In terms of precipitation, rainfall in Kos ranges from 2.0 - 169.0 inches per month. January is typically the wettest month, when rainfall can reach 169.0 mm. July is typically the driest time to visit Kos when rainfall is around 2.0 mm.

If weather is an important factor for your trip to Kos, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 10.0 C).

What is the cheapest time of day to fly from SOU to KGS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Southampton to Kos as you normally would.

Can I find deals for flights from Southampton to Kos that include hotel bookings?

Yes. In addition to deals on Southampton to Kos flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Southampton to Kos?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Kos.

Can I find deals for business class flights from Southampton to Kos?

Yes. Cheapflights offers flight deals from Southampton to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£344+ Cheap Flights from Southampton to Kos

Cheap flight deals from Southampton to Kos

Enter your travel dates to find the best prices.

Cheapest

Best

Cheapest flights from Southampton to Kos
Explore the most affordable flight options available from Southampton to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 September 2026.

Thu 5/1109:20 -

2 stops20h 25m

Thu 12/1108:25 -

3 stops26h 25m

Deal found 21/9£344

Sat 7/1108:20 -

3 stops24h 15m

Sat 14/1120:35 -

2 stops24h 05m

Deal found 23/9£377

Find flight deals from Southampton to Kos

Round-trip from	£344
Popular in	May
Cheapest in	April
Average price	£218

5/11-12/11
5 total stops
46h 50m total
Southampton to Kos

Search Deals

High demand for flights, 9% potential price rise

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£9 potential savings vs. average return price).

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Average for round-trip flights in September 2026

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SouthamptonKos

SOU Southampton Eastleigh - KGS Kos

SOUKGS

Southampton Eastleigh

Thu 5/11

09:20-07:45

2 stops20h 25m

Kos

Thu 12/11

08:25-08:50

3 stops26h 25m

£344

SouthamptonKos

SOU Southampton Eastleigh - KGS Kos

SOUKGS

Southampton Eastleigh

Sat 7/11

08:20-10:35

3 stops24h 15m

Kos

Sat 14/11

20:35-18:40

2 stops24h 05m

£377

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Sorted by cheapest first

Best time to book a flight from Southampton to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Southampton with our price prediction graph.

SOU-KGS

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Can I find deals for flights from Southampton to Kos that include hotel bookings?
Yes. In addition to deals on Southampton to Kos flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Kos?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Kos.
Can I find deals for business class flights from Southampton to Kos?
Yes. Cheapflights offers flight deals from Southampton to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Kardamena

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

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How does Cheapflights help users find flights from Southampton to Kos?

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Why should you use Cheapflights to find cheap flight tickets from Southampton to Kos?

Cheapflights helps you find that perfect flight to Kos from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Southampton to Kos with no change fees?

Yes, we can. To see specific flights from Southampton to Kos with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Southampton to Kos become cheaper?

Not ready to book yet? You can track prices for flights from Southampton to Kos on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Southampton to Kos from £344

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Kos

Cheapest flights from Southampton to KosExplore the most affordable flight options available from Southampton to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 September 2026.

Explore the most affordable flight options available from Southampton to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 September 2026.

Best flights from Southampton to KosDiscover carefully curated flight deals from Southampton to Kos that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.

Discover carefully curated flight deals from Southampton to Kos that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.

Find flight deals from Southampton to Kos

Round-trip from

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Average price

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Use the filters below to find and compare flights from Southampton to Kos that are best for you.

Best time to book a flight from Southampton to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Southampton with our price prediction graph.

Related info for your journey

Can I find deals for flights from Southampton to Kos that include hotel bookings?

How can I find direct flights from Southampton to Kos?

Can I find deals for business class flights from Southampton to Kos?

Travelling to a place near Kos?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southampton to Kos

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Kos by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to South Aegean

Book a non-stop flight to one of these other cities located in South Aegean.

Search flights from Southampton to Kos by cabin class

Find flights from Southampton to Kos, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Kos

Explore flights to Kos departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 25 September 2026.

Southampton and Kos flights

Browse other Southampton and Kos flight options. Last updated on 25 September 2026.

Other flights from Southampton

Browse through other flights departing from Southampton. Flights are based on user searches made on Cheapflights and were last updated on 25 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Southampton to Kos?

Why should you use Cheapflights to find cheap flight tickets from Southampton to Kos?

Can Cheapflights find flights from Southampton to Kos with no change fees?

Can Cheapflights notify me if prices for flights from Southampton to Kos become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Southampton to Kos
Explore the most affordable flight options available from Southampton to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 September 2026.

Best flights from Southampton to Kos
Discover carefully curated flight deals from Southampton to Kos that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.