LON - KGS

£52 Find Cheap Flights from London to Kos

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Kos departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Kos

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Kos.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Kos.
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Everything you should know

Cheapest return fare
£140
Multiple Airlines
Mon 19/1Mon 26/1
LTN - KGS • 1 stop
Cheapest direct flights
£205
Ryanair
Sun 17/5Sun 24/5
STN - KGS • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Jet2's 10 kg carry-on adds value over rivals.
TUI Airways' day-before bag drop eases early travel.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Aegean Airlines
Cheapest • from £167 (return)
Jet2
Best reviews • 8.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
STN-KGS
Cheapest • 51% average savings
LGW-KGS
Most popular
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Kos!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from London to Kos (LON-KGS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Kos that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Kos

Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
14:30 - 11:30
LTN
-
KGS
19h 00m1 stop
Multiple Airlines Logo
12:00 - 23:10
KGS
-
LTN
13h 10m1 stop
£140Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
18:15 - 08:05
STN
-
KGS
11h 50m1 stop
Multiple Airlines Logo
21:45 - 07:40
KGS
-
STN
11h 55m1 stop
£143Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
14:30 - 08:05
LTN
-
KGS
15h 35m1 stop
Multiple Airlines Logo
16:40 - 23:10
KGS
-
LTN
8h 30m1 stop
£145Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
14:30 - 08:05
LTN
-
KGS
15h 35m1 stop
Multiple Airlines Logo
21:45 - 11:20
KGS
-
LTN
15h 35m2 stops
£149Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
Multiple Airlines Logo
08:40 - 21:15
STN
-
KGS
10h 35m1 stop
Multiple Airlines Logo
16:40 - 23:10
KGS
-
STN
8h 30m1 stop
£150Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Aegean Airlines Logo
22:15 - 08:05
LHR
-
KGS
7h 50m1 stop
Aegean Airlines Logo
12:35 - 17:55
KGS
-
LHR
7h 20m1 stop
£167Aegean Airlines
Mon, 19 Jan - Mon, 26 Jan
Aegean Airlines Logo
22:15 - 12:05
LHR
-
KGS
11h 50m1 stop
Aegean Airlines Logo
12:35 - 21:15
KGS
-
LHR
10h 40m1 stop
£170Aegean Airlines
Sat, 30 May - Sat, 6 Jun
Brussels Airlines Logo
11:05 - 10:20
LHR
-
KGS
21h 15m1 stop
Brussels Airlines Logo
20:45 - 17:05
KGS
-
LHR
22h 20m1 stop
£223Brussels Airlines
Sat, 24 Jan - Sat, 31 Jan
Sky Express Logo
13:25 - 21:15
LGW
-
KGS
5h 50m1 stop
Sky Express Logo
21:45 - 12:25
KGS
-
LGW
16h 40m1 stop
£226Sky Express
Sat, 16 May - Sat, 30 May
Brussels Airlines Logo
11:05 - 10:20
LHR
-
KGS
21h 15m1 stop
Brussels Airlines Logo
20:45 - 10:15
KGS
-
LHR
15h 30m1 stop
£238Brussels Airlines
Booking Insights

KAYAK's insights & trends for London to Kos flights

Get data-powered insights and trends into flights from London to Kos to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London to Kos?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Kos departing in January.

What is the cheapest London to Kos flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Kos costs £125 on the route between London Stansted Airport (STN) and Kos (KGS). Over the past month, this route was, on average, 51% cheaper than other London-Kos routes. The most popular route is between London Gatwick Airport (LGW) and Kos (KGS).

Can I save money by flying with a stopover from London to Kos?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £237 on average.

Expert advice

Expert advice for your flight from London to Kos

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
British Airways

BA's Euro Traveller fares include a cabin bag, unlike budget carriers.


BA's CityFlyer offers fast travel from London City Airport to major cities.

easyJet

EasyJet's Speedy Boarding includes larger cabin bag and priority boarding.


EasyJet Plus offers free seat selection and dedicated bag drop.

TUI Airways

TUI Airways' day-before bag drop avoids long queues for early flights.


TUI's extra space seats are ideal for families, often near emergency exits.

Jet2

Jet2 offers 10 kg carry-on in basic fares, enhancing value compared to rivals.


Jet2's Twilight Check-in lets you drop bags the night before early flights.

Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways and Jet2

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Blane Bachelor

Blane Bachelor

Expert on easyJet

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Read more
Kirstie Pickering

Kirstie Pickering

Expert on TUI Airways

Kirstie Pickering

Kirstie Pickering

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Read more

Good to know - Cheap tickets from London to Kos

Low seasonApril
Cheapest flight£52
Best time to beat the crowds (42% less expensive on average)
Most popular time to fly (39% more expensive on average)
Flight from London Gatwick Airport to Kos

When to book flights from London to Kos

Are your dates flexible? Find out the best times to travel from London to Kos based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Kos

  • What is the cheapest flight from London to Kos?

    In the last 3 days, the lowest price for a flight from London to Kos was £52 for a one-way ticket and £140 for a return.

  • Which airports will I be using when flying from London to Kos?

    When flying out of London you will be using one of these airports: London City, London Gatwick, London Heathrow, London Luton, London Southend, or London Stansted. You will be landing at Kos.

  • Which aircraft models fly most regularly from London to Kos?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the London to Kos flight route.

  • Which airline alliances offer flights from London to Kos?

    Star Alliance, and oneworld are the airline alliances operating flights between London and Kos, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from London to Kos, Jet2 or Aegean Airlines?

    The two airlines most popular with KAYAK users for flights from London to Kos are Jet2 and Aegean Airlines. With an average price for the route of £281 and an overall rating of 8.3, Jet2 is the most popular choice. Aegean Airlines is also a great choice for the route, with an average price of £213 and an overall rating of 8.1.

  • How does KAYAK find such low prices on flights from London to Kos?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Kos.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Kos?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Kos?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Kos with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Kos?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kos from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Kos

  • Looking for a cheap flight from Kos to London? 25% of our users found flights on this route for £204 or less round-trip.

Reviews of the top 5 airlines flying from London to Kos

 
See real verified KAYAK customer reviews for airlines flying from London to Kos. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Kos? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
Jet2Overall score based on 178 reviews
8.1Boarding
7.3Food
6.2Entertainment
8.8Crew
7.7Comfort
Airline reviews

Waiting for 2 people to come through security that delayed the flight. Everyone else made it on time, should have left without them. Flight was cold.

4.0 OkayIain, Nov 2025
AGP - NCL
Read more Jet2 reviews

Waiting for 2 people to come through security that delayed the flight. Everyone else made it on time, should have left without them. Flight was cold.

The staff are just so friendly travelling alone was a bit scary but they made me feel comfortable and nothing was to much bother I loved how one of the girls was talking to the old ladies she really took time thank you jet2 shame I can’t get home with u guys 🥲

Crew was nice. Plane was crowded, Seats wouldn’t lean back. No free treats or drinks (not even water).

The flight was over an hour late taking off. Air traffic control on the outward flight caused the delay. Horrendous passport queue at Malaga. Families with children must dread it. Another Brexit negative

On time flight. Reasonable comfortable but a bit cramped. Excellent jet 2 staff as usual.

This is my second flight with jet 2. Both been great - lovely helpful staff. Will fly with you again

Felt very cramped, seat quality poor and temp way too warm with little ventilation. Persistent ramming of duty free ‘bargains’ donut throats. Food & drink service glacially slow.

A good flight with friendly crew and check-in but disembarking was chaotic and badly managed

The food was nice but same pud and crackers as on the way there should be different

Flights were on time, boarding was straight forward. Very good attentive staf

The food and so are to expensive and old . Crew whas not very friendly . Apparently some other passenger can just Push through the waiting people to board while almost punching me and a father with a child down the stairs. Its always something with easy jet . The seats of row 26 where lose . And for a guy of my size there is absolutely no leg room at all .

Liked. The check-in was pretty quick as they had 5 desks working.

Generally a good experience except for boarding in Naples on the flight back to London. We were all standing around for at least 20 minutes maybe longer as there was no seating.

Seats, WC,sizes for today's generation adults, and if technical problems arise a complimentary coffee, water nice for waiting one hours, the rest is perfect (pilot and cabin crew)

Boarding was smooth and quick. Flight departed on time. Equally evacuation upon landing was from both the front door and the back doors. Bags were on the conveyor belts before I got there. Excellent service.

The terminals are far away, be prepared to walk. Also, You climb stairs to the plane since there are no aero bridges. Boarding was haphazard not in multiple groups, so stand in line early. Hard to find place to stow cabin baggage if you are behind in the line. You can purchase food on the plane. There are vegetarian options.

First -the flight was late - more than two hours Second, not even a bottle of water at bord to give for free for this inconvenience. Three-at landing ive realised that I've lost one of my ear plug headphones and been very desperate to find it with my torch, the crew not helped at all more than that they asked to leave the plane as everyone did before me. This was the last flight from that day- extra 5 min for me with a bit of help from crew - would have bring a super review. I guess this days humanity disappeared!

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

sadly in Basel & Naples- no jetway we had to climb up and down stairs with our max size carry-on luggage, which was not fun!!!

Take off was great but landing is always with a bump.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

A delay of almost 3 hours. It was evident that the staff wanted us to board urgently, to the point of rudeness, to avoid paying compensation

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

On time arrival but the aircraft had seen better days and needed a deep clean.

It was appalling, full of young people who were drunk and disobeying instructions to sit down. Crew did nothing to enforce. There was a Ryanair pilot sitting in the aisle opposite me who talked through out the safety briefing so loudly I couldn’t hear. Whole thing felt unsafe

Delayed for 2 hours lack of communication no refreshments as promised and the drinks on board were not as ordered and refused to refund

Straight forward checking as long as you have completed every single detail online, prior to checking day. Efficient boarding, seating is ok for a two hour flight. Fulfilledour travel requirements from Manchester to Marseille.

I couldn’t understand the aircraft tannoy announcements I was in seat 20C - nobody in our row could either. Speakers a bit too quiet plus messages read out too fast. Otherwise excellent flight. (Flight delayed by 50 mins)

I bought my flight, insurance etc early and paid over £200. But had i waited until closer the time the price was much cheaper, i appreciate that it could've been more expensive but it wasn't. A better discount for booking early would be better than your current one

Nice lounge but had a 5 hour layover which is a lot

Flight on time and priority boarding worked. I travelled economy although business was available as no flights are cheap these days and at least with BA loyalty card I get a baggage allowance for nothing. That made the flight comparable or even cheaper than the ‘budget’ alternative. As for catering and entertainment - not on a BA short haul economy ! At least we were offered biscuits and water! Catering for economy short haul has been reduced to the minimum - no tea or coffee or other drinks than water (from a large bottle with a paper cup on offer). They will say this is better for the environment, which it is, but proper waste management is still needed for empty packets etc. so actually it’s a money saver.

Audi visual not working for a whole group of seats in first class. How does a plane leave the main hub in such poor condition? How much that we can’t see so immediately is also compromised?

main meals are horrible but then you dont fly for the food

It was good. Couldn’t Check in online and select seats

It was great. Enough space and room for legs . Great service to.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

We were in business class and I had seat # 1. This was a night flight and after dinner was served, lights were dimmed and I went to sleep. The crew were loud and noisy so I didn’t get much sleep. I expect the crew to enjoy themselves but would Appreciate some decency in staying quiet while the passengers sleep

Have travelled business class with other airlines who profess to be the best in the world. They can however not beat the service and comfort that BA provide.

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

Fine, charter flights. Plane full, and staff nice and friendly. No option for free food or drink. Entertainment through paid app.

The 737-8 is too small for the length of flight especially if there are any delays

The flight was delayed over 2 hours, we should off left the plane2 late passengers as it’s not fair on everyone who’s followed the rules.

Dreamliner. Yes great if maintained. I didn't see anyones screen work consistently during either of our flights. Worse was their ability to not only dump you out of premium but separate couples and seat someone's carer at the opposite end of the aircraft. This poor gentleman had no hand so his partner who assists him, being seated at the other end of the aircraft, well that really showed us all what Tui think :( It was fairly dire all in all, they advertise all the perks of the dreamliner only in reality you don't have the features and they change the windows and colours to suit their constant sales pitches. Ironically they were so low on stock for the return flight that all their sales pitches were a waste of time! Their contract only favours them and 'operational changes' well they cover every excuse and Tui use it. Surprisingly we haven't reinstalled the Tui app or booked with them since. It's a shame as I rated them highly during the pandemic.

One flight attendant not wearing a mask over nose, 50% of passengers not either, and no effort to correct. Boarding was very late with no information - lots of standing around waiting.

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

Information on your arrival and departure airports