Find flights
When to book
FAQs

Cheap flights from Kos to London Heathrow Airport from £92

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
KGS — LHR
14 Sep — 21 Sep1
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 15 August 2026.

Tue 8/920:30 -
1 stop13h 25m
Sun 20/920:05 -
1 stop12h 05m
Deal found 10/8£203
Thu 24/921:10 -
1 stop13h 10m
Thu 1/1006:00 -
1 stop12h 20m
Deal found 10/8£209
Wed 19/819:55 -
1 stop14h 20m
Tue 25/808:45 -
1 stop8h 55m
Deal found 13/8£235
Thu 5/1108:25 -
1 stop11h 30m
Thu 19/1122:15 -
1 stop16h 30m
Deal found 11/8£248
Sun 27/906:00 -
1 stop7h 15m
Sun 4/1016:35 -
1 stop13h 00m
Deal found 13/8£265
Thu 5/1120:40 -
2 stops17h 40m
Thu 19/1122:15 -
1 stop7h 30m
Deal found 11/8£273
Mon 17/809:45 -
1 stop12h 55m
Mon 24/820:05 -
1 stop21h 35m
Deal found 10/8£284
Thu 24/911:00 -
2 stops12h 30m
Thu 1/1006:00 -
1 stop12h 20m
Deal found 10/8£296
Fri 14/809:20 -
1 stop10h 35m
Wed 19/816:35 -
1 stop6h 00m
Deal found 13/8£297
Fri 14/809:20 -
1 stop10h 35m
Mon 17/819:00 -
1 stop27h 35m
Deal found 13/8£298

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 15 August 2026.

Round-trip from

£203

One-way from

£92
SWISS
  • SWISS
  • 8/9-20/9
  • 2 total stops
  • 25h 30m total
  • Kos to London
Search Deals
16/9
  • 16/9
  • 2 total stops
  • 17h 00m 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 15 August 2026.
Use the filters below to find and compare flights from Kos to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Tue 8/9

20:30-07:55

1 stop13h 25m

London Heathrow

Sun 20/9

20:05-10:10

1 stop12h 05m

£203

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Thu 24/9

11:00-21:30

2 stops12h 30m

London Heathrow

Thu 1/10

06:00-20:20

1 stop12h 20m

£296

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Sun 27/9

16:30-12:30

2 stops22h 00m

London Heathrow

Sun 4/10

22:15-08:05

1 stop7h 50m

£300
Fastest return journey

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Thu 24/9

06:00-11:15

1 stop7h 15m

London Heathrow

Mon 28/9

22:15-17:35

1 stop17h 20m

£339

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Wed 23/9

18:10-11:15

1 stop19h 05m

London Heathrow

Sun 27/9

22:15-07:35

1 stop7h 20m

£339

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Tue 8/9

10:05-18:45

2 stops10h 40m

London Heathrow

Sun 20/9

08:55-10:10

2 stops23h 15m

£343
Cheapest one-way

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Sun 11/10

18:05-15:30

1 stop23h 25m

£109

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Wed 16/9

20:40-07:55

1 stop13h 15m

£140

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Tue 15/9

23:30-19:10

2 stops21h 40m

£140

KosLondon

KGS Kos - LHR London Heathrow

KGSLHR

Kos

Fri 11/9

09:20-17:55

1 stop10h 35m

£158

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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 7h 15m. Fly via SWISS or Aegean Airlines to get the fastest option. The distance from Kos to London Heathrow Airport is about 1683 mi. This flight may include one or multiple stops.

  • 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
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Southend-on-Sea
Swindon
Enfield
Kingston upon Thames
Southall
Poole

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.