Cheap flights from Kos to Barcelona

One-way fares from €105 · KGS → BCN · prices found by travellers in the last 48 hours

Cheapest fare
€105

Sky Express Greece · Thu, Sep 9

Cheapest month
September

from €105

Direct flights
Not recently

Usually 1+ stop

Quickest trip
4h 15m

2,200 km

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Cheapest month to fly from Kos to Barcelona

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 €129
  2. September 2027 Cheapest €105
  3. October 2027 €167

Cheapest dates in September 2027

The lowest fares we've seen for each day, cheapest first.

Sky Express Greece
Depart16:30 Thu, Sep 9KGS → BCN 4h 15m · 1 stop
€105one way, per person
View deal
Ryanair
Depart15:50 Wed, Sep 8KGS → BCN 4h 35m · 1 stop
€131one way, per person
View deal
Aegean Airlines
Depart06:00 Fri, Sep 10KGS → BCN 5h 15m · 2 stops
€152one way, per person
View deal
See every date in September 2027 →

Plan the rest of your trip to Barcelona

Where to stay, what to do and getting around, from our travel partners.

About flights from Kos to Barcelona

Kos (KGS) and Barcelona (BCN) are about 2,200 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 15m. Over the next few months, one-way fares start from €105, and September 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Kos to Barcelona?

The cheapest one-way fare we've seen recently is €105 with Sky Express Greece, departing Thursday, September 9, 2027. Over the coming months, the lowest fare in each month ranges from €105 to €167.

What is the cheapest month to fly from Kos to Barcelona?

September 2027 currently has the lowest fares, from €105 one way.

Are there direct flights from Kos to Barcelona?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Kos to Barcelona?

The quickest journey we've seen takes about 4h 15m. Kos and Barcelona are around 2,200 km apart.

Which airlines fly from Kos to Barcelona?

Recent fares on this route were with Aegean Airlines, Sky Express Greece, Olympic Air and Ryanair.

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