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Cheap flight tickets from Kos to London Heathrow

Compare Kos to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Kos to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Kos to London Heathrow? Find the lowest prices on one-way and return tickets right here.
London.RM996 per passenger.Departing Thu, 2 Apr, returning Wed, 8 Apr.Return flight with SWISS.Outbound indirect flight with SWISS, departs from Kos on Thu, 2 Apr, arriving in London Heathrow.Inbound indirect flight with SWISS, departs from London Heathrow on Wed, 8 Apr, arriving in Kos.Price includes taxes and charges.From RM996, select.
London.RM1,090 per passenger.Departing Wed, 18 Mar, returning Sun, 22 Mar.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Kos on Wed, 18 Mar, arriving in London Heathrow.Inbound indirect flight with Aegean Airlines, departs from London Heathrow on Sun, 22 Mar, arriving in Kos.Price includes taxes and charges.From RM1,090, select.
London.RM1,123 per passenger.Departing Mon, 25 May, returning Tue, 2 Jun.Return flight with SWISS.Outbound indirect flight with SWISS, departs from Kos on Mon, 25 May, arriving in London Heathrow.Inbound indirect flight with SWISS, departs from London Heathrow on Tue, 2 Jun, arriving in Kos.Price includes taxes and charges.From RM1,123, select.
London.RM1,186 per passenger.Departing Fri, 4 Sep, returning Sat, 12 Sep.Return flight with Brussels Airlines.Outbound indirect flight with Brussels Airlines, departs from Kos on Fri, 4 Sep, arriving in London Heathrow.Inbound indirect flight with Brussels Airlines, departs from London Heathrow on Sat, 12 Sep, arriving in Kos.Price includes taxes and charges.From RM1,186, select.
London.RM1,189 per passenger.Departing Sun, 29 Mar, returning Sat, 4 Apr.Return flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from Kos on Sun, 29 Mar, arriving in London Heathrow.Inbound indirect flight with Aegean Airlines, departs from London Heathrow on Sat, 4 Apr, arriving in Kos.Price includes taxes and charges.From RM1,189, select.
London.RM1,325 per passenger.Departing Sun, 26 Apr, returning Fri, 1 May.Return flight with Brussels Airlines.Outbound indirect flight with Brussels Airlines, departs from Kos on Sun, 26 Apr, arriving in London Heathrow.Inbound indirect flight with Brussels Airlines, departs from London Heathrow on Fri, 1 May, arriving in Kos.Price includes taxes and charges.From RM1,325, select.
London.RM1,366 per passenger.Departing Fri, 5 Jun, returning Fri, 3 Jul.Return flight with Ryanair and Eurowings.Outbound indirect flight with Ryanair, departs from Kos on Fri, 5 Jun, arriving in London Heathrow.Inbound indirect flight with Eurowings, departs from London Heathrow on Fri, 3 Jul, arriving in Kos.Price includes taxes and charges.From RM1,366, select.
London.RM1,382 per passenger.Departing Mon, 22 Jun, returning Tue, 23 Jun.Return flight with SWISS.Outbound indirect flight with SWISS, departs from Kos on Mon, 22 Jun, arriving in London Heathrow.Inbound indirect flight with SWISS, departs from London Heathrow on Tue, 23 Jun, arriving in Kos.Price includes taxes and charges.From RM1,382, select.

Find the cheapest month to fly from Kos to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kos to London Heathrow flights are currently cheapest in April.
Feb
from RM1,423
Mar
from RM1,090
Apr
from RM996
May
from RM1,511
Jun
from RM1,382
Jul
from RM1,956
Aug
from RM2,329
Sep
from RM1,186
Oct
from RM1,816
Nov
Find prices
Dec
Find prices
Jan
Find prices

Kos to London Heathrow: Alternative routes

Compare routes from Kos to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

London City

12km from central London
Closest
from RM1,198
Search flights

London Heathrow

23km from central London
from RM996
Search flights

London Gatwick

40km from central London
from RM293
Search flights

London Luton

45km from central London
from RM805
Search flights

London Stansted

49km from central London
Cheapest
from RM251
Search flights

London Southend

57km from central London
from RM2,059
Search flights

Kos to London: Flight information

The things to know before you go.
Cheapest flight foundRM996
Cheapest month to flyApril

Check out these London Heathrow hotels

Ready to plan your stay? Other travellers rate these London Heathrow hotels for cleanliness, service and location.
Staybridge Suites London - Heathrow Bath Road by IHG
1.28 km from London Heathrow
RM365
Per night
Holiday Inn London Heathrow - Bath Road by IHG
1.26 km from London Heathrow
RM327
Per night
Renaissance London Heathrow Hotel
1.07 km from London Heathrow
RM445
Per night
Staybridge Suites London - Heathrow Bath Road by IHG
1.28 km from London Heathrow
RM365
Per night
Holiday Inn London Heathrow - Bath Road by IHG
1.26 km from London Heathrow
RM327
Per night
Renaissance London Heathrow Hotel
1.07 km from London Heathrow
RM445
Per night
Explore top-rated hotels

Finding cheap flights from Kos to London Heathrow: Frequently asked questions

The best price we found for a return flight from Kos to London Heathrow is RM996. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Kos to London Heathrow. But we found flights with one or more stops from RM996.
As of February 2026, there are no flights flying from Kos to London Heathrow.
The cheapest month to fly from Kos to London Heathrow is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kos Airport to London Heathrow Airport on Thursday, 2 April 2026.
No airlines currently offer direct flights between Kos Airport and London Heathrow Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, SWISS offers the cheapest flight tickets to London Heathrow.

Flying from Kos Airport (KGS) to London Heathrow Airport (LHR): what you need to know

  • Hop on a direct flight from Kos Airport to London Heathrow Airport and you'll be travelling for an average of 4 hours 10 minutes.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to catch your KGS to LHR flight.

  • You'll likely experience bigger queues during popular months like August. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a smart move.

  • British Airways is your gateway to exploring London (and maybe even some other exciting corners of United Kingdom!). Check out the direct flights from Kos Airport to London Heathrow Airport offered by this carrier.

  • British Airways tops the list for bookings on this route.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Kos Airport to London Heathrow Airport, uncheck 'Direct flights only.' Then, pick a flight that has a stop long enough to explore the city of your choice. Stopovers between KGS and LHR include:

    • Stuttgart Airport

    • Eleftherios Venizelos International Airport

    • Frankfurt Airport

How to find the cheapest flights from Kos Airport (KGS) to London Heathrow Airport (LHR)

  • RM445 is the lowest price for a one-way Kos Airport to London Heathrow Airport flight. Return flights start at RM996. These prices can change based on demand.

  • Book six months before your departure date. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from KGS to LHR.

  • May is the cheapest month for flights from Kos Airport to London Heathrow Airport. If you need to travel at a different time of year, the 'Whole month' tool will give you the lowest prices for every month.

  • You won't have to check every day to find out if fares have dropped when you create a Price Alert. We'll let you know the moment there's a change in price on cheap flights from KGS to LHR.

  • Tailor your trip using filters. Select your arrival and departure times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Kos Airport to London Heathrow Airport.

Handy information about Kos Airport (KGS)

  • 89.58% of flights leaving Kos Airport arrive at their destination on time. With its impressive on-time stats, delays are unlikely when setting off from KGS.

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport is roughly 31 kilometres from central London. The drive time takes about 55 minutes.

  • Travelling by public transport will take you around 1 hour.

When to fly to London Heathrow Airport (LHR)

  • July is the most popular month for flights from Kos Airport to London Heathrow Airport. To steer clear of the crowds, head to London in February.

  • Lock in your flight from Kos Airport to London Heathrow Airport for July if you'd like to explore London during its warmest month. Expect temperatures of between 11ºC (52ºF) and 26ºC (79ºF).

  • January has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from KGS to LHR sometime around then if you'd rather travel in cooler conditions.

Explore more of United Kingdom

  • You've seen London, now it's time to discover more of United Kingdom. Travel about 161 kilometres north-west to Birmingham to check off its leading sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, you've got a jam-packed schedule ahead.

  • If you're interested in discovering another corner of United Kingdom, head for Bristol, roughly 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are the start of reasons to visit.

Plan the rest of your trip from Kos to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.