Cheap Flights from Southampton (SOU) to Kos (KGS)

Popular airlines from Southampton (SOU) to Kos (KGS-Kos Island Intl.)

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Frequently asked questions

How much does a flight from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS) cost?
Lock in a cheap one-way flight or cheap return flight from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS)?
Flying in may help you find better deals, as it's the cheapest month for flights between SOU and KGS. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SOU to KGS flight.
How many flights per day from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS)?
You'll need to take a flight with a layover when traveling from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SOU to KGS?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS)?
To avoid potential delays on the Southampton Airport (SOU) to Kos Island Intl. Airport (KGS) route, aim to travel before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS) last-minute?
Last-minute fares from SOU to KGS are typically more expensive. For the lowest rates, start searching for flights ahead of time. That being said, if your travel plans are flexible, it's possible to land a cheap fare right before you leave.
Is it cheaper to book a SOU to KGS flight and hotel package?
Opting for a SOU to KGS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our impressive range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Southampton Airport (SOU) to Kos Island Intl. Airport (KGS)?
If you reserved your SOU to KGS flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Southampton
Destination airport
Kos Island Intl.
Distance
1704 mi

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Southampton to Kos Flights

The cheapest times to fly from Southampton to Kos

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Southampton to Kos are during the month of . You can find some of the cheapest flights from Southampton to Kos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Southampton to Kos

Sunday is one of the best days to book for cheap flights from Southampton to Kos: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Southampton to Kos

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Southampton to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Southampton to Kos flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Southampton to Kos airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Southampton to Kos Flights

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*Available to One Key members.