How long is the flight from Southampton to Slovenia?

A quick flight from Southampton to Slovenia can take about 4h 35m. KLM provides one of the quickest options available for as low as £329. Airlines will cover a distance of 790 mi.

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.

£284+ 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 4 September 2026.

Thu 15/1009:20 -

2 stops23h 35m

Thu 22/1021:35 -

1 stop12h 10m

Deal found 31/8£284

Mon 19/1012:25 -

2 stops20h 15m

Mon 26/1015:05 -

3 stops18h 45m

Deal found 4/9£300

Mon 19/1017:20 -

1 stop4h 35m

Mon 26/1012:55 -

1 stop20h 15m

Deal found 4/9£329

Thu 15/1017:20 -

1 stop4h 35m

Thu 22/1014:00 -

1 stop19h 35m

Deal found 31/8£531

Sun 4/1012:35 -

2 stops24h 40m

Wed 7/1018:00 -

2 stops43h 05m

Deal found 1/9£634

Find flight deals from Southampton to Slovenia

Round-trip from	£284
Popular in	August
Cheapest in	November
Average price	£222

15/10-22/10
3 total stops
35h 45m total
Southampton to Slovenia

Search Deals

Highest demand for flights based on searches. 24% potential increase in price (£44 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

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Thu 15/10

09:20-09:55

2 stops23h 35m

Ljubljana Joze Pucnik

Thu 22/10

21:35-08:45

1 stop12h 10m

£284

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Mon 19/10

17:20-22:55

1 stop4h 35m

Ljubljana Joze Pucnik

Mon 26/10

12:55-08:10

1 stop20h 15m

£329

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Mon 19/10

19:20-20:05

3 stops23h 45m

Ljubljana Joze Pucnik

Mon 26/10

15:05-08:50

3 stops18h 45m

£348

Fastest return journey

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Thu 15/10

17:20-22:55

1 stop4h 35m

Ljubljana Joze Pucnik

Thu 22/10

14:00-08:35

1 stop19h 35m

£531

SouthamptonLjubljana

SOU Southampton Eastleigh - LJU Ljubljana Joze Pucnik

SOULJU

Southampton Eastleigh

Sun 4/10

12:35-14:15

2 stops24h 40m

Ljubljana Joze Pucnik

Wed 7/10

18:00-12:05

2 stops43h 05m

£634

Flights are sorted by cheapest return flights first.

Deals found on 31/8

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 4h 35m. KLM provides one of the quickest options available for as low as £329. Airlines will cover a distance of 790 mi.
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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Cheapflights helps you find that perfect flight to Slovenia 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!

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Cheap flights from Southampton to Slovenia from £284

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. 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 4 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 4 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 4 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 4 September 2026.

Last-minute flights from Southampton to SloveniaDiscover last-minute flight deals from Southampton to Slovenia. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to Slovenia. Data last updated 4 September 2026 and is based on user searches.

Find flight deals from Southampton to Slovenia

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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

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

Alternative routes for Southampton to Slovenia

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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 4 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 4 September 2026.

Last-minute flights from Southampton to Slovenia
Discover last-minute flight deals from Southampton to Slovenia. Data last updated 4 September 2026 and is based on user searches.