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Cheap flights from London to Kos from £21

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 16/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KGS
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Kos are usually found in April or January, booked 9 days in advance, depart on a Thursday or Monday and return on a Wednesday

Cheap flight deals from London to Kos

Enter your travel dates to find the best prices.

Cheapest flights from London to Kos
Explore the most affordable flight options available from London to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Sun 19/415:55
STN
-
KGS
Nonstop3h 50m
Multiple Airlines
Tue 21/422:50
KGS
-
STN
1 stop16h 35m
Multiple Airlines
Deal found 1/2£110
Sun 19/415:55
STN
-
KGS
Nonstop3h 50m
Multiple Airlines
Mon 20/422:25
KGS
-
STN
1 stop12h 20m
Multiple Airlines
Deal found 1/2£112
Sun 19/412:20
LGW
-
KGS
Nonstop4h 05m
Multiple Airlines
Mon 20/413:10
KGS
-
LGW
2 stops9h 45m
Multiple Airlines
Deal found 1/2£115
Tue 14/715:00
LGW
-
KGS
Nonstop4h 05m
easyJet
Sun 19/719:15
KGS
-
LGW
Nonstop4h 15m
easyJet
Deal found 30/1£116
Mon 23/315:40
STN
-
KGS
2 stops17h 50m
Multiple Airlines
Sun 29/322:10
KGS
-
STN
Nonstop4h 10m
Multiple Airlines
Deal found 31/1£119
Tue 14/715:00
LGW
-
KGS
Nonstop4h 05m
easyJet
Thu 16/722:05
KGS
-
LGW
Nonstop4h 15m
easyJet
Deal found 30/1£122
Tue 23/615:00
LGW
-
KGS
Nonstop4h 05m
easyJet
Thu 2/722:05
KGS
-
LGW
Nonstop4h 15m
easyJet
Deal found 1/2£123
Sun 19/412:20
LGW
-
KGS
Nonstop4h 05m
Multiple Airlines
Tue 21/408:35
KGS
-
LGW
1 stop6h 00m
Multiple Airlines
Deal found 1/2£126
Sun 3/505:45
LGW
-
KGS
1 stop9h 50m
Multiple Airlines
Thu 7/522:05
KGS
-
LGW
Nonstop4h 15m
Multiple Airlines
Deal found 31/1£129
Sat 18/420:00
STN
-
KGS
2 stops15h 20m
Multiple Airlines
Sun 19/422:10
KGS
-
STN
Nonstop4h 10m
Multiple Airlines
Deal found 1/2£134
Sun 12/412:20
LGW
-
KGS
Nonstop4h 05m
Multiple Airlines
Sat 18/412:40
KGS
-
LGW
1 stop20h 45m
Multiple Airlines
Deal found 1/2£134
Fri 17/418:25
LGW
-
KGS
1 stop11h 40m
Multiple Airlines
Sun 19/419:15
KGS
-
LGW
Nonstop4h 15m
Multiple Airlines
Deal found 1/2£135

Find flight deals from London to Kos

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Kos (KGS). 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 2 February 2026.

Round-trip from

£110

One-way from

£21

Popular in

August

Cheapest in

April

Average price

£208

Good round-trip deal

£142 or less
19/4-21/4
  • 19/4-21/4
  • 1 total stop
  • 20h 25m total
  • London to Kos
Search Deals
easyJet
  • easyJet
  • 16/4
  • Nonstop
  • 4h 05m total
  • London to Kos
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to Kos.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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, Cheapflights users made 858,174 searches. Data last updated 2 February 2026.
Use the filters below to find and compare flights from London to Kos that are best for you.

Fly from

London

Fly to

Kos

Route

Depart

Return

Price

LondonKos

STN - KGS

STNKGS

London Stansted

Mon 23/3

17:15-11:30

1 stop16h 15m

Kos

Sun 29/3

22:10-00:20

Nonstop4h 10m

£120

LondonKos

LGW - KGS

LGWKGS

London Gatwick

Tue 14/7

15:00-21:05

Nonstop4h 05m

Kos

Thu 16/7

22:05-00:20

Nonstop4h 15m

£122

LondonKos

STN - KGS

STNKGS

London Stansted

Sun 12/4

15:55-21:45

Nonstop3h 50m

Kos

Sat 18/4

12:40-06:40

2 stops20h 00m

£139

LondonKos

LGW - KGS

LGWKGS

London Gatwick

Tue 23/6

15:00-21:05

Nonstop4h 05m

Kos

Thu 2/7

17:15-23:05

1 stop7h 50m

£141

LondonKos

LGW - KGS

LGWKGS

London Gatwick

Tue 14/7

15:00-21:05

Nonstop4h 05m

Kos

Mon 20/7

14:20-16:40

Nonstop4h 20m

£148

LondonKos

STN - KGS

STNKGS

London Stansted

Thu 11/6

17:10-23:10

Nonstop4h 00m

Kos

Thu 18/6

12:05-20:15

1 stop10h 10m

£149

LondonKos

LTN - KGS

LTNKGS

London Luton

Wed 18/3

06:50-08:05

2 stops23h 15m

Kos

Wed 25/3

12:00-23:10

1 stop13h 10m

£150

LondonKos

LTN - KGS

LTNKGS

London Luton

Thu 18/6

16:50-22:50

Nonstop4h 00m

Kos

Mon 29/6

22:50-00:55

Nonstop4h 05m

£156

LondonKos

LGW - KGS

LGWKGS

London Gatwick

Tue 14/7

15:00-21:05

Nonstop4h 05m

Kos

Wed 15/7

14:55-17:10

Nonstop4h 15m

£158

LondonKos

STN - KGS

STNKGS

London Stansted

Wed 18/3

18:25-08:50

3 stops36h 25m

Kos

Wed 25/3

12:00-23:50

1 stop13h 50m

£163

Flights are sorted by cheapest return flights first.

Deals found on 1/2

Showing 1-10 of 60 results
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Best time to book a flight from London to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from London 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.

Cheapflights Insights

Everything you need to know about your flight from London to Kos

How far ahead should I book a flight from London to Kos?

Use this chart to determine the optimal time to book a return flight from London to Kos. Price data was last updated on 30 January 2026.

The price you pay for your flight from London to Kos may vary depending on when you book. For the best chance of a lower fare, look to book 9 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How much does it cost for a return flight from London to Kos?

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kos. Reviews last updated 2 February 2026.
Get a feel of what it's like to fly with Jet2, Ryanair, andeasyJet from London to Kos by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Jet2
8.2
Very Good
179 reviews
Check prices

Entertainment

6.2

Overall

8.2

Comfort

7.7

Food

7.3

Boarding

8.1

Crew

8.8

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.
Jet2
8.2
Very Good
179 reviews
Jet2
8.2
Very Good
179 reviews
Check prices

Entertainment

6.2

Overall

8.2

Comfort

7.7

Food

7.3

Boarding

8.1

Crew

8.8

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.
Ryanair
6.9
Okay
5,256 reviews
Jet2
8.2
Very Good
179 reviews
Check prices

Entertainment

6.2

Overall

8.2

Comfort

7.7

Food

7.3

Boarding

8.1

Crew

8.8

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.
easyJet
6.9
Okay
1,867 reviews
Jet2
8.2
Very Good
179 reviews
Check prices

Entertainment

6.2

Overall

8.2

Comfort

7.7

Food

7.3

Boarding

8.1

Crew

8.8

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.
British Airways
6.7
Okay
7,707 reviews
Jet2
8.2
Very Good
179 reviews
Check prices

Entertainment

6.2

Overall

8.2

Comfort

7.7

Food

7.3

Boarding

8.1

Crew

8.8

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.

Related info for your journey

Find useful and relevant information for your journey from London to Kos. 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 into for flights to Kos from London?

    Kos (KGS), located 12.8 mi from the city center, is the airport you fly into when you book flights from London to Kos. 7 airlines have flights to Kos from London on a regular basis. Booking flights from London to Kos should not be difficult; the airport handles an average of 0 inbound flights from London per day.

  • How long is the flight from London to Kos?

    A quick flight from London to Kos can take about 4h. easyJet provides one of the quickest options available for as low as £156. London and Kos are separated by a distance of 1692 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London to Kos round-trip?

    Cheapflights users have booked flights from London to Kos round-trip from £34. Other airlines that can offer you cheap pricing are easyJet, from £59, and British Airways, from £100. Ryanair is currently priced 85% below the average price you’ll pay for this route.

  • What are the most popular routes from London to Kos?

    The most popular flight routes from London to Kos are London Gatwick - Kos, London Heathrow - Kos and London Stansted - Kos.

  • Can I find deals for flights from London to Kos that include hotel bookings?

    Yes. In addition to deals on London to Kos flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Kos.

  • Can I find deals for business class flights from London to Kos?

    Yes. Cheapflights offers flight deals from London to Kos 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 Kos?

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

Browse thousands of different options on Cheapflights for your next trip

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Fly from London to Kos on these airlines

Choose from the following airlines for your flight from London to Kos. Flights are based on user searches made on Cheapflights and were last updated on 2 February 2026.
British Airways flights from London to Kos
easyJet flights from London to Kos
Ryanair flights from London to Kos

Top 7 airlines flying from London to Kos

Discover the top 7 airlines that operate flights from London to Kos. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 February 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£34Average£164FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£59Average£204FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£100Average£313FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TUI AirwaysCheapest£113Average£376FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
LufthansaCheapest£127Average£180FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Jet2Cheapest£143Average£352FlexibilityNo cancel feeOn-timeN/A
Search Jet2 flights
Aegean AirlinesCheapest£216Average£287FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights

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 London to Kos?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Kos from London today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from London to Kos?

Cheapflights helps you find that perfect flight to Kos from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Kos with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Kos flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Kos become cheaper?

Of course! You can now track prices for flights from London to Kos and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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