The rocky islet of Kastri with its small chapel in clear sea off Kos

Cheap flights to Kos

Return fares to Kos from 3 UK airports in the next 12 months, from £287.

Cheapest fare to Kos from each UK airport

2–14 nights, direct or with one stop, cheapest first.

From London Heathrow to Kos (KGS)
Fri 20 Aug – Fri 3 Sept · 14 nights · 1 stop
£287
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From London Stansted to Kos (KGS)
Fri 20 Aug – Fri 3 Sept · 14 nights · 1 stop
£342
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From London City to Kos (KGS)
Fri 20 Aug – Fri 3 Sept · 14 nights · 1 stop
£401
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Prices are return fares for one adult, found by Aviasales users in the last few days and cached; they can change at any time, and the final price and availability are on Aviasales. Checked bags are extra unless the airline includes them. We may earn a commission when you book through our links; it does not change your price.