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Cheap flights from London to Kos from £30

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 16/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KGS
18 May — 25 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Kos are usually found in April or March, booked 9 days in advance, depart on a Thursday or Wednesday 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 18 April 2026.

Wed 3/605:55
STN
-
KGS
1 stop15h 05m
Ryanair
Wed 10/623:25
KGS
-
STN
2 stops12h 35m
Ryanair
Deal found 14/4£106
Wed 3/620:35
LTN
-
KGS
1 stop16h 50m
Multiple Airlines
Tue 9/618:50
KGS
-
LTN
2 stops12h 05m
Multiple Airlines
Deal found 15/4£106
Tue 2/614:35
STN
-
KGS
Nonstop3h 50m
Ryanair
Wed 10/614:55
KGS
-
STN
Nonstop4h 10m
Ryanair
Deal found 14/4£107
Sun 14/611:40
STN
-
KGS
1 stop7h 50m
Ryanair
Fri 19/610:00
KGS
-
STN
2 stops15h 45m
Ryanair
Deal found 16/4£108
Sun 28/615:55
STN
-
KGS
Nonstop3h 50m
Ryanair
Sun 5/722:10
KGS
-
STN
Nonstop4h 10m
Ryanair
Deal found 14/4£109
Wed 3/608:35
STN
-
KGS
Nonstop3h 50m
Ryanair
Tue 9/620:55
KGS
-
STN
Nonstop4h 10m
Ryanair
Deal found 15/4£110
Sun 14/619:20
LGW
-
KGS
2 stops26h 10m
Multiple Airlines
Thu 18/612:05
KGS
-
LGW
1 stop12h 40m
Multiple Airlines
Deal found 16/4£110
Tue 16/614:35
STN
-
KGS
Nonstop3h 50m
Multiple Airlines
Sat 20/621:35
KGS
-
STN
1 stop11h 15m
Multiple Airlines
Deal found 14/4£111
Wed 17/607:15
LTN
-
KGS
1 stop13h 45m
Multiple Airlines
Tue 30/618:50
KGS
-
LTN
1 stop7h 05m
Multiple Airlines
Deal found 17/4£112
Wed 3/621:00
LGW
-
KGS
1 stop16h 25m
Multiple Airlines
Wed 10/618:00
KGS
-
LGW
2 stops21h 00m
Multiple Airlines
Deal found 14/4£112
Sun 31/519:20
STN
-
KGS
2 stops26h 10m
Ryanair
Sun 7/622:10
KGS
-
STN
1 stop16h 25m
Ryanair
Deal found 16/4£115
Mon 8/621:50
LTN
-
KGS
2 stops18h 35m
Multiple Airlines
Mon 15/609:55
KGS
-
LTN
2 stops21h 00m
Multiple Airlines
Deal found 16/4£115

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 18 April 2026.

Round-trip from

£106

One-way from

£30

Popular in

August

Cheapest in

April

Average price

£140

Good round-trip deal

£109 or less

Good one-way deal

£56 or less
Ryanair
  • Ryanair
  • 3/6-10/6
  • 3 total stops
  • 27h 40m total
  • London to Kos
Search Deals
Ryanair
  • Ryanair
  • 16/6
  • Nonstop
  • 3h 50m total
  • London to Kos
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£13 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 April 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to Kos.
Search Deals
Price to beat on a one-way 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 18 April 2026.
Use the filters below to find and compare flights from London to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKos

STN - KGS

STNKGS

London Stansted

Sun 17/5

15:55-21:45

Nonstop3h 50m

Kos

Sun 24/5

22:10-00:20

Nonstop4h 10m

£110

LondonKos

LTN - KGS

LTNKGS

London Luton

Wed 3/6

19:50-21:25

2 stops23h 35m

Kos

Tue 9/6

18:50-04:55

2 stops12h 05m

£116

LondonKos

STN - KGS

STNKGS

London Stansted

Sat 20/6

20:30-21:30

1 stop23h 00m

Kos

Wed 24/6

14:55-17:05

Nonstop4h 10m

£117

LondonKos

STN - KGS

STNKGS

London Stansted

Wed 13/5

08:35-14:25

Nonstop3h 50m

Kos

Wed 20/5

23:00-01:10

Nonstop4h 10m

£117

LondonKos

LTN - KGS

LTNKGS

London Luton

Thu 4/6

21:50-10:55

1 stop11h 05m

Kos

Thu 11/6

12:05-11:55

2 stops25h 50m

£123

LondonKos

LTN - KGS

LTNKGS

London Luton

Sun 21/6

20:15-22:35

2 stops24h 20m

Kos

Wed 24/6

10:15-19:55

1 stop11h 40m

£123

LondonKos

LGW - KGS

LGWKGS

London Gatwick

Thu 16/7

15:10-21:15

Nonstop4h 05m

Kos

Thu 23/7

22:05-00:20

Nonstop4h 15m

£134
Fastest return journey

LondonKos

STN - KGS

STNKGS

London Stansted

Thu 9/7

17:25-23:10

Nonstop3h 45m

Kos

Sun 26/7

22:10-00:20

Nonstop4h 10m

£140

LondonKos

LTN - KGS

LTNKGS

London Luton

Mon 8/6

15:55-21:55

Nonstop4h 00m

Kos

Mon 15/6

22:50-00:55

Nonstop4h 05m

£143

LondonKos

LGW - KGS

LGWKGS

London Gatwick

Tue 5/5

09:25-22:05

1 stop10h 40m

Kos

Thu 7/5

22:05-00:20

Nonstop4h 15m

£152

Flights are sorted by cheapest return flights first.

Deals found on 18/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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6

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 10 April 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.

What is the cheapest month to book a flight from London to Kos?

Currently, April is the cheapest month in which you can book a flight from London to Kos (average of £32). Flying from London to Kos in February is currently the most expensive (average of £224). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 18 April 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
185 reviews
Check prices

Crew

8.7

Food

7.2

Entertainment

6.2

Comfort

7.7

Boarding

8.1

Overall

8.2

Reviews

1 / 18
10.0
Excellent

Irene,Feb 2026

ALC - EMA

I always fly with Jet 2...I have never had a bad flight with them. From arriving at the airport, to the checking in has been trouble free. My last flight I booked my seat, I dont normally if im travelling on my own, the plane was full so im pleased I did. The flight was smooth on take off and landing.
Jet2
8.2
Very Good
185 reviews
Jet2
8.2
Very Good
185 reviews
Check prices

Crew

8.7

Food

7.2

Entertainment

6.2

Comfort

7.7

Boarding

8.1

Overall

8.2

Reviews

1 / 18
10.0
Excellent

Irene,Feb 2026

ALC - EMA

I always fly with Jet 2...I have never had a bad flight with them. From arriving at the airport, to the checking in has been trouble free. My last flight I booked my seat, I dont normally if im travelling on my own, the plane was full so im pleased I did. The flight was smooth on take off and landing.
Ryanair
6.9
Okay
5,338 reviews
Jet2
8.2
Very Good
185 reviews
Check prices

Crew

8.7

Food

7.2

Entertainment

6.2

Comfort

7.7

Boarding

8.1

Overall

8.2

Reviews

1 / 18
10.0
Excellent

Irene,Feb 2026

ALC - EMA

I always fly with Jet 2...I have never had a bad flight with them. From arriving at the airport, to the checking in has been trouble free. My last flight I booked my seat, I dont normally if im travelling on my own, the plane was full so im pleased I did. The flight was smooth on take off and landing.
easyJet
6.9
Okay
1,892 reviews
Jet2
8.2
Very Good
185 reviews
Check prices

Crew

8.7

Food

7.2

Entertainment

6.2

Comfort

7.7

Boarding

8.1

Overall

8.2

Reviews

1 / 18
10.0
Excellent

Irene,Feb 2026

ALC - EMA

I always fly with Jet 2...I have never had a bad flight with them. From arriving at the airport, to the checking in has been trouble free. My last flight I booked my seat, I dont normally if im travelling on my own, the plane was full so im pleased I did. The flight was smooth on take off and landing.
British Airways
6.7
Okay
7,891 reviews
Jet2
8.2
Very Good
185 reviews
Check prices

Crew

8.7

Food

7.2

Entertainment

6.2

Comfort

7.7

Boarding

8.1

Overall

8.2

Reviews

1 / 18
10.0
Excellent

Irene,Feb 2026

ALC - EMA

I always fly with Jet 2...I have never had a bad flight with them. From arriving at the airport, to the checking in has been trouble free. My last flight I booked my seat, I dont normally if im travelling on my own, the plane was full so im pleased I did. The flight was smooth on take off and landing.

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 3h 50m. Ryanair provides one of the quickest options available for as low as £110. London and Kos are separated by a distance of 1670 mi. Most flights are nonstop.

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

    Cheapflights users have booked flights from London to Kos round-trip from £35. Other airlines that can offer you cheap pricing are easyJet, from £60, and British Airways, from £101. 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 Stansted - Kos and London Heathrow - 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.

  • What is the cheapest month to book a flight from London to Kos?

    Currently, April is the cheapest month in which you can book a flight from London to Kos (average of £32). Flying from London to Kos in February is currently the most expensive (average of £224). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Kos?

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

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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 18 April 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 18 April 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£35Average£178FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£60Average£205FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£101Average£297FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TUI AirwaysCheapest£114Average£344FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
LufthansaCheapest£129Average£173FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Jet2Cheapest£145Average£341FlexibilityNo cancel feeOn-timeN/A
Search Jet2 flights
Aegean AirlinesCheapest£214Average£252FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights

Fly with Cheapflights

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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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