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
Best option London Heathrow Kos	Outbound 22/12/25 1 Stopover (ATH) A30605, A30220 11h 05min	Return 10/01/26 1 Stopover (ATH) A30225, A30608 06h 35min	Aegean Airlines		£260
London Heathrow Kos	Outbound 22/12/25 2 Stopovers (FRA, ATH) LH0911, LH1284, A30220 13h 35min	Return 10/01/26 2 Stopovers (ATH, MUC) A30227, LH1757, LH4200 25h 00min	Lufthansa, Aegean Airlines		£311
London Heathrow Kos	Outbound 22/12/25 1 Stopover (ATH) A30605, A30222 15h 05min	Return 10/01/26 1 Stopover (ATH) A30227, A30600 16h 35min	Aegean Airlines		£271
London Heathrow Kos	Outbound 22/12/25 1 Stopover (ATH) A30605, A30220 11h 05min	Return 10/01/26 1 Stopover (ATH) A30221, A30608 14h 40min	Aegean Airlines		£285
London Heathrow Kos	Outbound 20/03/26 2 Stopovers (MXP, ATH) BA0588, GQ0831, GQ0220 42h 20min	Return 17/04/26 2 Stopovers (ATH, BEG) A30221, A30976, JU0210 32h 35min	British Airways, Sky Express	?	£288
London Heathrow Kos	Outbound 20/03/26 1 Stopover (ATH) A30609, A30222 11h 50min	Return 17/04/26 1 Stopover (ATH) A30225, A30608 10h 05min	Aegean Airlines		£289
London Heathrow Kos	Outbound 20/03/26 1 Stopover (ATH) A30609, A30222 11h 50min	Return 17/04/26 1 Stopover (ATH) A30225, A30608 10h 05min	Aegean Airlines	?	£295
London Heathrow Kos	Outbound 22/12/25 2 Stopovers (ARN, ATH) SK1530, SK2933, A30222 27h 25min	Return 10/01/26 2 Stopovers (ATH, WAW) A30227, A30870, BA0849 27h 05min	SAS Scandinavian Airlines, Aegean Airlines	?	£304
London Heathrow Kos	Outbound 22/12/25 1 Stopover (ATH) A30609, A30220 07h 50min	Return 10/01/26 1 Stopover (ATH) A30225, A30608 06h 35min	Aegean Airlines		£368
London Heathrow Kos	Outbound 22/12/25 2 Stopovers (MUC, ATH) LH4203, LH5916, A30226 11h 30min	Return 10/01/26 2 Stopovers (ATH, ZRH) A30223, LX1839, LX0340 11h 05min	Lufthansa, Aegean Airlines	?	£429

Important flight information

Flight information: London Heathrow - Kos

Outbound and return from	259,97 £
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 - Athens from 125 £
Flight London Heathrow - Kefalonia Kefallinia from 312 £
Flight London Heathrow - Chania from 234 £
Flight London Heathrow - Preveza from 302 £
Flight London Heathrow - Santorini from 163 £
Flight London Heathrow - Mykonos from 272 £

Alternative flights to Kos

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