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Cheap flights from London Heathrow Airport to Kos from £87

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 14/7. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from London Heathrow Airport to Kos

Cheap return flights

Enter your travel dates to find the best prices.
SWISS Logo
08:45 - 19:40
LHR
-
KGS
8h 55m
1 stop
SWISS Logo
20:30 - 07:55
KGS
-
LHR
13h 25m
1 stop
£175SWISS
Tue, 4 Aug - Tue, 11 Aug
Lufthansa Logo
07:25 - 19:05
LHR
-
KGS
9h 40m
1 stop
Lufthansa Logo
12:40 - 20:45
KGS
-
LHR
10h 05m
1 stop
£176Lufthansa
Wed, 1 Jul - Mon, 6 Jul
Lufthansa Logo
06:55 - 19:05
LHR
-
KGS
10h 10m
1 stop
Lufthansa Logo
12:40 - 20:45
KGS
-
LHR
10h 05m
1 stop
£177Lufthansa
Wed, 1 Jul - Mon, 6 Jul
Multiple Airlines Logo
07:25 - 19:05
LHR
-
KGS
9h 40m
1 stop
Multiple Airlines Logo
11:25 - 17:05
KGS
-
LHR
7h 40m
1 stop
£178Multiple Airlines
Wed, 1 Jul - Sun, 5 Jul
Multiple Airlines Logo
07:25 - 19:05
LHR
-
KGS
9h 40m
1 stop
Multiple Airlines Logo
11:25 - 17:05
KGS
-
LHR
7h 40m
1 stop
£179Multiple Airlines
Wed, 1 Jul - Sun, 5 Jul
SWISS Logo
20:05 - 19:55
LHR
-
KGS
21h 50m
1 stop
SWISS Logo
20:45 - 07:55
KGS
-
LHR
13h 10m
1 stop
£179SWISS
Tue, 4 Aug - Sat, 15 Aug
Multiple Airlines Logo
19:30 - 20:50
LHR
-
KGS
23h 20m
1 stop
Multiple Airlines Logo
20:30 - 07:55
KGS
-
LHR
13h 25m
1 stop
£186Multiple Airlines
Tue, 8 Sep - Tue, 29 Sep
Brussels Airlines Logo
06:50 - 10:25
LHR
-
KGS
25h 35m
1 stop
Brussels Airlines Logo
11:25 - 17:05
KGS
-
LHR
7h 40m
1 stop
£187Brussels Airlines
Sun, 28 Jun - Wed, 1 Jul
Brussels Airlines Logo
06:50 - 10:25
LHR
-
KGS
25h 35m
1 stop
Brussels Airlines Logo
11:25 - 17:05
KGS
-
LHR
7h 40m
1 stop
£188Brussels Airlines
Sun, 28 Jun - Wed, 8 Jul
SWISS Logo
12:10 - 19:55
LHR
-
KGS
5h 45m
1 stop
SWISS Logo
20:40 - 07:55
KGS
-
LHR
13h 15m
1 stop
£190SWISS
Wed, 19 Aug - Wed, 26 Aug

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Lufthansa flights from London Heathrow Airport to Kos

Our best Lufthansa deals on London Heathrow Airport to Kos flight tickets
Lufthansa
1 Jul
LHR07:25London Heathrow
9h 40m
1 stop
KGS19:05Kos
6 Jul
KGS12:40Kos
10h 05m
1 stop
LHR20:45London Heathrow
£176
Lufthansa
1 Jul
LHR06:55London Heathrow
10h 10m
1 stop
KGS19:05Kos
6 Jul
KGS12:40Kos
10h 05m
1 stop
LHR20:45London Heathrow
£177
Lufthansa
9 Sept
LHR09:00London Heathrow
8h 05m
1 stop
KGS19:05Kos
14 Sept
KGS09:45Kos
8h 55m
1 stop
LHR16:40London Heathrow
£198

Brussels Airlines flights from London Heathrow Airport to Kos

Our best Brussels Airlines deals on London Heathrow Airport to Kos flight tickets
Brussels Airlines
28 Jun
LHR06:50London Heathrow
25h 35m
1 stop
KGS10:25Kos
1 Jul
KGS11:25Kos
7h 40m
1 stop
LHR17:05London Heathrow
£187
Brussels Airlines
28 Jun
LHR06:50London Heathrow
25h 35m
1 stop
KGS10:25Kos
8 Jul
KGS11:25Kos
7h 40m
1 stop
LHR17:05London Heathrow
£188
Brussels Airlines
19 Sept
LHR06:50London Heathrow
10h 45m
1 stop
KGS19:35Kos
30 Sept
KGS11:25Kos
7h 40m
1 stop
LHR17:05London Heathrow
£191

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 10 June 2026.
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

Cheapest return flight

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Tue 4/8

08:45-19:40

1 stop8h 55m

Kos

Tue 11/8

20:30-07:55

1 stop13h 25m

£175

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 1/7

07:25-19:05

1 stop9h 40m

Kos

Mon 6/7

12:40-20:45

1 stop10h 05m

£176

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 1/7

06:55-19:05

1 stop10h 10m

Kos

Mon 6/7

12:40-20:45

1 stop10h 05m

£177
Fastest return journey

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 1/7

07:25-19:05

1 stop9h 40m

Kos

Sun 5/7

11:25-17:05

1 stop7h 40m

£178

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 1/7

07:25-19:05

1 stop9h 40m

Kos

Sun 5/7

11:25-17:05

1 stop7h 40m

£179

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Tue 4/8

20:05-19:55

1 stop21h 50m

Kos

Sat 15/8

20:45-07:55

1 stop13h 10m

£179

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Tue 8/9

19:30-20:50

1 stop23h 20m

Kos

Tue 29/9

20:30-07:55

1 stop13h 25m

£186

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Sun 28/6

06:50-10:25

1 stop25h 35m

Kos

Wed 1/7

11:25-17:05

1 stop7h 40m

£187

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Sun 28/6

06:50-10:25

1 stop25h 35m

Kos

Wed 8/7

11:25-17:05

1 stop7h 40m

£188

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 19/8

12:10-19:55

1 stop5h 45m

Kos

Wed 26/8

20:40-07:55

1 stop13h 15m

£190

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 month to fly to Kos?

The cheapest month to fly to Kos from London Heathrow Airport is in December. Flight prices, which tend to average around £0, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of December, then book flights to Kos from London Heathrow Airport during February instead. Flights to Kos in February, while not as cheap as those in December, still average around £0.

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

According to our data, Wednesday is the cheapest day to fly to Kos from London Heathrow Airport. The lowest ticket price found for a Wednesday departure recently was £229. 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 £385.

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 £212. In the morning is when there is more demand to fly to Kos, so prices are often more expensive at around £292 per ticket.

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

Fastest flight time

6h 00m

Direct flights

None
The fastest flight from London Heathrow Airport to Kos takes 6h 00m
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

Frequently asked questions about flying from London Heathrow Airport to Kos

  • 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 00m 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 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 £134Free CancellationRating
6.8
8,053 reviews
Search Lufthansa flights
Aegean AirlinesPriceFrom £221Free CancellationRating
8.1
878 reviews
Search Aegean Airlines 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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