Cheap flights from London Heathrow Airport to Kos from £90
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 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Heathrow to Kos
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 11 July 2025.
Round-trip from | £135 |
---|---|
One-way from | £90 |
Popular in | December |
Cheapest in | January |
Average price | £293 |
Find flight deals from Heathrow to Kos
Cheapest flights from Heathrow to KosExplore the most affordable flight options available from Heathrow to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.
Explore the most affordable flight options available from Heathrow to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Heathrow 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 11 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Kos that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Wed 10/9
10:50-19:05
1 stop6h 15m
Kos
Wed 17/9
19:55-08:15
1 stop14h 20m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Tue 30/9
19:30-20:50
1 stop23h 20m
Kos
Mon 6/10
20:50-08:20
1 stop13h 30m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Fri 26/9
18:30-08:50
1 stop12h 20m
Kos
Fri 3/10
21:35-09:00
1 stop13h 25m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Mon 22/9
22:15-10:45
1 stop10h 30m
Kos
Tue 30/9
18:25-11:15
1 stop18h 50m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Thu 21/8
20:05-15:10
1 stop17h 05m
Kos
Tue 26/8
20:30-08:15
2 stops37h 45m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Fri 1/8
17:50-19:35
1 stop23h 45m
Kos
Tue 5/8
11:15-17:05
1 stop7h 50m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Mon 11/8
08:05-18:55
1 stop8h 50m
Kos
Wed 13/8
09:20-14:05
1 stop6h 45m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Wed 27/8
22:15-00:05
1 stop23h 50m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Tue 19/8
20:40-21:45
1 stop23h 05m
LondonKos
LHR - KGS
LHRKGS
London Heathrow
Tue 12/8
08:45-17:30
1 stop6h 45m
Best time to book a flight from Heathrow to Kos
Have a flexible travel schedule? Discover the best time to fly to Kos from Heathrow with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Kos
What is the cheapest time of day to fly from LHR to KGS?
Find hourly flight availability from Heathrow 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 11 July 2025.
A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Kos in the afternoon. If you’re flexible enough to do this you can expect to save up to 58% on your trip compared to booking a flight in the morning.
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 11 July 2025.
Check out reviews from past customers who have flown with Aegean Airlines, Austrian Airlines, andSWISS from London Heathrow Airport to Kos to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Boarding
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Crew
Boarding
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Crew
Boarding
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Crew
Boarding
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Crew
Boarding
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Crew
Boarding
Overall
Food
Comfort
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near London Heathrow Airport?
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Alternative routes for Heathrow to Kos
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Heathrow to Kos
Discover the top 3 airlines that operate flights from Heathrow 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 11 July 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Heathrow to Kos?
Cheapflights helps you search for flights from Heathrow to Kos via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Kos?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Kos.
Can Cheapflights find flights from Heathrow to Kos with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Kos flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Heathrow to Kos become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!