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

Cheap flights from London Heathrow to Kos

Return fares from £287 in the next 12 months. Pick a day in the calendar to see the fare.

Cheapest return: £287
Typical return: £287
Cheapest one way: –
Cheapest month: August

Price calendar

Cheapest return fare by departure day, 2–14 nights, direct or with one stop. Green days are the cheapest of the month.

Cheapest return fare per departure day, August 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
						1–
2–	3–	4–	5–	6–	7–	8–
9–	10–	11–	12–	13–	14–	15–
16–	17–	18–	19–	20£287 return, back 3 Sept	21–	22–
23–	24–	25–	26–	27–	28–	29–
30–	31–

Cheapest dates

Fri 20 Aug – Fri 3 Sept · 14 nights
Brussels Airlines · 1 stop
£287Check price ↗

London Heathrow to Kos: questions

How much is a flight from London Heathrow to Kos?: In the fares we found for the next 12 months, return flights start at £287 and the median is £287 (1 fare, 2–14 nights, 1 adult).
Are there direct flights from London Heathrow to Kos?: Not in the fares we found: they all have a stop.
Which airlines fly from London Heathrow to Kos?: In our fares: Brussels Airlines.

More flights from London Heathrow

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.