience of being near the terminal. Grab your bags from the carousel and then be showered and sleeping soon after at one of these accommodation options near BCN:
Hit the road running by picking up a Barcelona-El Prat Airport rental car. Grab a set of wheels from Record Go, Goldcar or Nizacars Rent A Car and experience the lesser-explored corners of Barcelona and beyond.
Reserving your vehicle from Barcelona-El Prat Airport around four weeks ahead boosts your odds of scoring a great price.

Getting from Barcelona-El Prat Airport (BCN) to central Barcelona

From Barcelona-El Prat Airport, Barcelona is approximately 11 miles away. It takes around 25 minutes to reach the centre driving.
It'll take around 35 minutes when travelling by public transport.

When to fly to Barcelona-El Prat Airport (BCN)

It's time to choose your travel dates for your flight from Kos Airport to Barcelona-El Prat Airport. July is the most popular month to visit Barcelona. If you prefer a more relaxed vibe, go in January.
The warmest month in Barcelona is August, with the temperature ranging between 20ºC (68ºF) and 31ºC (88ºF). Book your flights from Kos Airport to Barcelona-El Prat Airport in this month if you like this kind of weather.
January has average temperatures of between 5ºC (41ºF) and 14ºC (57ºF). Look for cheap tickets from KGS to BCN sometime around then if you want to travel when it's cooler.

Explore more of Spain

Zaragoza is just one of the many places in Spain waiting to be discovered once you've taken in the sights of Barcelona. Around 160 miles away to the west, top sights here include Puente de Piedra, Museo Pablo Gargallo and El Tubo.
If you're looking to explore another side of Spain, head for Logroño, about 250 miles west of Barcelona. Concatedral de Santa Maria de la Redonda, Museo de la Rioja and Iglesia de Santiago el Real are key highlights.