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Cheap flights from London Heathrow Airport to Slovenia from £88

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LJU
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to Slovenia

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Slovenia
Explore the most affordable flight options available from Heathrow to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.

Thu 11/1206:35LHR - LJU
1 stop5h 05mLufthansa
Thu 18/1220:10LJU - LHR
1 stop3h 45mLufthansa
Deal found 13/11£153
Fri 12/1220:05LHR - LJU
1 stop16h 55mMultiple Airlines
Sun 14/1209:45LJU - LHR
1 stop7h 05mMultiple Airlines
Deal found 12/11£154
Wed 3/1206:30LHR - LJU
1 stop5h 35mLOT
Sun 7/1213:45LJU - LHR
1 stop9h 15mLOT
Deal found 13/11£165
Fri 12/1206:30LHR - LJU
1 stop5h 35mLOT
Fri 19/1213:45LJU - LHR
1 stop9h 15mLOT
Deal found 13/11£166
Fri 5/1206:30LHR - LJU
1 stop5h 35mLOT
Fri 19/1213:45LJU - LHR
1 stop9h 15mLOT
Deal found 13/11£169
Thu 11/1210:35LHR - LJU
1 stop25h 30mLOT
Tue 16/1217:10LJU - LHR
1 stop17h 25mLOT
Deal found 12/11£170
Fri 21/1107:40LHR - LJU
1 stop10h 50mLufthansa
Mon 24/1109:45LJU - LHR
1 stop8h 20mLufthansa
Deal found 12/11£176
Thu 20/1107:40LHR - LJU
1 stop4h 00mLufthansa
Tue 25/1106:35LJU - LHR
1 stop4h 10mLufthansa
Deal found 12/11£183
Fri 26/1220:15LHR - LJU
1 stop11h 50mMultiple Airlines
Sun 28/1213:40LJU - LHR
1 stop4h 25mMultiple Airlines
Deal found 12/11£185
Thu 20/1120:15LHR - LJU
1 stop11h 50mLufthansa
Mon 24/1120:10LJU - LHR
1 stop3h 45mLufthansa
Deal found 12/11£186

Cheap flight deals from Heathrow to Slovenia

Keep the following information in mind while searching for Heathrow to Slovenia flight deals. Data was last updated 14 November 2025.

Round-trip from

£142

One-way from

£88

Popular in

August

Cheapest in

March

Average price

£139

Good round-trip deal

£214 or less

Good one-way deal

£111 or less
Lufthansa
  • Lufthansa
  • 16/1-19/1
  • 2 total stops
  • 16h 50m total
  • London to Slovenia
Search Deals
Air Serbia
  • Air Serbia
  • 4/12
  • 1 total stop
  • 18h 05m total
  • London to Slovenia
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Slovenia.
Search Deals
Price to beat on a one-way flight from London Heathrow to Slovenia.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 14 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Slovenia that are best for you.

Fly from

Heathrow

Fly to

Slovenia

Route

Depart

Return

Price

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Fri 16/1

08:45-19:30

1 stop9h 45m

Ljubljana Joze Pucnik

Thu 22/1

20:10-22:55

1 stop3h 45m

£148

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Thu 15/1

13:50-19:30

1 stop4h 40m

Ljubljana Joze Pucnik

Thu 22/1

20:10-22:55

1 stop3h 45m

£148

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Sat 17/1

20:15-09:05

1 stop11h 50m

Ljubljana Joze Pucnik

Sat 24/1

09:45-17:05

1 stop8h 20m

£156

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Wed 15/4

10:50-19:15

1 stop7h 25m

Ljubljana Joze Pucnik

Mon 20/4

14:05-17:40

1 stop4h 35m

£157

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Thu 16/4

09:00-19:20

1 stop9h 20m

Ljubljana Joze Pucnik

Sun 19/4

06:25-10:40

1 stop5h 15m

£157

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Wed 15/4

10:50-19:15

1 stop7h 25m

Ljubljana Joze Pucnik

Sat 18/4

14:00-18:40

1 stop5h 40m

£157

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Wed 14/1

06:50-12:55

1 stop5h 05m

Ljubljana Joze Pucnik

Thu 22/1

20:10-22:55

1 stop3h 45m

£160

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Thu 16/4

13:30-14:25

1 stop23h 55m

Ljubljana Joze Pucnik

Fri 17/4

20:45-19:10

1 stop23h 25m

£166

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Fri 12/12

06:30-13:05

1 stop5h 35m

Ljubljana Joze Pucnik

Fri 19/12

13:45-22:00

1 stop9h 15m

£166

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Wed 15/4

13:30-09:00

1 stop18h 30m

Ljubljana Joze Pucnik

Fri 17/4

20:45-19:10

1 stop23h 25m

£166

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 24 results
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2
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Best time to book a flight from Heathrow to Slovenia

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

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

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Slovenia (average of £118). Flying from London Heathrow Airport to Slovenia in July is currently the most expensive (average of £185). 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 LHR to SI?

Find hourly flight availability from Heathrow 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 14 November 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Slovenia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 46% on airfare.

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 14 November 2025.
Check out reviews from past customers who have flown with LOT, Brussels Airlines, andeasyJet from London Heathrow Airport to Slovenia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.5
Good
1,134 reviews
Check prices

Overall

7.5

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
LOT
7.5
Good
1,134 reviews
LOT
7.5
Good
1,134 reviews
Check prices

Overall

7.5

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Brussels Airlines
7.2
Good
369 reviews
LOT
7.5
Good
1,134 reviews
Check prices

Overall

7.5

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
easyJet
6.9
Okay
1,842 reviews
LOT
7.5
Good
1,134 reviews
Check prices

Overall

7.5

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Lufthansa
6.8
Okay
7,572 reviews
LOT
7.5
Good
1,134 reviews
Check prices

Overall

7.5

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
British Airways
6.7
Okay
7,520 reviews
LOT
7.5
Good
1,134 reviews
Check prices

Overall

7.5

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow Airport to Slovenia?

    A quick flight from London Heathrow Airport to Slovenia can take about 9h 45m. Lufthansa provides one of the quickest options available for as low as £148. The distance from London Heathrow Airport to Slovenia is about 766 mi.

  • What are the cheapest flights from London Heathrow Airport to Slovenia?

    The cheapest flight price from London Heathrow Airport to Slovenia is £100. On average you can expect to pay £197. The most popular route, (London Heathrow - Ljubljana Joze Pucnik), can usually be booked for £150.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Slovenia?

    Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Slovenia (average of £118). Flying from London Heathrow Airport to Slovenia in July is currently the most expensive (average of £185). 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 Heathrow to Slovenia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Heathrow to Slovenia

Discover the top 6 airlines that operate flights from Heathrow 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£94Average£203FlexibilityNo cancel feeOn-time86%
Search easyJet flights
SWISSCheapest£139Average£200FlexibilityNo cancel feeOn-time79%
Search SWISS flights
British AirwaysCheapest£149Average£298FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£152Average£195FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
LOTCheapest£152Average£258FlexibilityNo cancel feeOn-time81%
Search LOT flights
Brussels AirlinesCheapest£159Average£262FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Slovenia?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Slovenia from Heathrow today with Cheapflights!

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

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Can Cheapflights find flights from Heathrow to Slovenia with no change fees?

Certainly. Search results for flights to Slovenia from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

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

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