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Cheap flights from Kos to London Heathrow Airport from £109

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
KGS — LHR
15 Mar — 22 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kos to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Kos to Heathrow
Explore the most affordable flight options available from Kos to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 February 2026.

Sun 29/309:20
KGS
-
LHR
1 stop8h 10m
Aegean Airlines
Sun 5/419:00
LHR
-
KGS
1 stop15h 35m
Aegean Airlines
Deal found 11/2£215
Tue 10/312:35
KGS
-
LHR
1 stop7h 20m
Aegean Airlines
Tue 17/322:15
LHR
-
KGS
1 stop7h 50m
Aegean Airlines
Deal found 9/2£229
Tue 10/320:35
KGS
-
LHR
2 stops16h 40m
Multiple Airlines
Tue 17/317:10
LHR
-
KGS
2 stops12h 55m
Multiple Airlines
Deal found 9/2£251
Sun 29/322:25
KGS
-
LHR
2 stops12h 45m
Multiple Airlines
Sun 5/422:15
LHR
-
KGS
1 stop8h 35m
Multiple Airlines
Deal found 11/2£277
Wed 22/409:20
KGS
-
LHR
1 stop8h 10m
Aegean Airlines
Sat 25/412:15
LHR
-
KGS
1 stop10h 20m
Aegean Airlines
Deal found 9/2£332
Thu 13/812:35
KGS
-
LHR
1 stop10h 35m
Aegean Airlines
Thu 3/912:15
LHR
-
KGS
1 stop10h 20m
Aegean Airlines
Deal found 12/2£384

Find flight deals from Kos to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Kos (KGS) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 February 2026.

Round-trip from

£215

One-way from

£109
Aegean Airlines
  • Aegean Airlines
  • 29/3-5/4
  • 2 total stops
  • 23h 45m total
  • Kos to London
Search Deals
16/5
  • 16/5
  • 2 total stops
  • 22h 15m total
  • Kos to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Kos to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 February 2026.
Use the filters below to find and compare flights from Kos to London Heathrow Airport that are best for you.

Fly from

Kos

Fly to

Heathrow

Route

Depart

Return

Price

KosLondon

KGS - LHR

KGSLHR

Kos

Sun 29/3

09:20-15:30

1 stop8h 10m

London Heathrow

Sun 5/4

19:00-12:35

1 stop15h 35m

£215

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 10/3

20:35-11:15

2 stops16h 40m

London Heathrow

Tue 17/3

17:10-08:05

2 stops12h 55m

£251

KosLondon

KGS - LHR

KGSLHR

Kos

Sun 29/3

22:25-09:10

2 stops12h 45m

London Heathrow

Sun 5/4

22:15-08:50

1 stop8h 35m

£277

KosLondon

KGS - LHR

KGSLHR

Kos

Wed 22/4

09:20-15:30

1 stop8h 10m

London Heathrow

Sat 25/4

12:15-00:35

1 stop10h 20m

£332

KosLondon

KGS - LHR

KGSLHR

Kos

Sat 16/5

22:25-18:40

2 stops22h 15m

£109

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 30/6

11:25-17:05

1 stop7h 40m

£118

KosLondon

KGS - LHR

KGSLHR

Kos

Sun 17/5

18:05-17:55

1 stop25h 50m

£118

KosLondon

KGS - LHR

KGSLHR

Kos

Sat 16/5

06:00-21:10

1 stop17h 10m

£118

KosLondon

KGS - LHR

KGSLHR

Kos

Sun 17/5

13:05-12:30

2 stops25h 25m

£122

KosLondon

KGS - LHR

KGSLHR

Kos

Fri 10/7

18:10-11:15

1 stop19h 05m

£128

Flights are sorted by cheapest return flights first.

Deals found on 12/2

Showing 1-10 of 16 results
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Best time to book a flight from Kos to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Kos with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Kos to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Kos to London Heathrow?

    Located just 12.8 mi from the city center, Kos is the airport most travelers will use when flying to London Heathrow from Kos. Booking flights from Kos (KGS) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

  • How long is the flight from Kos to London Heathrow Airport?

    There are many flights that can get you from Kos to London Heathrow Airport in 8h 10m. Fly via Aegean Airlines to get the fastest option. The distance from Kos to London Heathrow Airport is about 1683 mi.

  • Can I find deals for flights from Kos to Heathrow that include hotel bookings?

    Yes. In addition to deals on Kos to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Kos to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kos to Heathrow.

  • Can I find deals for business class flights from Kos to Heathrow?

    Yes. Cheapflights offers flight deals from Kos to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Ipswich
Swindon

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How does Cheapflights help users find flights from Kos to Heathrow?

When you search for this flight from Kos to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Kos to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Kos to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Kos to Heathrow with no change fees?

Yes, we can. To see specific flights from Kos to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Kos to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Kos today and book when prices fit your budget.

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