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.
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 |
Find flight deals from London to Kos
Cheapest flights from London to KosExplore 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.
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.
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
Fly to
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
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
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
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
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
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
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
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
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
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
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.
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.
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
Anonymous,Mar 2025
GVA - LBA
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
Anonymous,Mar 2025
GVA - LBA
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
Anonymous,Mar 2025
GVA - LBA
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
Anonymous,Mar 2025
GVA - LBA
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
Anonymous,Mar 2025
GVA - LBA
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
Anonymous,Mar 2025
GVA - LBA
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.
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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.
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.
Fly with Cheapflights
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How does Cheapflights help users find flights from London to Kos?
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Why should you use Cheapflights to find cheap flight tickets from London to Kos?
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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.