Cheap flights from London Heathrow Airport to Kos from £104
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Kos departing on 8/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London Heathrow Airport to Kos
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Aegean Airlines flights from London Heathrow Airport to Kos
Our best Aegean Airlines deals on London Heathrow Airport to Kos flight tickets
SWISS flights from London Heathrow Airport to Kos
Our best SWISS deals on London Heathrow Airport to Kos flight tickets
See travel insights to Kos from
How to get the cheapest flight ticket from London Heathrow Airport to Kos
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between London Heathrow Airport and Kos?
What is the cheapest day to depart on your flight to Kos?
According to our data, Monday is the cheapest day to fly to Kos from London Heathrow Airport. The lowest ticket price found for a Monday departure recently was £70. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Kos is Saturday, with ticket prices averaging around £393.
What is the cheapest time of day to depart on your flight to Kos?
Our most recent data shows that the best time of day to fly to Kos is in the afternoon. Flights from London Heathrow Airport to Kos during this time can be as low as £196. At midday is when there is more demand to fly to Kos, so prices are often more expensive at around £289 per ticket.
What is the cheapest London Heathrow to Kos flight route?
Fly from London Heathrow to Kos for the best London Heathrow - Kos flight prices
How far in advance should I book a flight to Kos?
You are more likely to see cheaper flights to Kos from London Heathrow Airport when booking 18 weeks ahead of your departure date. In general, you can expect to find flights to Kos for around £302 when searching 18 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kos from London Heathrow Airport for as low as £204 on momondo.
What is the cheapest airline that flies from London Heathrow to Kos?
Aegean Airlines, Eurowings, and SWISS are the most popular carriers operating from London Heathrow to Kos
Which airlines fly to Kos?
British Airways, Aegean Airlines and SWISS are the top three most popular airlines that fly to Kos from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 42% of people opting to fly with this airline when travelling to Kos. Keep in mind that there are 7 different airlines that fly to Kos on a routine basis, so you have a few additional options to choose from.
When to book flights from London Heathrow Airport to Kos
Cheap London Heathrow Airport to Kos (LHR to KGS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Kos
How far is London Heathrow to Kos by plane?
A flight from London Heathrow to Kos will travel around 1686.2 mi. Typically, this will take 6h 05m by plane in normal conditions.
When did momondo last update prices for flights from London Heathrow Airport to Kos Airport?
Prices for flights from London Heathrow Airport to Kos Airport refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Kos Airport?
The number of operators available for flights from London Heathrow Airport to Kos Airport is 7 as of April 2025.
How old do you have to be to fly from London Heathrow Airport to Kos Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Kos Airport.
What documentation or ID do you need to fly to Kos Airport?
The required travel and health documents for your Kos Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kos Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to Kos?
Based on momondo bookings for flights between London Heathrow Airport and Kos, the leading plane model is Airbus A320neo, making up 26.67% of the total bookings. Other popular models include Airbus A321-100/200 with 20.00%, Boeing 737-800 Passenger/BBJ2 (winglets) with 20.00%, and Airbus A320-100/200 with 20.00%.
What is the most popular airline from London Heathrow Airport to Kos?
Based on momondo bookings for flights between London Heathrow Airport and Kos, the leading airline is British Airways, making up 33% of the total bookings. Other popular airlines include Aegean Airlines with 24%, SWISS with 11%, and Lufthansa with 9%.
Best airlines flying from London Heathrow Airport to Kos
Compare and see reviews for airlines that fly from London Heathrow Airport to Kos with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £120 | Free Cancellation | Rating 6.9 1,792 reviews | |||
| PriceFrom £135 | Free Cancellation | Rating 6.7 6,963 reviews | |||
| PriceFrom £171 | Free Cancellation | Rating 7.5 1,572 reviews | |||
| PriceFrom £177 | Free Cancellation | Rating 8.3 161 reviews | |||
| PriceFrom £178 | Free Cancellation | Rating 8.1 730 reviews | |||
| PriceFrom £214 | Free Cancellation | Rating 6.6 6,715 reviews | |||
| PriceFrom £224 | Free Cancellation | Rating 6.6 274 reviews |
Travelling to a place near Kos?
Book flights to Kos if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to Kos?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kos from London.
Can I find flights from London to Kos with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Kos from London with this policy.
How can momondo help me find flights from London to Kos?
Once you have performed a search for London to Kos flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from London to Kos right now. Can momondo alert me if prices change?
If you are not ready to book a flight from London to Kos now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Kos and let you know when they change.