Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Southampton to Southeast Europe from £134

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to Southeast Europe departing on 20/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

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.
Search flight deals

Find the cheapest flights from Southampton to Southeast Europe

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:55 - 13:40SOU-OTP
15h 45m1 stop
Multiple Airlines Logo
20:50 - 17:20OTP-SOU
22h 30m2 stops
£216Multiple Airlines
Find Deal
Mon, 15 Dec - Wed, 31 Dec
Multiple Airlines Logo
19:55 - 13:40SOU-OTP
15h 45m1 stop
Multiple Airlines Logo
20:50 - 14:50OTP-SOU
20h 00m2 stops
£226Multiple Airlines
Find Deal
Mon, 15 Dec - Mon, 5 Jan
Multiple Airlines Logo
19:50 - 13:40SOU-OTP
15h 50m1 stop
Multiple Airlines Logo
20:50 - 17:20OTP-SOU
22h 30m2 stops
£226Multiple Airlines
Find Deal
Fri, 12 Dec - Wed, 31 Dec
KLM Logo
17:30 - 23:25SOU-BEG
4h 55m1 stop
KLM Logo
06:05 - 08:50BEG-SOU
27h 45m1 stop
£287KLM
Find Deal
Mon, 9 Mar - Fri, 13 Mar
KLM Logo
17:30 - 11:55SOU-BEG
17h 25m1 stop
KLM Logo
06:05 - 17:00BEG-SOU
11h 55m1 stop
£288KLM
Find Deal
Mon, 9 Mar - Fri, 13 Mar
KLM Logo
18:05 - 12:20SOU-LJU
17h 15m1 stop
KLM Logo
12:50 - 08:50LJU-SOU
21h 00m1 stop
£312KLM
Find Deal
Thu, 26 Mar - Mon, 30 Mar
KLM Logo
18:05 - 12:20SOU-LJU
17h 15m1 stop
KLM Logo
12:20 - 08:50LJU-SOU
21h 30m2 stops
£314KLM
Find Deal
Thu, 26 Mar - Mon, 30 Mar
British Airways Logo
12:35 - 00:45SOU-OTP
10h 10m2 stops
British Airways Logo
18:15 - 09:25OTP-SOU
17h 10m2 stops
£391British Airways
Find Deal
Mon, 30 Mar - Tue, 31 Mar
British Airways Logo
06:50 - 02:15SOU-ATH
17h 25m2 stops
British Airways Logo
07:55 - 17:40ATH-SOU
11h 45m2 stops
£412British Airways
Find Deal
Mon, 30 Mar - Tue, 31 Mar
British Airways Logo
06:50 - 02:15SOU-ATH
17h 25m2 stops
British Airways Logo
18:30 - 09:25ATH-SOU
16h 55m2 stops
£412British Airways
Find Deal
Mon, 30 Mar - Tue, 31 Mar

British Airways flights from Southampton to Southeast Europe

Our best British Airways deals on Southampton to Southeast Europe flight tickets
British Airways
30 Mar
SOU12:35Southampton Eastleigh
10h 10m
2 stops
OTP00:45Bucharest Otopeni Intl
31 Mar
OTP18:15Bucharest Otopeni Intl
17h 10m
2 stops
SOU09:25Southampton Eastleigh
£391
Find similar
British Airways
30 Mar
SOU06:50Southampton Eastleigh
17h 25m
2 stops
ATH02:15Athens Eleftherios V.
31 Mar
ATH07:55Athens Eleftherios V.
11h 45m
2 stops
SOU17:40Southampton Eastleigh
£412
Find similar
British Airways
30 Mar
SOU06:50Southampton Eastleigh
17h 25m
2 stops
ATH02:15Athens Eleftherios V.
31 Mar
ATH18:30Athens Eleftherios V.
16h 55m
2 stops
SOU09:25Southampton Eastleigh
£412
Find similar

KLM flights from Southampton to Southeast Europe

Our best KLM deals on Southampton to Southeast Europe flight tickets
KLM
9 Mar
SOU17:30Southampton Eastleigh
4h 55m
1 stop
BEG23:25Belgrade Nikola Tesla
13 Mar
BEG06:05Belgrade Nikola Tesla
27h 45m
1 stop
SOU08:50Southampton Eastleigh
£287
Find similar
KLM
9 Mar
SOU17:30Southampton Eastleigh
17h 25m
1 stop
BEG11:55Belgrade Nikola Tesla
13 Mar
BEG06:05Belgrade Nikola Tesla
11h 55m
1 stop
SOU17:00Southampton Eastleigh
£288
Find similar
KLM
26 Mar
SOU18:05Southampton Eastleigh
17h 15m
1 stop
LJU12:20Ljubljana Joze Pucnik
30 Mar
LJU12:50Ljubljana Joze Pucnik
21h 00m
1 stop
SOU08:50Southampton Eastleigh
£312
Find similar

momondo 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, momondo users made 279,928 searches. Data last updated 10 November 2025.
Use the filters below to find and compare flights from Southampton to Southeast Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBucharest

SOU - OTP

SOUOTP

Southampton Eastleigh

Mon 15/12

19:55-13:40

1 stop15h 45m

Bucharest Otopeni Intl

Wed 31/12

20:50-17:20

2 stops22h 30m

£216

SouthamptonBucharest

SOU - OTP

SOUOTP

Southampton Eastleigh

Mon 15/12

19:55-13:40

1 stop15h 45m

Bucharest Otopeni Intl

Mon 5/1

20:50-14:50

2 stops20h 00m

£226

SouthamptonBucharest

SOU - OTP

SOUOTP

Southampton Eastleigh

Fri 12/12

19:50-13:40

1 stop15h 50m

Bucharest Otopeni Intl

Wed 31/12

20:50-17:20

2 stops22h 30m

£226

SouthamptonBelgrade

SOU - BEG

SOUBEG

Southampton Eastleigh

Mon 9/3

17:30-23:25

1 stop4h 55m

Belgrade Nikola Tesla

Fri 13/3

06:05-08:50

1 stop27h 45m

£287

SouthamptonBelgrade

SOU - BEG

SOUBEG

Southampton Eastleigh

Mon 9/3

17:30-11:55

1 stop17h 25m

Belgrade Nikola Tesla

Fri 13/3

06:05-17:00

1 stop11h 55m

£288

SouthamptonLjubljana

SOU - LJU

SOULJU

Southampton Eastleigh

Thu 26/3

18:05-12:20

1 stop17h 15m

Ljubljana Joze Pucnik

Mon 30/3

12:50-08:50

1 stop21h 00m

£312

SouthamptonLjubljana

SOU - LJU

SOULJU

Southampton Eastleigh

Thu 26/3

18:05-12:20

1 stop17h 15m

Ljubljana Joze Pucnik

Mon 30/3

12:20-08:50

2 stops21h 30m

£314

SouthamptonBucharest

SOU - OTP

SOUOTP

Southampton Eastleigh

Mon 30/3

12:35-00:45

2 stops10h 10m

Bucharest Otopeni Intl

Tue 31/3

18:15-09:25

2 stops17h 10m

£391

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 30/3

06:50-02:15

2 stops17h 25m

Athens Eleftherios V.

Tue 31/3

07:55-17:40

2 stops11h 45m

£412

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 30/3

06:50-02:15

2 stops17h 25m

Athens Eleftherios V.

Tue 31/3

18:30-09:25

2 stops16h 55m

£412

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Southeast Europe from

How to get the cheapest flight ticket from Southampton to Southeast Europe

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 cheapest day to depart on your flight to Southeast Europe?

The cheapest day to depart from Southampton to Southeast Europe is on a Thursday. Travellers who choose to depart for Southeast Europe on a Thursday will often find tickets for as low as £215. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £304. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Europe.

What is the cheapest time of day to depart on your flight to Southeast Europe?

In the afternoon is the cheapest time of day to fly from Southampton to Southeast Europe when you can find flight prices for as low as £227. Flying to Southeast Europe in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Southeast Europe are more costly in the morning, with an average ticket price of £286. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Southampton to Southeast Europe flights?

No. A direct flight is the cheapest option for a flight between Southampton to Southeast Europe.

Cheap Southampton to Southeast Europe flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to Southeast Europe

Direct flights

None
There are no direct flights from Southampton to Southeast Europe. There are no popular flight routes from Southampton to Southeast Europe.
Search flight deals

  • When did momondo last update prices for flights from Southampton Eastleigh Airport to Southeast Europe?

    Prices for flights from Southampton Eastleigh Airport to Southeast Europe are refreshed on a daily basis.

  • How many operators does momondo search for flights from Southampton Eastleigh Airport to Southeast Europe?

  • How old do you have to be to fly from Southampton Eastleigh Airport to Southeast Europe?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Southampton Eastleigh Airport to Southeast Europe.

  • What documentation or ID do you need to fly to Southeast Europe?

    The travel and health documents required for your trip to Southeast Europe can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southeast Europe. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Southampton to Southeast Europe?

Best airlines flying from Southampton to Southeast Europe

Compare and see reviews for airlines that fly from Southampton to Southeast Europe with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom £171Free CancellationRating
7.7
1,410 reviews
Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to Southeast Europe?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Southampton to Southeast Europe. momondo saves you time and could save you money on your trip.

Can I find flights from Southampton to Southeast Europe with flexible booking policies on momondo?

All flight searches from Southampton to Southeast Europe on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Southampton to Southeast Europe?

Once you have performed a search for Southampton to Southeast Europe 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 Southampton to Southeast Europe right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Southeast Europe, momondo offers a useful price alert feature which will track prices for flights to Southeast Europe from Southampton and alert you when they change.

An easier way to manage your Southeast Europe trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/12
Wed 17/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Southeast Europe

Popular Cities in Southeast Europe

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £30
Flights to Bangkokfrom £332
Flights to New Yorkfrom £255
Flights to Dubaifrom £216
Flights to Manchesterfrom £31
Flights to Istanbulfrom £59
Flights to Islamabadfrom £393
Flights to Jeddahfrom £123
Flights to Manilafrom £438
Flights to New Delhifrom £316
Flights to Mumbaifrom £305
Flights to Lisbonfrom £35