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Cheap flights from London to Kos from £39

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KGS
29 Nov — 6 Dec1
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 Thursday

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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 30 October 2025.

Tue 9/1208:10LGW - KGS
1 stop21h 55mMultiple Airlines
Tue 16/1216:40KGS - LGW
1 stop8h 15mMultiple Airlines
Deal found 28/10£139
Tue 9/1213:30LTN - KGS
1 stop16h 35mMultiple Airlines
Tue 16/1208:35KGS - LTN
1 stop9h 30mMultiple Airlines
Deal found 28/10£146
Fri 12/1219:45LTN - KGS
2 stops18h 25mMultiple Airlines
Sun 14/1217:35KGS - LTN
1 stop7h 40mMultiple Airlines
Deal found 28/10£157
Thu 4/1208:00LTN - KGS
1 stop10h 05mMultiple Airlines
Thu 11/1208:35KGS - LTN
1 stop9h 40mMultiple Airlines
Deal found 30/10£160
Thu 4/1206:10STN - KGS
1 stop13h 05mMultiple Airlines
Thu 11/1220:35KGS - STN
1 stop21h 25mMultiple Airlines
Deal found 30/10£162
Tue 9/1206:30STN - KGS
1 stop7h 40mMultiple Airlines
Tue 16/1208:35KGS - STN
1 stop8h 10mMultiple Airlines
Deal found 28/10£165
Thu 4/1219:00LHR - KGS
1 stop20h 05mAegean Airlines
Thu 11/1216:40KGS - LHR
1 stop6h 35mAegean Airlines
Deal found 30/10£169
Sun 2/1105:15STN - KGS
Nonstop4h 00mMultiple Airlines
Tue 11/1120:35KGS - STN
2 stops18h 05mMultiple Airlines
Deal found 30/10£177
Fri 12/1219:45LTN - KGS
2 stops18h 25mMultiple Airlines
Fri 19/1212:00KGS - LTN
1 stop15h 00mMultiple Airlines
Deal found 28/10£178
Thu 4/1208:05LGW - KGS
1 stop10h 00mMultiple Airlines
Thu 11/1208:35KGS - LGW
1 stop9h 55mMultiple Airlines
Deal found 30/10£184
Sun 2/1105:15STN - KGS
Nonstop4h 00mMultiple Airlines
Mon 10/1120:35KGS - STN
2 stops36h 55mMultiple Airlines
Deal found 28/10£187
Fri 12/1207:45STN - KGS
1 stop10h 50mMultiple Airlines
Sun 14/1221:45KGS - STN
1 stop11h 55mMultiple Airlines
Deal found 28/10£190

Cheap 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 30 October 2025.

Round-trip from

£139

One-way from

£70

Popular in

August

Cheapest in

April

Average price

£292

Good round-trip deal

£227 or less

Good one-way deal

£57 or less
9/12-16/12
  • 9/12-16/12
  • 2 total stops
  • 30h 10m total
  • London to Kos
Search Deals
4/11
  • 4/11
  • 1 total stop
  • 15h 10m total
  • London to Kos
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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 30 October 2025.
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

LGW - KGS

LGWKGS

London Gatwick

Tue 9/12

08:10-08:05

1 stop21h 55m

Kos

Tue 16/12

16:40-22:55

1 stop8h 15m

£139

LondonKos

LTN - KGS

LTNKGS

London Luton

Tue 9/12

13:30-08:05

1 stop16h 35m

Kos

Tue 16/12

08:35-16:05

1 stop9h 30m

£146

LondonKos

LTN - KGS

LTNKGS

London Luton

Thu 4/12

08:00-20:05

1 stop10h 05m

Kos

Thu 11/12

08:35-16:15

1 stop9h 40m

£160

LondonKos

STN - KGS

STNKGS

London Stansted

Thu 4/12

06:10-21:15

1 stop13h 05m

Kos

Thu 11/12

20:35-16:00

1 stop21h 25m

£162

LondonKos

STN - KGS

STNKGS

London Stansted

Tue 9/12

06:30-16:10

1 stop7h 40m

Kos

Tue 16/12

08:35-14:45

1 stop8h 10m

£165

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Thu 4/12

19:00-17:05

1 stop20h 05m

Kos

Thu 11/12

16:40-21:15

1 stop6h 35m

£169

LondonKos

STN - KGS

STNKGS

London Stansted

Fri 12/12

18:55-16:10

2 stops19h 15m

Kos

Sun 14/12

21:05-07:40

1 stop12h 35m

£170

LondonKos

LTN - KGS

LTNKGS

London Luton

Fri 12/12

19:45-16:10

2 stops18h 25m

Kos

Fri 19/12

12:00-01:00

1 stop15h 00m

£178

LondonKos

LGW - KGS

LGWKGS

London Gatwick

Thu 4/12

08:05-20:05

1 stop10h 00m

Kos

Thu 11/12

08:35-16:30

1 stop9h 55m

£184

LondonKos

LTN - KGS

LTNKGS

London Luton

Fri 12/12

16:25-08:05

1 stop13h 40m

Kos

Sun 14/12

17:35-23:10

1 stop7h 35m

£184

Flights are sorted by cheapest return flights first.

Deals found on 30/10

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 24 October 2025.

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 time of day to fly from LON to KGS?

Find hourly flight availability from London to Kos. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 41% on flights from London to Kos by exploring options for tickets in the evening.

What is the cheapest day to fly from London to Kos?

Use this chart to determine the cheapest time to fly return from London to Kos. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Kos flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 30 October 2025.
Get a feel of what it's like to fly with Jet2, easyJet, andRyanair 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
8.3
Very Good
172 reviews
Check prices

Overall

8.3

Comfort

7.7

Crew

8.8

Boarding

8.2

Food

7.3

Entertainment

6.2

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
Jet2
8.3
Very Good
172 reviews
Jet2
8.3
Very Good
172 reviews
Check prices

Overall

8.3

Comfort

7.7

Crew

8.8

Boarding

8.2

Food

7.3

Entertainment

6.2

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
easyJet
6.9
Okay
1,840 reviews
Jet2
8.3
Very Good
172 reviews
Check prices

Overall

8.3

Comfort

7.7

Crew

8.8

Boarding

8.2

Food

7.3

Entertainment

6.2

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
Ryanair
6.8
Okay
5,188 reviews
Jet2
8.3
Very Good
172 reviews
Check prices

Overall

8.3

Comfort

7.7

Crew

8.8

Boarding

8.2

Food

7.3

Entertainment

6.2

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
British Airways
6.7
Okay
7,488 reviews
Jet2
8.3
Very Good
172 reviews
Check prices

Overall

8.3

Comfort

7.7

Crew

8.8

Boarding

8.2

Food

7.3

Entertainment

6.2

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.

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 20h 05m. Aegean Airlines provides one of the quickest options available for as low as £169. London and Kos are separated by a distance of 1683 mi.

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

    Cheapflights users have booked flights from London to Kos round-trip from £36. Other airlines that can offer you cheap pricing are easyJet, from £104, and British Airways, from £115. Ryanair is currently priced 84% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London to Kos one-way?

    For one-way options, check prices for easyJet. According to our data, you can fly for as low as £39. Users have also found prices from £78 and £97 on Ryanair and Sky Express, respectively.

  • 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 City - 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 30 October 2025.
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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£36Average£199FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£104Average£224FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£115Average£388FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TUI AirwaysCheapest£125Average£409FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
LufthansaCheapest£136Average£210FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aegean AirlinesCheapest£175Average£283FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights
Jet2Cheapest£185Average£364FlexibilityNo cancel feeOn-timeN/A
Search Jet2 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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