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Cheap flights from Kos to London Heathrow Airport from £89

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 13/10. Fares are subject to change and may not be available on all flights or dates of travel.
KGS — LHR
21 Aug — 28 Aug1
1 adult

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 16 August 2025.

Round-trip from

£177

One-way from

£89
Austrian Airlines
  • Austrian Airlines
  • 29/9-6/10
  • 2 total stops
  • 25h 30m total
  • Kos to London
Search Deals
Aegean Airlines
  • Aegean Airlines
  • 13/10
  • 1 total stop
  • 17h 10m 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 16 August 2025.

Mon 29/920:50KGS - LHR
1 stop13h 30mAustrian Airlines
Mon 6/1006:00LHR - KGS
1 stop12h 00mAustrian Airlines
Deal found 15/8£177
Sun 28/918:10KGS - LHR
1 stop19h 05mAegean Airlines
Sun 5/1022:15LHR - KGS
1 stop23h 40mAegean Airlines
Deal found 14/8£243
Mon 15/914:15KGS - LHR
2 stops29h 40mAegean Airlines
Sun 21/922:15LHR - KGS
1 stop10h 30mAegean Airlines
Deal found 14/8£272
Mon 29/912:40KGS - LHR
2 stops11h 30mMultiple Airlines
Mon 6/1006:00LHR - KGS
1 stop12h 00mMultiple Airlines
Deal found 15/8£282
Mon 15/910:45KGS - LHR
1 stop9h 20mMultiple Airlines
Sun 21/922:15LHR - KGS
1 stop10h 30mMultiple Airlines
Deal found 14/8£288
Sun 28/921:25KGS - LHR
2 stops22h 15mMultiple Airlines
Sun 5/1007:50LHR - KGS
1 stop10h 45mMultiple Airlines
Deal found 14/8£289
Sun 14/918:10KGS - LHR
1 stop25h 45mAegean Airlines
Sun 21/922:15LHR - KGS
1 stop10h 30mAegean Airlines
Deal found 15/8£297
Sat 16/816:25KGS - LHR
1 stop7h 15mMultiple Airlines
Sun 17/806:00LHR - KGS
1 stop13h 00mMultiple Airlines
Deal found 16/8£428

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 16 August 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

Mon 29/9

20:50-08:20

1 stop13h 30m

London Heathrow

Mon 6/10

06:00-20:00

1 stop12h 00m

£177

KosLondon

KGS - LHR

KGSLHR

Kos

Sun 28/9

18:10-11:15

1 stop19h 05m

London Heathrow

Sun 5/10

22:15-23:55

1 stop23h 40m

£243

KosLondon

KGS - LHR

KGSLHR

Kos

Mon 15/9

14:15-17:55

2 stops29h 40m

London Heathrow

Sun 21/9

22:15-10:45

1 stop10h 30m

£272

KosLondon

KGS - LHR

KGSLHR

Kos

Mon 29/9

12:40-22:10

2 stops11h 30m

London Heathrow

Mon 6/10

06:00-20:00

1 stop12h 00m

£282

KosLondon

KGS - LHR

KGSLHR

Kos

Mon 15/9

10:45-18:05

1 stop9h 20m

London Heathrow

Sun 21/9

22:15-10:45

1 stop10h 30m

£288

KosLondon

KGS - LHR

KGSLHR

Kos

Sun 28/9

21:25-17:40

2 stops22h 15m

London Heathrow

Sun 5/10

07:50-20:35

1 stop10h 45m

£289

KosLondon

KGS - LHR

KGSLHR

Kos

Sun 14/9

18:10-17:55

1 stop25h 45m

London Heathrow

Sun 21/9

22:15-10:45

1 stop10h 30m

£297

KosLondon

KGS - LHR

KGSLHR

Kos

Mon 13/10

06:00-21:10

1 stop17h 10m

£89

KosLondon

KGS - LHR

KGSLHR

Kos

Wed 8/10

11:25-21:10

1 stop11h 45m

£90

KosLondon

KGS - LHR

KGSLHR

Kos

Mon 15/12

12:00-21:15

1 stop11h 15m

£102

Flights are sorted by cheapest return flights first.

Deals found on 16/8

Showing 1-10 of 13 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.

  • 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?

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Ilford
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Watford
Chichester

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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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