How long is the flight from Southampton to Slovenia?

A quick flight from Southampton to Slovenia can take about 17h 45m. KLM provides one of the quickest options available for as low as £292. Airlines will cover a distance of 790 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Slovenia ranges from 40.0 - 70.0 inches per month. October is typically the wettest month, when rainfall can reach 70.0 mm. January is typically the driest time to visit Slovenia when rainfall is around 40.0 mm.

If weather is an important factor for your trip to Slovenia, 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 19.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

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

When flying from Southampton to Slovenia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Southampton to Slovenia?

Most people fly from Southampton Eastleigh (SOU) if they book a flight from Southampton to Slovenia. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

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

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

How can I find direct flights from Southampton to Slovenia?

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

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

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

£248+ Cheap Flights from Southampton to Slovenia

Cheap flight deals from Southampton to Slovenia

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

Cheapest flights from Southampton to Slovenia
Explore the most affordable flight options available from Southampton to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Thu 29/1017:10 -

2 stops14h 50m

Thu 5/1117:55 -

1 stop21h 15m

Deal found 14/9£248

Thu 29/1017:35 -

1 stop17h 45m

Thu 5/1112:55 -

1 stop20h 15m

Deal found 14/9£292

Sun 20/909:15 -

1 stop12h 35m

Mon 21/920:20 -

2 stops36h 45m

Deal found 15/9£405

Sun 20/909:15 -

1 stop12h 35m

Mon 21/914:00 -

1 stop19h 35m

Deal found 15/9£458

Sun 18/1008:55 -

2 stops28h 20m

Wed 21/1018:00 -

2 stops19h 05m

Deal found 15/9£516

Fri 9/1019:30 -

2 stops48h 05m

Fri 16/1021:15 -

2 stops20h 00m

Deal found 14/9£517

Sun 18/1008:55 -

2 stops28h 20m

Sat 24/1012:20 -

2 stops25h 45m

Deal found 15/9£577

Mon 12/1012:35 -

2 stops51h 40m

Sun 18/1021:25 -

2 stops15h 40m

Deal found 18/9£624

Find flight deals from Southampton to Slovenia

Round-trip from	£248
Popular in	August
Cheapest in	November
Average price	£254

29/10-5/11
3 total stops
36h 05m total
Southampton to Slovenia

Search Deals

Highest demand for flights based on searches. 26% potential increase in price (£51 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Thu 29/10

17:35-12:20

1 stop17h 45m

Ljubljana Joze Pucnik

Thu 5/11

12:55-08:10

1 stop20h 15m

£292

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Thu 29/10

12:25-14:25

3 stops25h 00m

Ljubljana Joze Pucnik

Thu 5/11

17:10-14:10

3 stops22h 00m

£358

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Sun 18/10

08:55-14:15

2 stops28h 20m

Ljubljana Joze Pucnik

Wed 21/10

18:00-12:05

2 stops19h 05m

£516

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Fri 9/10

19:30-20:35

2 stops48h 05m

Ljubljana Joze Pucnik

Fri 16/10

21:15-16:15

2 stops20h 00m

£517

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Sun 18/10

08:55-14:15

2 stops28h 20m

Ljubljana Joze Pucnik

Sat 24/10

12:20-13:05

2 stops25h 45m

£577

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Mon 12/10

12:35-17:15

2 stops51h 40m

Ljubljana Joze Pucnik

Sun 18/10

21:25-12:05

2 stops15h 40m

£624

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Sorted by cheapest first

Best time to book a flight from Southampton to Slovenia

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

SOU-LJU

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 Slovenia

SOU-SI0

SOU-LJU

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly from for flights from Southampton to Slovenia?
Most people fly from Southampton Eastleigh (SOU) if they book a flight from Southampton to Slovenia. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.
How long is the flight from Southampton to Slovenia?
A quick flight from Southampton to Slovenia can take about 17h 45m. KLM provides one of the quickest options available for as low as £292. Airlines will cover a distance of 790 mi. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Southampton to Slovenia that include hotel bookings?
Yes. In addition to deals on Southampton to Slovenia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Slovenia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Slovenia.
Can I find deals for business class flights from Southampton to Slovenia?
Yes. Cheapflights offers flight deals from Southampton to Slovenia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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When you search for this flight from Southampton to Slovenia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Cheap flights from Southampton to Slovenia from £248

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Slovenia

Cheapest flights from Southampton to SloveniaExplore the most affordable flight options available from Southampton to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Explore the most affordable flight options available from Southampton to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Southampton to SloveniaDiscover carefully curated flight deals from Southampton to Slovenia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from Southampton to Slovenia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Southampton to SloveniaDiscover last-minute flight deals from Southampton to Slovenia. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to Slovenia. Data last updated 18 September 2026 and is based on user searches.

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Best time to book a flight from Southampton to Slovenia

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Related info for your journey

What airport do you fly from for flights from Southampton to Slovenia?

How long is the flight from Southampton to Slovenia?

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

How can I find direct flights from Southampton to Slovenia?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Southampton to Slovenia

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Search flights from Southampton to Slovenia by cabin class

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

Southampton and Slovenia flights

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

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Cheapest flights from Southampton to Slovenia
Explore the most affordable flight options available from Southampton to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Southampton to Slovenia
Discover carefully curated flight deals from Southampton to Slovenia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Southampton to Slovenia
Discover last-minute flight deals from Southampton to Slovenia. Data last updated 18 September 2026 and is based on user searches.