Our cheapest offers for flights from London Heathrow to Kos

Here you can compare cheap flights from London Heathrow (LHR) to Kos (KGS) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Kos. Prices and availability may change at any time.

	Outbound	Return	Airlines	Baggage	Price
London Heathrow Kos	Outbound 17/08/26 1 Stopover (VIE) OS0340, OS0867 25h 15min	Return 15/09/26 1 Stopover (ZRH) LX8357, LX0316 13h 25min	Austrian Airlines		£235
Best option London Heathrow Kos	Outbound 04/05/26 1 Stopover (ATH) A30603, A30224 18h 00min	Return 22/05/26 1 Stopover (ATH) A30221, A30604 13h 55min	Aegean Airlines		£249
London Heathrow Kos	Outbound 17/08/26 1 Stopover (VIE) OS0340, OS0867 25h 15min	Return 15/09/26 1 Stopover (ZRH) LX8357, LX0316 13h 25min	Austrian Airlines		£238
London Heathrow Kos	Outbound 25/05/26 2 Stopovers (BEG, ATH) JU0211, JU0536, A30228 33h 05min	Return 07/06/26 1 Stopover (ATH) A30221, A30600 07h 15min	Air Serbia, Aegean Airlines	?	£284
London Heathrow Kos	Outbound 17/08/26 1 Stopover (MXP, BGY) BA0590, FR7976 15h 45min	Return 15/09/26 2 Stopovers (BGY, MXP, BCN) FR7977, VY6339, VY6650 20h 20min	British Airways, Ryanair	?	£290
London Heathrow Kos	Outbound 04/05/26 2 Stopovers (BCN, ATH) VY6653, VY8100, GQ0220 33h 15min	Return 22/05/26 1 Stopover (ATH) A30225, A30608 10h 05min	Vueling Airlines, Sky Express	?	£297
London Heathrow Kos	Outbound 25/05/26 1 Stopover (ATH) A30609, A30228 24h 20min	Return 07/06/26 1 Stopover (ATH) A30227, A30604 25h 45min	Aegean Airlines		£305
London Heathrow Kos	Outbound 25/05/26 1 Stopover (ATH) A30609, A30222 08h 35min	Return 07/06/26 1 Stopover (ATH) A30221, A30600 07h 15min	Aegean Airlines		£327
London Heathrow Kos	Outbound 08/08/26 1 Stopover (DUB) BA0832, FR9290 25h 55min	Return 31/08/26 1 Stopover (BER) FR4359, EW8464 23h 40min	British Airways, Ryanair	?	£340
London Heathrow Kos	Outbound 04/05/26 1 Stopover (ZRH) LX0345, LX8358 10h 45min	Return 22/05/26 1 Stopover (BRU) SN3244, SN2103 06h 15min	Swiss International Air Lines		£345

Important flight information

Flight information: London Heathrow - Kos

Outbound and return from	£ 234,74
Distance	2715 km
Departure airport	Airport London Heathrow (LHR)
Arrival airport	Airport Kos (KGS)
Destination country	Flights to Greece

Alternative routes to Greece

Flight London Heathrow - Kefalonia Kefallinia from £ 317
Flight London Heathrow - Athens from £ 151
Flight London Heathrow - Chania from £ 211
Flight London Heathrow - Preveza from £ 272
Flight London Heathrow - Santorini from £ 118
Flight London Heathrow - Mykonos from £ 180

Alternative flights to Kos

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