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Cheap flights from Southampton to Southeast Europe from £99

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ATH
4 Feb — 11 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Southeast Europe

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Southeast Europe
Explore the most affordable flight options available from Southampton to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 January 2026.

Mon 6/419:20SOU - ATH
1 stop13h 10mMultiple Airlines
Fri 10/404:10ATH - SOU
1 stop6h 45mMultiple Airlines
Deal found 4/1£186
Sat 4/420:05SOU - ATH
1 stop13h 20mMultiple Airlines
Fri 10/404:10ATH - SOU
1 stop6h 45mMultiple Airlines
Deal found 4/1£195
Tue 3/209:20SOU - BEG
2 stops14h 55mMultiple Airlines
Sun 8/218:25BEG - SOU
1 stop25h 55mMultiple Airlines
Deal found 4/1£196
Wed 18/217:35SOU - OTP
1 stop17h 25mKLM
Wed 25/206:00OTP - SOU
1 stop13h 00mKLM
Deal found 4/1£198
Mon 6/419:20SOU - ATH
1 stop13h 10mMultiple Airlines
Thu 9/421:30ATH - SOU
1 stop13h 25mMultiple Airlines
Deal found 4/1£199
Sun 5/417:20SOU - ATH
1 stop5h 50mKLM
Thu 9/417:25ATH - SOU
1 stop17h 10mKLM
Deal found 4/1£209
Sat 4/420:05SOU - ATH
1 stop13h 20mMultiple Airlines
Thu 9/421:30ATH - SOU
1 stop13h 25mMultiple Airlines
Deal found 4/1£210
Wed 18/209:25SOU - OTP
2 stops12h 05mMultiple Airlines
Wed 25/215:35OTP - SOU
1 stop19h 10mMultiple Airlines
Deal found 4/1£212
Sat 4/420:05SOU - ATH
1 stop13h 20mMultiple Airlines
Tue 7/417:25ATH - SOU
1 stop17h 10mMultiple Airlines
Deal found 4/1£212
Tue 10/209:20SOU - BEG
2 stops14h 55mMultiple Airlines
Sun 15/218:25BEG - SOU
1 stop25h 55mMultiple Airlines
Deal found 4/1£215
Sun 5/409:15SOU - ATH
1 stop13h 55mKLM
Sat 11/417:25ATH - SOU
1 stop17h 20mKLM
Deal found 4/1£219
Sat 4/420:05SOU - ATH
1 stop13h 20mMultiple Airlines
Wed 8/417:25ATH - SOU
1 stop17h 10mMultiple Airlines
Deal found 4/1£222

Find flight deals from Southampton to Southeast Europe

Keep the following information in mind while searching for Southampton to Southeast Europe flight deals. Data was last updated 5 January 2026.

Round-trip from

£186

One-way from

£99

Popular in

August

Cheapest in

January

Average price

£40
6/4-10/4
  • 6/4-10/4
  • 2 total stops
  • 19h 55m total
  • Southampton to Southeast Europe
Search Deals
13/1
  • 13/1
  • 2 total stops
  • 26h 55m total
  • Southampton to Southeast Europe
Search Deals
Highest demand for flights based on searches. 40% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Southeast Europe 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 5 January 2026.
Use the filters below to find and compare flights from Southampton to Southeast Europe that are best for you.

Fly from

Southampton

Fly to

Southeast Europe

Route

Depart

Return

Price

SouthamptonBucharest

SOU - OTP

SOUOTP

Southampton Eastleigh

Wed 18/2

17:35-13:00

1 stop17h 25m

Bucharest Otopeni Intl

Wed 25/2

06:00-17:00

1 stop13h 00m

£198

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 5/4

17:20-01:10

1 stop5h 50m

Athens Eleftherios V.

Thu 9/4

17:25-08:35

1 stop17h 10m

£209

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sat 4/4

20:05-11:25

1 stop13h 20m

Athens Eleftherios V.

Thu 9/4

21:30-08:55

1 stop13h 25m

£210

SouthamptonBucharest

SOU - OTP

SOUOTP

Southampton Eastleigh

Wed 18/2

09:25-23:30

2 stops12h 05m

Bucharest Otopeni Intl

Wed 25/2

15:35-08:45

1 stop19h 10m

£212

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sat 4/4

20:05-11:25

1 stop13h 20m

Athens Eleftherios V.

Tue 7/4

17:25-08:35

1 stop17h 10m

£212

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Tue 7/4

17:20-01:10

1 stop5h 50m

Athens Eleftherios V.

Sat 11/4

17:25-08:45

1 stop17h 20m

£219

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 6/4

09:05-01:10

1 stop14h 05m

Athens Eleftherios V.

Sat 11/4

17:25-08:45

1 stop17h 20m

£219

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 5/4

09:15-01:10

1 stop13h 55m

Athens Eleftherios V.

Sat 11/4

17:25-08:45

1 stop17h 20m

£219

SouthamptonBelgrade

SOU - BEG

SOUBEG

Southampton Eastleigh

Tue 3/2

09:20-01:15

2 stops14h 55m

Belgrade Nikola Tesla

Mon 9/2

06:35-19:20

1 stop13h 45m

£227

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 5/4

09:15-01:10

1 stop13h 55m

Athens Eleftherios V.

Sun 12/4

17:25-08:35

1 stop17h 10m

£230

Flights are sorted by cheapest return flights first.

Deals found on 4/1

Showing 1-10 of 35 results
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Best time to book a flight from Southampton to Southeast Europe

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

Cheapflights Insights

Everything you need to know about your flight from Southampton to Southeast Europe

What is the cheapest month to book a flight from Southampton to Southeast Europe?

Currently, February is the cheapest month in which you can book a flight from Southampton to Southeast Europe (average of £21). Flying from Southampton to Southeast Europe in August is currently the most expensive (average of £53). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Southeast Europe

Get insights into the airlines that provide service to Southeast Europe. 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 Southeast Europe. Reviews last updated 5 January 2026.
Check out reviews from past customers who have flown with KLM from Southampton to Southeast Europe to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,434 reviews
Check prices

Crew

8.4

Entertainment

7.1

Boarding

7.8

Food

7.2

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Crew

8.4

Entertainment

7.1

Boarding

7.8

Food

7.2

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from Southampton to Southeast Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Southampton to Southeast Europe?

    Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Southampton to Southeast Europe.

  • How long is the flight from Southampton to Southeast Europe?

    KLM and British Airways can get you from Southampton to Southeast Europe in just under 17h 25m. Your travel time can differ by up to 27h. Airlines will cover a distance of 1339 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Southampton to Southeast Europe?

    When deciding which route to take from Southampton to Southeast Europe consider Southampton Eastleigh - Athens Eleftherios V., Southampton Eastleigh - Bucharest Otopeni Intl or Southampton Eastleigh - Heraklion N. Kazantzakis Apt. as they are the most popular.

  • Can I find deals for flights from Southampton to Southeast Europe that include hotel bookings?

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

  • How can I find direct flights from Southampton to Southeast Europe?

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

  • Can I find deals for business class flights from Southampton to Southeast Europe?

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

  • What is the cheapest month to book a flight from Southampton to Southeast Europe?

    Currently, February is the cheapest month in which you can book a flight from Southampton to Southeast Europe (average of £21). Flying from Southampton to Southeast Europe in August is currently the most expensive (average of £53). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Southampton to Southeast Europe

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Top airline flying from Southampton to Southeast Europe

Discover the top airline that operate flights from Southampton to Southeast Europe. 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 5 January 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£163Average£300FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southampton to Southeast Europe?

Cheapflights makes it easy to find Southampton to Southeast Europe flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Southampton to Southeast Europe for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Southampton to Southeast Europe with no change fees.

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

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

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