What is the cheapest airline that flies from London Heathrow to Kos?

Aegean Airlines, Eurowings, and Lufthansa are the most popular carriers operating from London Heathrow to Kos

Which airlines fly to Kos?

Aegean Airlines, Lufthansa and British Airways are the top three most popular airlines that fly to Kos from London Heathrow Airport according to our data. Aegean Airlines is the first choice among our users, with 37% of people opting to fly with this airline when travelling to Kos. Keep in mind that there are 3 different airlines that fly to Kos on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London Heathrow Airport to Kos Airport?

Prices for flights from London Heathrow Airport to Kos Airport refresh daily.

How many operators does momondo search for flights from London Heathrow Airport to Kos Airport?

The number of operators available for flights from London Heathrow Airport to Kos Airport is 3 as of September 2025.

How old do you have to be to fly from London Heathrow Airport to Kos Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Kos Airport.

What documentation or ID do you need to fly to Kos Airport?

The required travel and health documents for your Kos Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kos Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£79 Cheap Flights from London Heathrow Airport to Kos in 2025/26

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Find the cheapest flights from London Heathrow Airport to Kos

Round-trip

One-way

Last minute

Cheap return flights

08:45 - 18:00LHR-KGS

7h 15m1 stop

18:55 - 22:55KGS-LHR

6h 00m1 stop

£122

Find Deal

Wed, 29 Oct - Wed, 5 Nov

10:25 - 20:50LHR-KGS

8h 25m1 stop

20:50 - 08:20KGS-LHR

13h 30m1 stop

£149Austrian Airlines

Find Deal

Wed, 8 Oct - Mon, 13 Oct

07:40 - 19:25LHR-KGS

9h 45m1 stop

18:55 - 22:55KGS-LHR

6h 00m1 stop

£152Lufthansa

Find Deal

Sat, 1 Nov - Wed, 5 Nov

08:30 - 18:00LHR-KGS

7h 30m2 stops

18:55 - 22:55KGS-LHR

6h 00m1 stop

£166Lufthansa

Find Deal

Wed, 29 Oct - Wed, 5 Nov

20:05 - 17:05LHR-KGS

19h 00m1 stop

18:55 - 22:55KGS-LHR

6h 00m1 stop

£173

Find Deal

Fri, 31 Oct - Wed, 5 Nov

16:40 - 19:25LHR-KGS

24h 45m1 stop

18:55 - 22:55KGS-LHR

6h 00m1 stop

£176Lufthansa

Find Deal

Fri, 31 Oct - Wed, 5 Nov

12:15 - 23:55LHR-KGS

9h 40m1 stop

18:10 - 17:55KGS-LHR

25h 45m1 stop

£186Aegean Airlines

Find Deal

Mon, 6 Oct - Thu, 16 Oct

22:15 - 10:55LHR-KGS

10h 40m1 stop

18:10 - 11:15KGS-LHR

19h 05m1 stop

£193Aegean Airlines

Find Deal

Sun, 12 Oct - Wed, 15 Oct

19:15 - 19:25LHR-KGS

22h 10m1 stop

18:55 - 22:55KGS-LHR

6h 00m1 stop

£196Lufthansa

Find Deal

Fri, 31 Oct - Wed, 5 Nov

06:00 - 19:40LHR-KGS

11h 40m1 stop

20:30 - 07:55KGS-LHR

13h 25m1 stop

£205SWISS

Find Deal

Tue, 14 Oct - Tue, 21 Oct

Aegean Airlines flights from London Heathrow Airport to Kos

Our best Aegean Airlines deals on London Heathrow Airport to Kos flight tickets

Aegean Airlines

6 Oct

LHR12:15London Heathrow

9h 40m

1 stop

KGS23:55Kos

16 Oct

KGS18:10Kos

25h 45m

1 stop

LHR17:55London Heathrow

£186

Find similar

Aegean Airlines

12 Oct

LHR22:15London Heathrow

10h 40m

1 stop

KGS10:55Kos

15 Oct

KGS18:10Kos

19h 05m

1 stop

LHR11:15London Heathrow

£193

Find similar

Aegean Airlines

13 Oct

LHR22:15London Heathrow

10h 40m

1 stop

KGS10:55Kos

15 Oct

KGS18:10Kos

19h 05m

1 stop

LHR11:15London Heathrow

£197

Find similar

Lufthansa flights from London Heathrow Airport to Kos

Our best Lufthansa deals on London Heathrow Airport to Kos flight tickets

Lufthansa

1 Nov

LHR07:40London Heathrow

9h 45m

1 stop

KGS19:25Kos

5 Nov

KGS18:55Kos

6h 00m

1 stop

LHR22:55London Heathrow

£152

Find similar

Lufthansa

29 Oct

LHR08:30London Heathrow

7h 30m

2 stops

KGS18:00Kos

5 Nov

KGS18:55Kos

6h 00m

1 stop

LHR22:55London Heathrow

£166

Find similar

Lufthansa

31 Oct

LHR16:40London Heathrow

24h 45m

1 stop

KGS19:25Kos

5 Nov

KGS18:55Kos

6h 00m

1 stop

LHR22:55London Heathrow

£176

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 29/10

08:45-18:00

1 stop7h 15m

Kos

Wed 5/11

18:55-22:55

1 stop6h 00m

£122

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 8/10

10:25-20:50

1 stop8h 25m

Kos

Mon 13/10

20:50-08:20

1 stop13h 30m

£149

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Sat 1/11

07:40-19:25

1 stop9h 45m

Kos

Wed 5/11

18:55-22:55

1 stop6h 00m

£152

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 29/10

08:30-18:00

2 stops7h 30m

Kos

Wed 5/11

18:55-22:55

1 stop6h 00m

£166

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 31/10

20:05-17:05

1 stop19h 00m

Kos

Wed 5/11

18:55-22:55

1 stop6h 00m

£173

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 31/10

16:40-19:25

1 stop24h 45m

Kos

Wed 5/11

18:55-22:55

1 stop6h 00m

£176

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Mon 6/10

12:15-23:55

1 stop9h 40m

Kos

Thu 16/10

18:10-17:55

1 stop25h 45m

£186

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Sun 12/10

22:15-10:55

1 stop10h 40m

Kos

Wed 15/10

18:10-11:15

1 stop19h 05m

£193

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 31/10

19:15-19:25

1 stop22h 10m

Kos

Wed 5/11

18:55-22:55

1 stop6h 00m

£196

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Tue 14/10

06:00-19:40

1 stop11h 40m

Kos

Tue 21/10

20:30-07:55

1 stop13h 25m

£205

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Kos

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Kos?

According to our data, Thursday is the cheapest day to fly to Kos from London Heathrow Airport. The lowest ticket price found for a Thursday departure recently was £207. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Kos is Saturday, with ticket prices averaging around £388.

What is the cheapest time of day to depart on your flight to Kos?

Our most recent data shows that the best time of day to fly to Kos is in the afternoon. Flights from London Heathrow Airport to Kos during this time can be as low as £195. In the morning is when there is more demand to fly to Kos, so prices are often more expensive at around £293 per ticket.

What is the cheapest London Heathrow to Kos flight route?

Fly from London Heathrow to Kos for the best London Heathrow - Kos flight prices

What cabin class options are available on London Heathrow to Kos flights?

There is only 1 cabin class available to choose from on London Heathrow to Kos flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

When to book flights from London Heathrow Airport to Kos

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Kos according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Heathrow Airport to Kos (LHR to KGS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Kos

Direct flights	None

There are no direct flights from London Heathrow Airport to Kos. There are no popular flight routes from London Heathrow Airport to Kos.

Search flight deals

How far is London Heathrow to Kos by plane?
A flight from London Heathrow to Kos will travel around 1686.2 mi. Typically, this will take 6h 05m by plane in normal conditions.
When did momondo last update prices for flights from London Heathrow Airport to Kos Airport?
Prices for flights from London Heathrow Airport to Kos Airport refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Kos Airport?
The number of operators available for flights from London Heathrow Airport to Kos Airport is 3 as of September 2025.
How old do you have to be to fly from London Heathrow Airport to Kos Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Kos Airport.
What documentation or ID do you need to fly to Kos Airport?
The required travel and health documents for your Kos Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kos Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to Kos?
Based on momondo bookings for flights between London Heathrow Airport and Kos, the leading plane model is Airbus A320neo, making up 26.67% of the total bookings. Other popular models include Airbus A321-100/200 with 20.00%, Boeing 737-800 Passenger/BBJ2 (winglets) with 20.00%, and Airbus A320-100/200 with 20.00%.
What is the most popular airline from London Heathrow Airport to Kos?
Based on momondo bookings for flights between London Heathrow Airport and Kos, the leading airline is Aegean Airlines, making up 37% of the total bookings. Other popular airlines include Lufthansa with 35% and British Airways with 28%.

Best airlines flying from London Heathrow Airport to Kos

Compare and see reviews for airlines that fly from London Heathrow Airport to Kos with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom £132	Free Cancellation	Rating 6.8 7,407 reviews	Search Lufthansa flights
Aegean Airlines	PriceFrom £169	Free Cancellation	Rating 8.1 787 reviews	Search Aegean Airlines flights
British Airways	PriceFrom £223	Free Cancellation	Rating 6.6 7,361 reviews	Search British Airways flights

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Why use momondo?

Why should I use momondo to find a flight deal from London to Kos?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kos from London.

Can I find flights from London to Kos with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Kos from London with this policy.

How can momondo help me find flights from London to Kos?

Once you have performed a search for London to Kos flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Kos right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Kos now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Kos and let you know when they change.