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Cheap flights from London to Slovenia from £36

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LJU
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Slovenia

Enter your travel dates to find the best prices.

Cheapest flights from London to Slovenia
Explore the most affordable flight options available from London to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2026.

Tue 25/817:10
LHR
-
LJU
1 stop4h 45m
KLM
Fri 4/914:00
LJU
-
LHR
1 stop6h 25m
KLM
Deal found 28/6£173
Sun 30/817:40
LGW
-
LJU
Nonstop2h 15m
easyJet
Tue 8/910:25
LJU
-
LGW
Nonstop2h 20m
easyJet
Deal found 28/6£173
Wed 29/709:55
LHR
-
LJU
1 stop12h 00m
KLM
Wed 5/806:00
LJU
-
LHR
1 stop5h 45m
KLM
Deal found 29/6£173
Mon 19/1007:00
LGW
-
LJU
Nonstop2h 15m
easyJet
Wed 28/1012:20
LJU
-
LGW
Nonstop2h 25m
easyJet
Deal found 30/6£173
Tue 8/906:00
STN
-
LJU
2 stops25h 50m
Multiple Airlines
Tue 15/913:55
LJU
-
STN
2 stops10h 55m
Multiple Airlines
Deal found 30/6£174
Wed 7/1006:30
LHR
-
LJU
1 stop17h 00m
Multiple Airlines
Sun 11/1009:25
LJU
-
LHR
1 stop10h 15m
Multiple Airlines
Deal found 30/6£174
Mon 20/721:05
LGW
-
LJU
2 stops34h 45m
Multiple Airlines
Sat 25/717:50
LJU
-
LGW
1 stop9h 10m
Multiple Airlines
Deal found 28/6£174
Sun 18/1009:15
STN
-
LJU
1 stop11h 25m
Multiple Airlines
Sun 25/1009:45
LJU
-
STN
2 stops14h 10m
Multiple Airlines
Deal found 29/6£175
Tue 11/811:45
LHR
-
LJU
1 stop10h 10m
KLM
Tue 18/806:00
LJU
-
LHR
1 stop5h 45m
KLM
Deal found 27/6£175
Sun 23/806:10
LGW
-
LJU
1 stop10h 05m
Multiple Airlines
Thu 27/808:30
LJU
-
LGW
1 stop10h 25m
Multiple Airlines
Deal found 30/6£175
Sat 29/811:45
LHR
-
LJU
1 stop10h 10m
KLM
Fri 4/914:00
LJU
-
LHR
1 stop6h 25m
KLM
Deal found 30/6£176
Thu 22/1007:05
LGW
-
LJU
Nonstop2h 15m
easyJet
Wed 28/1012:20
LJU
-
LGW
Nonstop2h 25m
easyJet
Deal found 30/6£176

Find flight deals from London to Slovenia

Keep the following information in mind while searching for London to Slovenia flight deals. Data was last updated 1 July 2026.

Round-trip from

£173

One-way from

£36

Popular in

August

Cheapest in

November

Average price

£263

Good round-trip deal

£117 or less

Good one-way deal

£79 or less
KLM
  • KLM
  • 25/8-4/9
  • 2 total stops
  • 11h 10m total
  • London to Slovenia
Search Deals
easyJet
  • easyJet
  • 29/9
  • Nonstop
  • 2h 15m total
  • London to Slovenia
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to Slovenia.
Search Deals
Price to beat on a one-way flight from London (LON) to Slovenia.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Slovenia 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 1 July 2026.
Use the filters below to find and compare flights from London to Slovenia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Mon 19/10

13:30-08:50

1 stop18h 20m

Ljubljana Joze Pucnik

Mon 26/10

09:45-12:25

1 stop27h 40m

£179

LondonLjubljana

LTN - LJU

LTNLJU

London Luton

Wed 2/9

16:30-07:45

1 stop14h 15m

Ljubljana Joze Pucnik

Wed 9/9

17:35-15:45

2 stops23h 10m

£180

LondonLjubljana

LTN - LJU

LTNLJU

London Luton

Wed 29/7

12:45-08:50

2 stops19h 05m

Ljubljana Joze Pucnik

Wed 5/8

17:35-01:50

1 stop9h 15m

£185

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Thu 6/8

07:25-12:35

1 stop4h 10m

Ljubljana Joze Pucnik

Mon 10/8

06:25-10:40

1 stop5h 15m

£195

LondonLjubljana

LTN - LJU

LTNLJU

London Luton

Mon 28/9

21:20-17:15

2 stops18h 55m

Ljubljana Joze Pucnik

Wed 30/9

20:40-14:25

3 stops18h 45m

£195

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Sat 15/8

11:45-22:55

1 stop10h 10m

Ljubljana Joze Pucnik

Tue 18/8

06:00-16:15

1 stop11h 15m

£198

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Sun 11/10

19:25-08:50

1 stop12h 25m

Ljubljana Joze Pucnik

Fri 23/10

20:40-19:05

1 stop23h 25m

£198

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Mon 3/8

06:55-12:35

1 stop4h 40m

Ljubljana Joze Pucnik

Wed 12/8

10:10-14:40

1 stop5h 30m

£199

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Mon 23/11

13:20-19:50

1 stop5h 30m

Ljubljana Joze Pucnik

Fri 27/11

09:45-12:25

1 stop27h 40m

£199

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Wed 15/7

17:15-22:40

1 stop4h 25m

Ljubljana Joze Pucnik

Wed 22/7

06:25-10:40

1 stop5h 15m

£199

Flights are sorted by cheapest return flights first.

Deals found on 28/6

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from London to Slovenia

Have a flexible travel schedule? Discover the best time to fly to Slovenia from London 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 London to Slovenia

What is the cheapest month to book a flight from London to Slovenia?

Currently, January is the cheapest month in which you can book a flight from London to Slovenia (average of £27). Flying from London to Slovenia in July is currently the most expensive (average of £106). 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.

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

Find hourly flight availability from London to Slovenia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 July 2026.

When flying from London 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.

How far ahead should I book a flight from London to Slovenia?

The price you pay for your flight from London to Slovenia may vary depending on when you book. For the best chance of a lower fare, look to book 12 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Slovenia

Get insights into the airlines that provide service to Slovenia. 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 Slovenia. Reviews last updated 1 July 2026.
Get a feel of what it's like to fly with SWISS,Brussels Airlines, andeasyJet from London to Slovenia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,982 reviews
Check prices

Food

7.1

Comfort

7.4

Boarding

7.7

Crew

8.3

Entertainment

6.8

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
SWISS
7.5
Good
1,982 reviews
SWISS
7.5
Good
1,982 reviews
Check prices

Food

7.1

Comfort

7.4

Boarding

7.7

Crew

8.3

Entertainment

6.8

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Brussels Airlines
7.2
Good
417 reviews
SWISS
7.5
Good
1,982 reviews
Check prices

Food

7.1

Comfort

7.4

Boarding

7.7

Crew

8.3

Entertainment

6.8

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
easyJet
6.9
Okay
1,914 reviews
SWISS
7.5
Good
1,982 reviews
Check prices

Food

7.1

Comfort

7.4

Boarding

7.7

Crew

8.3

Entertainment

6.8

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Lufthansa
6.8
Okay
8,109 reviews
SWISS
7.5
Good
1,982 reviews
Check prices

Food

7.1

Comfort

7.4

Boarding

7.7

Crew

8.3

Entertainment

6.8

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
British Airways
6.7
Okay
8,087 reviews
SWISS
7.5
Good
1,982 reviews
Check prices

Food

7.1

Comfort

7.4

Boarding

7.7

Crew

8.3

Entertainment

6.8

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Related info for your journey

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

  • How long is the flight from London to Slovenia?

    There are many flights that can get you from London to Slovenia in 4h 10m. Fly via Air Serbia, Lufthansa, or KLM to get the fastest option. There are 766 mi between London and Slovenia. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London to Slovenia one-way?

    To fly one-way, consider booking your trip with easyJet, which is currently one of the cheapest options available, starting at £39. Lufthansa flights start at £97 while deals on British Airways start at £99 one-way.

  • What are the most popular routes from London to Slovenia?

    While some choose either London Gatwick - Ljubljana Joze Pucnik or London Stansted - Ljubljana Joze Pucnik, London Heathrow - Ljubljana Joze Pucnik is the most popular route from London to Slovenia.

  • What are the cheapest flights from London to Slovenia?

    Looking for the cheapest flight from London to Slovenia? While on average our users pay £288, our data indicates the cheapest price to be £153. The most popular route (London Heathrow - Ljubljana Joze Pucnik), is priced around £167.

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

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

  • How can I find direct flights from London to Slovenia?

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

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

    Yes. Cheapflights offers flight deals from London 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.

  • What is the cheapest month to book a flight from London to Slovenia?

    Currently, January is the cheapest month in which you can book a flight from London to Slovenia (average of £27). Flying from London to Slovenia in July is currently the most expensive (average of £106). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to Slovenia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from London to Slovenia

Discover the top 4 airlines that operate flights from London to Slovenia. 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 1 July 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£88Average£186FlexibilityNo cancel feeOn-time86%
Search easyJet flights
LufthansaCheapest£149Average£205FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£169Average£275FlexibilityNo cancel feeOn-time79%
Search SWISS flights
British AirwaysCheapest£186Average£288FlexibilityNo cancel feeOn-time70%
Search British Airways 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 London to Slovenia?

When you search for this flight from London 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.

Why should you use Cheapflights to find cheap flight tickets from London to Slovenia?

Cheapflights helps you find that perfect flight to Slovenia from London 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 London to Slovenia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Slovenia flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from London to Slovenia and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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