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Cheap flights from Kos to London Heathrow Airport from £91

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
KGS — LHR
31 Oct — 7 Nov1
1 adult
1 adult, Economy

Cheap 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 1 October 2025.

Round-trip from

£196

One-way from

£91
Aegean Airlines
  • Aegean Airlines
  • 14/11-20/11
  • 2 total stops
  • 41h 40m total
  • Kos to London
Search Deals
Aegean Airlines
  • Aegean Airlines
  • 3/12
  • 1 total stop
  • 23h 20m total
  • Kos to London
Search Deals

Find flight deals from Kos to Heathrow

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 1 October 2025.

Fri 14/1120:40KGS - LHR
1 stop26h 35mAegean Airlines
Thu 20/1119:00LHR - KGS
1 stop15h 05mAegean Airlines
Deal found 30/9£196
Thu 13/1112:35KGS - LHR
1 stop7h 20mAegean Airlines
Thu 20/1119:00LHR - KGS
1 stop15h 05mAegean Airlines
Deal found 29/9£210
Tue 28/1009:25KGS - LHR
1 stop10h 30mAegean Airlines
Tue 4/1119:00LHR - KGS
1 stop15h 05mAegean Airlines
Deal found 30/9£240
Tue 28/1008:35KGS - LHR
1 stop14h 40mMultiple Airlines
Tue 4/1119:30LHR - KGS
2 stops20h 30mMultiple Airlines
Deal found 30/9£289
Thu 13/1108:35KGS - LHR
1 stop11h 20mMultiple Airlines
Thu 20/1117:10LHR - KGS
2 stops16h 55mMultiple Airlines
Deal found 29/9£292
Tue 14/1006:00KGS - LHR
1 stop11h 30mAegean Airlines
Tue 14/1019:00LHR - KGS
1 stop13h 55mAegean Airlines
Deal found 30/9£298
Fri 14/1120:40KGS - LHR
1 stop26h 35mMultiple Airlines
Thu 20/1117:50LHR - KGS
2 stops20h 40mMultiple Airlines
Deal found 30/9£306

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 1 October 2025.
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

Fri 14/11

20:40-21:15

1 stop26h 35m

London Heathrow

Thu 20/11

19:00-12:05

1 stop15h 05m

£196

KosLondon

KGS - LHR

KGSLHR

Kos

Thu 13/11

12:35-17:55

1 stop7h 20m

London Heathrow

Thu 20/11

19:00-12:05

1 stop15h 05m

£210

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 28/10

09:25-17:55

1 stop10h 30m

London Heathrow

Tue 4/11

19:00-12:05

1 stop15h 05m

£240

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 14/10

06:00-15:30

1 stop11h 30m

London Heathrow

Tue 14/10

19:00-10:55

1 stop13h 55m

£298

KosLondon

KGS - LHR

KGSLHR

Kos

Fri 14/11

20:40-21:15

1 stop26h 35m

London Heathrow

Thu 20/11

17:50-16:30

2 stops20h 40m

£306

KosLondon

KGS - LHR

KGSLHR

Kos

Thu 13/11

20:40-17:05

2 stops22h 25m

London Heathrow

Thu 20/11

08:30-20:05

2 stops9h 35m

£337

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 14/10

06:00-17:05

2 stops13h 05m

London Heathrow

Tue 14/10

20:05-23:55

2 stops25h 50m

£452

KosLondon

KGS - LHR

KGSLHR

Kos

Thu 4/12

08:35-17:55

1 stop11h 20m

£95

KosLondon

KGS - LHR

KGSLHR

Kos

Mon 1/12

12:35-21:15

1 stop10h 40m

£95

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 2/12

08:35-15:30

1 stop8h 55m

£95

Flights are sorted by cheapest return flights first.

Deals found on 29/9

Showing 1-10 of 18 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 26h 35m. 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.

  • What is the cheapest month to book a flight from Kos to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Kos to London Heathrow Airport (average of £112). Flying from Kos to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Slough
Gatwick
Hounslow
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Swindon
Winchester
Chichester
Ipswich
Dartford
Brentford
Bishop's Stortford

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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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