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Cheap flights from London Heathrow Airport to Kos from £94

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 8/4. 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.
Multiple Airlines Logo
20:05 - 10:20
LHR
-
KGS
12h 15m
1 stop
Multiple Airlines Logo
11:25 - 17:05
KGS
-
LHR
7h 40m
1 stop
£141Multiple Airlines
Wed, 22 Apr - Wed, 29 Apr
Multiple Airlines Logo
06:55 - 19:05
LHR
-
KGS
10h 10m
1 stop
Multiple Airlines Logo
11:25 - 21:35
KGS
-
LHR
12h 10m
1 stop
£152Multiple Airlines
Wed, 17 Jun - Mon, 29 Jun
Multiple Airlines Logo
06:55 - 19:05
LHR
-
KGS
10h 10m
1 stop
Multiple Airlines Logo
11:25 - 21:35
KGS
-
LHR
12h 10m
1 stop
£153Multiple Airlines
Wed, 24 Jun - Tue, 30 Jun
Multiple Airlines Logo
18:40 - 10:20
LHR
-
KGS
13h 40m
1 stop
Multiple Airlines Logo
11:25 - 17:05
KGS
-
LHR
7h 40m
1 stop
£153Multiple Airlines
Wed, 22 Apr - Wed, 29 Apr
SWISS Logo
06:00 - 18:45
LHR
-
KGS
10h 45m
1 stop
SWISS Logo
19:35 - 16:25
KGS
-
LHR
22h 50m
2 stops
£155SWISS
Mon, 6 Apr - Mon, 13 Apr
Multiple Airlines Logo
18:40 - 10:20
LHR
-
KGS
13h 40m
1 stop
Multiple Airlines Logo
11:25 - 17:05
KGS
-
LHR
7h 40m
1 stop
£164Multiple Airlines
Wed, 22 Apr - Sun, 26 Apr
SWISS Logo
06:00 - 20:00
LHR
-
KGS
12h 00m
1 stop
SWISS Logo
20:45 - 07:55
KGS
-
LHR
13h 10m
1 stop
£167SWISS
Sat, 11 Apr - Sat, 18 Apr
Brussels Airlines Logo
06:50 - 16:25
LHR
-
KGS
7h 35m
1 stop
Brussels Airlines Logo
11:25 - 17:05
KGS
-
LHR
7h 40m
1 stop
£176Brussels Airlines
Fri, 12 Jun - Wed, 17 Jun
Brussels Airlines Logo
06:50 - 16:25
LHR
-
KGS
7h 35m
1 stop
Brussels Airlines Logo
17:20 - 21:35
KGS
-
LHR
6h 15m
1 stop
£177Brussels Airlines
Fri, 26 Jun - Fri, 3 Jul
Brussels Airlines Logo
06:50 - 16:25
LHR
-
KGS
7h 35m
1 stop
Brussels Airlines Logo
17:20 - 21:35
KGS
-
LHR
6h 15m
1 stop
£178Brussels Airlines
Fri, 26 Jun - Fri, 3 Jul

SWISS flights from London Heathrow Airport to Kos

Our best SWISS deals on London Heathrow Airport to Kos flight tickets
SWISS
6 Apr
LHR06:00London Heathrow
10h 45m
1 stop
KGS18:45Kos
13 Apr
KGS19:35Kos
22h 50m
2 stops
LHR16:25London Heathrow
£155
SWISS
11 Apr
LHR06:00London Heathrow
12h 00m
1 stop
KGS20:00Kos
18 Apr
KGS20:45Kos
13h 10m
1 stop
LHR07:55London Heathrow
£167
SWISS
1 Jun
LHR20:05London Heathrow
21h 35m
1 stop
KGS19:40Kos
8 Jun
KGS11:00Kos
7h 25m
1 stop
LHR16:25London Heathrow
£190

Brussels Airlines flights from London Heathrow Airport to Kos

Our best Brussels Airlines deals on London Heathrow Airport to Kos flight tickets
Brussels Airlines
12 Jun
LHR06:50London Heathrow
7h 35m
1 stop
KGS16:25Kos
17 Jun
KGS11:25Kos
7h 40m
1 stop
LHR17:05London Heathrow
£176
Brussels Airlines
26 Jun
LHR06:50London Heathrow
7h 35m
1 stop
KGS16:25Kos
3 Jul
KGS17:20Kos
6h 15m
1 stop
LHR21:35London Heathrow
£177
Brussels Airlines
26 Jun
LHR06:50London Heathrow
7h 35m
1 stop
KGS16:25Kos
3 Jul
KGS17:20Kos
6h 15m
1 stop
LHR21:35London Heathrow
£178

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 13 March 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

Wed 22/4

20:05-10:20

1 stop12h 15m

Kos

Wed 29/4

11:25-17:05

1 stop7h 40m

£141

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 17/6

06:55-19:05

1 stop10h 10m

Kos

Mon 29/6

11:25-21:35

1 stop12h 10m

£152

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 24/6

06:55-19:05

1 stop10h 10m

Kos

Tue 30/6

11:25-21:35

1 stop12h 10m

£153

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 22/4

18:40-10:20

1 stop13h 40m

Kos

Wed 29/4

11:25-17:05

1 stop7h 40m

£153

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Mon 6/4

06:00-18:45

1 stop10h 45m

Kos

Mon 13/4

19:35-16:25

2 stops22h 50m

£155

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Wed 22/4

18:40-10:20

1 stop13h 40m

Kos

Sun 26/4

11:25-17:05

1 stop7h 40m

£164

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Sat 11/4

06:00-20:00

1 stop12h 00m

Kos

Sat 18/4

20:45-07:55

1 stop13h 10m

£167

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 12/6

06:50-16:25

1 stop7h 35m

Kos

Wed 17/6

11:25-17:05

1 stop7h 40m

£176
Fastest return journey

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 26/6

06:50-16:25

1 stop7h 35m

Kos

Fri 3/7

17:20-21:35

1 stop6h 15m

£177

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 26/6

06:50-16:25

1 stop7h 35m

Kos

Fri 3/7

17:20-21:35

1 stop6h 15m

£178

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 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 £220. 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 £397.

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 £299 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

  • 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 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 £130Free CancellationRating
6.8
7,848 reviews
Search Lufthansa flights
Aegean AirlinesPriceFrom £216Free CancellationRating
8.1
857 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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