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Cheap flights from London Heathrow Airport to Kos from £90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Kos departing on 30/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to Kos

Cheap return flights

Austrian Airlines Logo
09:05 - 20:50LHR-KGS
9h 45m1 stop
Austrian Airlines Logo
20:50 - 08:45KGS-LHR
13h 55m1 stop
£147Austrian Airlines
Find Deal
Wed, 3 Sep - Mon, 8 Sep
Logo
19:30 - 20:50LHR-KGS
23h 20m1 stop
Logo
20:30 - 07:55KGS-LHR
13h 25m1 stop
£151
Find Deal
Tue, 2 Sep - Tue, 16 Sep
Austrian Airlines Logo
06:00 - 20:45LHR-KGS
12h 45m1 stop
Austrian Airlines Logo
21:35 - 21:40KGS-LHR
26h 05m1 stop
£152Austrian Airlines
Find Deal
Fri, 3 Oct - Fri, 10 Oct
Austrian Airlines Logo
19:30 - 09:10LHR-KGS
11h 40m1 stop
Austrian Airlines Logo
10:00 - 08:20KGS-LHR
24h 20m1 stop
£153Austrian Airlines
Find Deal
Sat, 27 Sep - Sun, 5 Oct
Austrian Airlines Logo
09:05 - 20:45LHR-KGS
9h 40m1 stop
Austrian Airlines Logo
20:50 - 08:45KGS-LHR
13h 55m1 stop
£167Austrian Airlines
Find Deal
Fri, 3 Oct - Mon, 6 Oct
SWISS Logo
07:00 - 19:55LHR-KGS
34h 55m2 stops
SWISS Logo
20:30 - 07:55KGS-LHR
13h 25m1 stop
£182SWISS
Find Deal
Tue, 2 Sep - Tue, 16 Sep
Logo
17:50 - 10:25LHR-KGS
14h 35m1 stop
Logo
21:35 - 09:00KGS-LHR
13h 25m1 stop
£184
Find Deal
Sun, 24 Aug - Fri, 5 Sep
Aegean Airlines Logo
22:15 - 10:45LHR-KGS
10h 30m1 stop
Aegean Airlines Logo
11:25 - 17:55KGS-LHR
8h 30m1 stop
£192Aegean Airlines
Find Deal
Tue, 23 Sep - Fri, 26 Sep
Aegean Airlines Logo
22:15 - 23:55LHR-KGS
23h 40m1 stop
Aegean Airlines Logo
18:10 - 11:15KGS-LHR
19h 05m1 stop
£201Aegean Airlines
Find Deal
Mon, 8 Sep - Mon, 15 Sep
Lufthansa Logo
19:30 - 08:50LHR-KGS
11h 20m1 stop
Lufthansa Logo
18:55 - 22:55KGS-LHR
6h 00m1 stop
£245Lufthansa
Find Deal
Fri, 24 Oct - Wed, 29 Oct

Austrian Airlines flights from London Heathrow Airport to Kos

Our best Austrian Airlines deals on London Heathrow Airport to Kos flight tickets
Austrian Airlines
3 Sept
LHR09:05London Heathrow
9h 45m
1 stop
KGS20:50Kos
8 Sept
KGS20:50Kos
13h 55m
1 stop
LHR08:45London Heathrow
£147
Find similar
Austrian Airlines
3 Oct
LHR06:00London Heathrow
12h 45m
1 stop
KGS20:45Kos
10 Oct
KGS21:35Kos
26h 05m
1 stop
LHR21:40London Heathrow
£152
Find similar
Austrian Airlines
27 Sept
LHR19:30London Heathrow
11h 40m
1 stop
KGS09:10Kos
5 Oct
KGS10:00Kos
24h 20m
1 stop
LHR08:20London Heathrow
£153
Find similar

Aegean Airlines flights from London Heathrow Airport to Kos

Our best Aegean Airlines deals on London Heathrow Airport to Kos flight tickets
Aegean Airlines
23 Sept
LHR22:15London Heathrow
10h 30m
1 stop
KGS10:45Kos
26 Sept
KGS11:25Kos
8h 30m
1 stop
LHR17:55London Heathrow
£192
Find similar
Aegean Airlines
8 Sept
LHR22:15London Heathrow
23h 40m
1 stop
KGS23:55Kos
15 Sept
KGS18:10Kos
19h 05m
1 stop
LHR11:15London Heathrow
£201
Find similar
Aegean Airlines
12 Oct
LHR22:15London Heathrow
10h 40m
1 stop
KGS10:55Kos
15 Oct
KGS18:10Kos
25h 45m
1 stop
LHR17:55London Heathrow
£203
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Kos 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, momondo users made 279,928 searches. Data last updated 1 August 2025.
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 3/9

09:05-20:50

1 stop9h 45m

Kos

Mon 8/9

20:50-08:45

1 stop13h 55m

£147

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Tue 2/9

19:30-20:50

1 stop23h 20m

Kos

Tue 16/9

20:30-07:55

1 stop13h 25m

£151

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 3/10

06:00-20:45

1 stop12h 45m

Kos

Fri 10/10

21:35-21:40

1 stop26h 05m

£152

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Sat 27/9

19:30-09:10

1 stop11h 40m

Kos

Sun 5/10

10:00-08:20

1 stop24h 20m

£153

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 3/10

09:05-20:45

1 stop9h 40m

Kos

Mon 6/10

20:50-08:45

1 stop13h 55m

£167

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Tue 2/9

07:00-19:55

2 stops34h 55m

Kos

Tue 16/9

20:30-07:55

1 stop13h 25m

£182

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Sun 24/8

17:50-10:25

1 stop14h 35m

Kos

Fri 5/9

21:35-09:00

1 stop13h 25m

£184

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Tue 23/9

22:15-10:45

1 stop10h 30m

Kos

Fri 26/9

11:25-17:55

1 stop8h 30m

£192

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Mon 8/9

22:15-23:55

1 stop23h 40m

Kos

Mon 15/9

18:10-11:15

1 stop19h 05m

£201

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 24/10

19:30-08:50

1 stop11h 20m

Kos

Wed 29/10

18:55-22:55

1 stop6h 00m

£245

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Kos from

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

What is the typical price of a round-trip flight between London Heathrow Airport and Kos?

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 £216. 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 £392.

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 £201. In the morning is when there is more demand to fly to Kos, so prices are often more expensive at around £311 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 are 1 cabin classes 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

Best price found

£90

Fastest flight time

6h 35m

Direct flights

None

Airports in Kos

1 airport
The best one-way flight to Kos from London Heathrow Airport in the past 72 hours is £90. The best return flight deal from London Heathrow Airport to Kos found on momondo in the last 72 hours is £147.
The fastest flight from London Heathrow Airport to Kos takes 6h 35m
There are no direct flights from London Heathrow Airport to Kos. Popular non-direct route for this connection is London Heathrow Airport - Kos Airport.
There is 1 airport near Kos: Kos (KGS)
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 35m 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?

  • 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?

  • What is the most popular airline from London Heathrow Airport to Kos?

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
LufthansaPriceFrom £132Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights
SWISSPriceFrom £162Free CancellationRating
7.5
1,686 reviews
Search SWISS flights
Aegean AirlinesPriceFrom £174Free CancellationRating
8.1
781 reviews
Search Aegean Airlines flights
British AirwaysPriceFrom £223Free CancellationRating
6.6
7,222 reviews
Search British Airways flights

Travelling to a place near Kos?

Book flights to Kos if you plan to visit one of these locations
Kardamena
Marmari

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.

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