Find flights
When to book
FAQs

Cheap flights from Kos to London Heathrow Airport from £110

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
KGS — LHR
15 Jul — 22 Jul1
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 June 2026.

Thu 9/721:10
KGS
-
LHR
1 stop13h 10m
Austrian Airlines
Wed 15/706:00
LHR
-
KGS
1 stop12h 50m
Austrian Airlines
Deal found 12/6£203
Tue 7/711:25
KGS
-
LHR
1 stop12h 10m
Multiple Airlines
Tue 14/719:30
LHR
-
KGS
1 stop15h 10m
Multiple Airlines
Deal found 12/6£216
Sat 12/921:25
KGS
-
LHR
1 stop12h 55m
Austrian Airlines
Thu 17/906:00
LHR
-
KGS
1 stop12h 20m
Austrian Airlines
Deal found 10/6£221
Thu 2/711:25
KGS
-
LHR
1 stop12h 10m
Multiple Airlines
Tue 7/719:30
LHR
-
KGS
1 stop15h 10m
Multiple Airlines
Deal found 10/6£232
Thu 9/721:10
KGS
-
LHR
1 stop13h 10m
Multiple Airlines
Wed 15/709:30
LHR
-
KGS
2 stops7h 35m
Multiple Airlines
Deal found 12/6£233
Sun 12/711:25
KGS
-
LHR
1 stop12h 10m
Multiple Airlines
Sun 19/707:30
LHR
-
KGS
2 stops26h 15m
Multiple Airlines
Deal found 14/6£262
Sun 5/711:25
KGS
-
LHR
1 stop7h 40m
Multiple Airlines
Sun 12/719:30
LHR
-
KGS
1 stop11h 25m
Multiple Airlines
Deal found 14/6£264
Tue 16/619:15
KGS
-
LHR
1 stop15h 00m
Multiple Airlines
Tue 23/620:25
LHR
-
KGS
1 stop11h 05m
Multiple Airlines
Deal found 14/6£265
Tue 30/610:05
KGS
-
LHR
1 stop24h 15m
Austrian Airlines
Thu 2/706:00
LHR
-
KGS
1 stop12h 20m
Austrian Airlines
Deal found 10/6£272
Sat 12/921:25
KGS
-
LHR
2 stops16h 05m
Multiple Airlines
Thu 17/906:00
LHR
-
KGS
1 stop12h 20m
Multiple Airlines
Deal found 10/6£306
Sun 13/913:40
KGS
-
LHR
1 stop7h 05m
Eurowings
Fri 18/909:10
LHR
-
KGS
1 stop9h 00m
Eurowings
Deal found 10/6£307

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 June 2026.

Round-trip from

£203

One-way from

£110
Austrian Airlines
  • Austrian Airlines
  • 9/7-15/7
  • 2 total stops
  • 26h 00m total
  • Kos to London
Search Deals
2/9
  • 2/9
  • 1 total stop
  • 21h 05m 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 June 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 - LHR

KGSLHR

Kos

Sun 12/7

11:25-21:35

1 stop12h 10m

London Heathrow

Sun 19/7

07:30-11:45

2 stops26h 15m

£262

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 30/6

10:05-08:20

1 stop24h 15m

London Heathrow

Thu 2/7

20:25-08:50

2 stops34h 25m

£317
Fastest return journey

KosLondon

KGS - LHR

KGSLHR

Kos

Thu 13/8

06:00-15:30

1 stop11h 30m

London Heathrow

Thu 3/9

16:35-00:35

1 stop6h 00m

£330
Cheapest one-way

KosLondon

KGS - LHR

KGSLHR

Kos

Wed 26/8

11:25-18:05

1 stop8h 40m

£114

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 1/9

20:05-08:05

1 stop14h 00m

£129

KosLondon

KGS - LHR

KGSLHR

Kos

Fri 4/9

10:00-20:55

2 stops12h 55m

£133

KosLondon

KGS - LHR

KGSLHR

Kos

Tue 30/6

14:50-14:15

2 stops25h 25m

£138

KosLondon

KGS - LHR

KGSLHR

Kos

Thu 27/8

16:40-18:05

1 stop27h 25m

£139
Fastest single journey

KosLondon

KGS - LHR

KGSLHR

Kos

Thu 10/9

06:00-11:15

1 stop7h 15m

£141

KosLondon

KGS - LHR

KGSLHR

Kos

Fri 11/9

09:20-17:55

1 stop10h 35m

£141

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 13 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.

  • 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
Wembley
Luton
Gatwick
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Eastbourne
Watford
Swindon
Ipswich
Poole
Guildford
Romford

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.