LHR - KGS

£98 Find Cheap Flights from London Heathrow Airport 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 Heathrow to Kos departing on 15/4. 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Kos, as well as popular online travel agencies
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Cheap Flights from Heathrow to Kos (LHR-KGS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow 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 Heathrow to Kos

Tue, 9 Dec - Tue, 16 Dec
Aegean Airlines Logo
22:15 - 08:05LHR-KGS
7h 50m1 stop
Aegean Airlines Logo
16:40 - 21:15KGS-LHR
6h 35m1 stop
£196Aegean Airlines
Find Deal
Tue, 9 Dec - Tue, 16 Dec
Multiple Airlines Logo
07:40 - 21:15LHR-KGS
11h 35m1 stop
Multiple Airlines Logo
09:25 - 21:55KGS-LHR
14h 30m2 stops
£237Multiple Airlines
Find Deal
Sat, 8 Nov - Sun, 16 Nov
Aegean Airlines Logo
22:15 - 12:05LHR-KGS
11h 50m1 stop
Aegean Airlines Logo
21:05 - 11:10KGS-LHR
16h 05m1 stop
£244Aegean Airlines
Find Deal
Fri, 12 Dec - Sun, 14 Dec
Multiple Airlines Logo
06:30 - 17:05LHR-KGS
8h 35m2 stops
Multiple Airlines Logo
21:05 - 17:55KGS-LHR
22h 50m1 stop
£259Multiple Airlines
Find Deal
Sat, 8 Nov - Sun, 16 Nov
Aegean Airlines Logo
22:15 - 12:05LHR-KGS
11h 50m1 stop
Aegean Airlines Logo
19:55 - 11:10KGS-LHR
17h 15m2 stops
£266Aegean Airlines
Find Deal
Sat, 8 Nov - Sun, 16 Nov
Multiple Airlines Logo
06:35 - 19:25LHR-KGS
10h 50m1 stop
Multiple Airlines Logo
21:05 - 15:50KGS-LHR
20h 45m2 stops
£290Multiple Airlines
Find Deal
Tue, 9 Dec - Tue, 16 Dec
Multiple Airlines Logo
08:30 - 20:05LHR-KGS
9h 35m2 stops
Multiple Airlines Logo
12:35 - 21:40KGS-LHR
11h 05m2 stops
£294Multiple Airlines
Find Deal
Sat, 8 Nov - Sun, 16 Nov
Aegean Airlines Logo
16:35 - 20:05LHR-KGS
25h 30m1 stop
Aegean Airlines Logo
17:35 - 11:10KGS-LHR
19h 35m1 stop
£300Aegean Airlines
Find Deal
Fri, 12 Dec - Sun, 14 Dec
Aegean Airlines Logo
22:15 - 08:05LHR-KGS
7h 50m1 stop
Aegean Airlines Logo
21:05 - 17:55KGS-LHR
22h 50m1 stop
£302Aegean Airlines
Find Deal
Wed, 1 Apr - Sun, 5 Apr
Aegean Airlines Logo
22:15 - 12:35LHR-KGS
12h 20m1 stop
Aegean Airlines Logo
06:00 - 17:55KGS-LHR
13h 55m1 stop
£313Aegean Airlines
Find Deal

Everything you should know

Cheapest return fare
£196
Aegean Airlines
Tue 9/12Tue 16/12
LHR - KGS • 1 stop
Cheapest one-way flight
£98
Typical prices: £261-£302
Aegean Airlines
Wed 15/4
LHR - KGS • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Kos!
Booking Insights

KAYAK's insights & trends for Heathrow to Kos flights

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

Which airlines fly direct between London Heathrow Airport and Kos?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from London Heathrow Airport to Kos.

There are 3 airlines that fly direct from London Heathrow Airport to Kos. They are: Aegean Airlines, British Airways and Lufthansa. The cheapest price of all airlines flying this route was found with Lufthansa at £136 for a return flight. On average, the best prices for this route can be found at Lufthansa.

Good to know - Cheap tickets from London Heathrow Airport to Kos

Low seasonApril
Cheapest flight£98
Best time to beat the crowds (35% less expensive on average)
Most popular time to fly (34% more expensive on average)
Flight from London Heathrow Airport to Kos

When to book flights from Heathrow to Kos

Are your dates flexible? Find out the best times to travel from Heathrow 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 London Heathrow Airport to Kos flights

  • What is the cheapest flight from London Heathrow Airport to Kos?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Kos was £98 for a one-way ticket and £196 for a return.

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

    London Heathrow Airport and Kos are both served by 1 main airport. You will leave London Heathrow Airport from London Heathrow and will be arriving at Kos.

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

    The Airbus A320neo is the aircraft model that flies most regularly on the London Heathrow Airport to Kos flight route.

  • Which airline alliances offer flights from London Heathrow Airport to Kos?

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

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

    The two airlines most popular with KAYAK users for flights from London to Kos are Aegean Airlines and Lufthansa. With an average price for the route of £282 and an overall rating of 8.1, Aegean Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of £209 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 Heathrow Airport to Kos.

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

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

  • What is the Hacker Fare option on flights from London Heathrow Airport 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 Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport 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 Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines flying from Heathrow 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 Heathrow 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.
8.1
Aegean AirlinesOverall score based on 814 reviews
7.8Boarding
8.6Crew
7.9Comfort
6.9Entertainment
7.4Food
Airline reviews

The seat was hard as a rock. Business class seats were coach seats with no one in the middle. Service and food were excellent.

8.0 ExcellentAnonymous, Oct 2025MXP - ATH
Read more Aegean Airlines reviews

The seat was hard as a rock. Business class seats were coach seats with no one in the middle. Service and food were excellent.

The crew was awesome. There was a school group of about 60 14 year-olds. The food is standard greek fare, Baklava was pre-packaged like it would normally be sold in a vending machine, and it was the highlight of the meal. Plane was in great shape, and seating was like a any A319 you would experience at a national-level carrier (i.e. not like Ryan Air). Like many European airports, they bused us to the plane, so the process of boarding groups is useless, and not well understood by infrequent travelers.

Departing from the Parikia apport on Paros was chaos. It is a 3rd world airport, and my home has more square footage. Olympic Air has several instances where there are less than two hours between flights leaving Paros. Further, there are two airlines at the airport, so airport resources are limited. With only one check in desk for each airline, the folks who are getting on the earlier flight are the only people who are able to check in. So, don't get there too early to check in. Also, the airport waiting area, after you go through security only holds about 1/2 of a plane's worth of people. So, the security line also has the same restrictions as the check in desks. Depending upon what time you get there, two queues will extend into the entry road. If your plan departs within the hour, go up to the front of the building and check to see which flight they are checking in or running through security.

Every one was attentive, the food was really very good . All and all was an excellent experience .

There was no enterteinment onboard. Food was good, and service too.

It was a short flight. It did leave about 15 minutes late but other than that everything went well!! There was no food service or entertainment so can’t comment on any of that.

Not good, the seat was broken and the middle seat table was not lowering, no option on the food, despite the business class wasn’t full. In the menu offered they had fish or chicken, no chicken available when was my turn (seating in raw 2!)

For a quick trip to athens they did a great job plane was spacious, and we boarded quickly.

it was hard to find the check in at the airport no signs food was average

Short flight. Was not told if there was a kosher option for the snack.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

All was good, except my USB charging did not work, so my phone got drained and I could not charge it. Same happened to my neighbour.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

One one boarding scanner was working to scan 400+ passengers to an Airbus 380. Food in premium economy was mediocre.

The plane was late (as was my flight out from Birmingham the day before)

Best flight attendants ever! Very customer and service oriented, courteous, professional and helpful.

The flight was delayed by an hour. Made the connection uncomfortably tight.

Excellent once on board. Security staff at Johannesburg rude and aggressive.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

After living in Europe for five years and flying with Lufthansa and KLM airlines, I’ve realized that United Airlines is now a budget carrier. The flight attendant are not friendly. The seats are not comfortable. And everything comes at a cost. I will be flying with KLM and Skyteam like Delta to the US going forward no doubt. United Airlines is not what it once was:

We always use BA due to the direct flight options, we have always had a pleasant flight with BA.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Horrible leg room - coach seating with empty seat in middle on a 3 across seating. You buy business class for comfort which includes leg room. Absolutely no entertainment options either. Awful experience

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

No WiFi in either flight. No leg room, the seat in front of me left dents on my knees and the tray was so low my knees propped it up if I tried to use it.

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

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

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