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Cheap flights from London to Kos from £53

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KGS
9 Jul — 16 Jul1
1 adult

Cheapflights Tip: The best prices from London to Kos are usually found in April or January, booked 23 days in advance, depart on a Thursday or Monday and return on a Thursday

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 4 July 2025.

Round-trip from

£124

One-way from

£53

Popular in

December

Cheapest in

April

Average price

£250

Good round-trip deal

£143 or less

Good one-way deal

£79 or less
18/10-23/10
  • 18/10-23/10
  • 2 total stops
  • 22h 10m total
  • London to Kos
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31/8
  • 31/8
  • 1 total stop
  • 7h 20m total
  • London to Kos
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Highest demand for flights based on searches. 7% potential increase in price (£15 potential increase over avg. return price).
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Cheapest flight prices on average. 7% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from London (LON) to Kos.
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Price to beat on a one-way flight from London (LON) to Kos.
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Find flight deals from London to Kos

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 4 July 2025.

Sat 18/1020:20LGW - KGS
1 stop12h 45mMultiple Airlines
Thu 23/1012:15KGS - LGW
1 stop9h 25mMultiple Airlines
Deal found 3/7£124
Thu 18/915:10LGW - KGS
Nonstop4h 00measyJet
Sun 21/900:45KGS - LGW
Nonstop4h 10measyJet
Deal found 2/7£127
Wed 9/716:10STN - KGS
Nonstop4h 00mJet2
Wed 16/723:00KGS - STN
Nonstop4h 10mJet2
Deal found 2/7£138
Sat 18/1011:50STN - KGS
2 stops21h 15mMultiple Airlines
Thu 23/1010:20KGS - STN
1 stop14h 50mMultiple Airlines
Deal found 3/7£143
Thu 10/708:45STN - KGS
Nonstop3h 50mRyanair
Mon 14/717:00KGS - STN
Nonstop4h 10mRyanair
Deal found 2/7£144
Thu 17/707:30LHR - KGS
1 stop9h 10mLufthansa
Mon 21/712:40KGS - LHR
1 stop6h 25mLufthansa
Deal found 1/7£145
Fri 3/1019:30LHR - KGS
1 stop20h 25mAustrian Airlines
Fri 10/1021:35KGS - LHR
1 stop26h 05mAustrian Airlines
Deal found 2/7£147
Thu 11/910:30LHR - KGS
1 stop6h 10mMultiple Airlines
Tue 16/920:30KGS - LHR
1 stop13h 25mMultiple Airlines
Deal found 2/7£155
Sun 14/906:00LHR - KGS
1 stop6h 30mSWISS
Wed 24/920:40KGS - LHR
1 stop13h 15mSWISS
Deal found 2/7£180
Thu 11/908:45LCY - KGS
1 stop7h 55mMultiple Airlines
Tue 16/920:30KGS - LCY
1 stop14h 20mMultiple Airlines
Deal found 2/7£184
Wed 1/1006:05LTN - KGS
2 stops25h 30mMultiple Airlines
Wed 8/1006:00KGS - LTN
2 stops22h 15mMultiple Airlines
Deal found 2/7£195
Sun 7/919:00LHR - KGS
1 stop13h 45mAegean Airlines
Wed 10/918:10KGS - LHR
1 stop23h 20mAegean Airlines
Deal found 2/7£196

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 4 July 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

Sat 18/10

20:20-11:05

1 stop12h 45m

Kos

Thu 23/10

12:15-19:40

1 stop9h 25m

£124

LondonKos

LGW - KGS

LGWKGS

London Gatwick

Thu 18/9

15:10-21:10

Nonstop4h 00m

Kos

Sun 21/9

00:45-02:55

Nonstop4h 10m

£127

LondonKos

STN - KGS

STNKGS

London Stansted

Sat 18/10

11:50-11:05

2 stops21h 15m

Kos

Thu 23/10

10:20-23:10

1 stop14h 50m

£143

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Thu 17/7

07:30-18:40

1 stop9h 10m

Kos

Mon 21/7

12:40-17:05

1 stop6h 25m

£145

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Fri 3/10

19:30-17:55

1 stop20h 25m

Kos

Fri 10/10

21:35-21:40

1 stop26h 05m

£147

LondonKos

STN - KGS

STNKGS

London Stansted

Sun 7/9

08:30-21:00

1 stop10h 30m

Kos

Thu 11/9

22:35-08:20

1 stop11h 45m

£149

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Thu 11/9

10:30-18:40

1 stop6h 10m

Kos

Tue 16/9

20:30-07:55

1 stop13h 25m

£155

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Sun 14/9

06:00-14:30

1 stop6h 30m

Kos

Wed 24/9

20:40-07:55

1 stop13h 15m

£180

LondonKos

LCY - KGS

LCYKGS

London City

Thu 11/9

08:45-18:40

1 stop7h 55m

Kos

Tue 16/9

20:30-08:50

1 stop14h 20m

£184

LondonKos

LHR - KGS

LHRKGS

London Heathrow

Mon 15/9

19:00-10:45

1 stop13h 45m

Kos

Mon 22/9

18:10-15:30

1 stop23h 20m

£192

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 40 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 27 June 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 23 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 4 July 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 38% on flights from London to Kos by exploring options for tickets in the afternoon.

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 Thursday evenings when fares are most often at their lowest. Saturday at midday 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 4 July 2025.
Get a feel of what it's like to fly with Jet2, Aegean Airlines, andAustrian Airlines 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
163 reviews
Check prices

Boarding

8.2

Entertainment

6.3

Crew

8.8

Food

7.3

Overall

8.3

Comfort

7.8

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
163 reviews
Jet2
8.3
Very Good
163 reviews
Check prices

Boarding

8.2

Entertainment

6.3

Crew

8.8

Food

7.3

Overall

8.3

Comfort

7.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
Aegean Airlines
8.2
Very Good
761 reviews
Jet2
8.3
Very Good
163 reviews
Check prices

Boarding

8.2

Entertainment

6.3

Crew

8.8

Food

7.3

Overall

8.3

Comfort

7.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
Austrian Airlines
7.6
Good
809 reviews
Jet2
8.3
Very Good
163 reviews
Check prices

Boarding

8.2

Entertainment

6.3

Crew

8.8

Food

7.3

Overall

8.3

Comfort

7.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
SWISS
7.5
Good
1,654 reviews
Jet2
8.3
Very Good
163 reviews
Check prices

Boarding

8.2

Entertainment

6.3

Crew

8.8

Food

7.3

Overall

8.3

Comfort

7.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
Brussels Airlines
7.3
Good
352 reviews
Jet2
8.3
Very Good
163 reviews
Check prices

Boarding

8.2

Entertainment

6.3

Crew

8.8

Food

7.3

Overall

8.3

Comfort

7.8

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. 8 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 1 inbound flight from London per day.

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

    Cheapflights users have booked flights from London to Kos round-trip from £127. Other airlines that can offer you cheap pricing are Lufthansa, from £145, and Austrian Airlines, from £147. easyJet is currently priced 47% 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 £56. Users have also found prices from £59 and £62 on Ryanair and Jet2, 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 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 London?

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

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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 4 July 2025.
British Airways flights from London to Kos
easyJet flights from London to Kos
Ryanair flights from London to Kos

Top 8 airlines flying from London to Kos

Discover the top 8 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£35Average£185FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£100Average£217FlexibilityNo cancel feeOn-time86%
Search easyJet flights
TUI AirwaysCheapest£114Average£367FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
LufthansaCheapest£128Average£256FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Jet2Cheapest£149Average£331FlexibilityNo cancel feeOn-timeN/A
Search Jet2 flights
British AirwaysCheapest£155Average£362FlexibilityNo cancel feeOn-time70%
Search British Airways flights
SWISSCheapest£157Average£351FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aegean AirlinesCheapest£169Average£251FlexibilityNo 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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