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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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LJU
22 Jun — 29 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 23 May 2026.

Tue 30/613:05
LHR
-
LJU
Nonstop2h 15m
British Airways
Thu 9/718:25
LJU
-
LHR
Nonstop2h 20m
British Airways
Deal found 19/5£144
Tue 30/606:15
LHR
-
LJU
1 stop6h 35m
Air France
Wed 8/712:05
LJU
-
LHR
1 stop7h 30m
Air France
Deal found 19/5£166
Tue 2/607:25
LHR
-
LJU
1 stop11h 00m
Lufthansa
Sun 7/609:50
LJU
-
LHR
1 stop4h 00m
Lufthansa
Deal found 20/5£168
Sun 20/906:30
LHR
-
LJU
1 stop8h 50m
LOT
Fri 2/1017:05
LJU
-
LHR
1 stop5h 55m
LOT
Deal found 21/5£172
Mon 1/607:25
LHR
-
LJU
1 stop4h 10m
Lufthansa
Thu 11/613:20
LJU
-
LHR
1 stop4h 45m
Lufthansa
Deal found 18/5£173
Tue 16/606:55
LHR
-
LJU
1 stop11h 25m
Lufthansa
Tue 23/609:40
LJU
-
LHR
1 stop4h 10m
Lufthansa
Deal found 19/5£175
Thu 11/607:25
LHR
-
LJU
1 stop11h 00m
Lufthansa
Tue 16/609:40
LJU
-
LHR
1 stop7h 00m
Lufthansa
Deal found 22/5£176
Tue 2/610:50
LHR
-
LJU
1 stop7h 35m
Lufthansa
Tue 9/609:40
LJU
-
LHR
1 stop7h 00m
Lufthansa
Deal found 18/5£177
Fri 19/606:55
LHR
-
LJU
1 stop11h 25m
Lufthansa
Tue 23/609:40
LJU
-
LHR
1 stop4h 10m
Lufthansa
Deal found 20/5£179
Sat 10/1019:55
LHR
-
LJU
1 stop11h 55m
Air Serbia
Mon 19/1009:25
LJU
-
LHR
1 stop28h 05m
Air Serbia
Deal found 18/5£179
Wed 8/720:50
LHR
-
LJU
1 stop9h 55m
Multiple Airlines
Wed 15/713:30
LJU
-
LHR
1 stop20h 50m
Multiple Airlines
Deal found 23/5£180

Find flight deals from Heathrow to Slovenia

Keep the following information in mind while searching for Heathrow to Slovenia flight deals. Data was last updated 23 May 2026.

Round-trip from

£144

One-way from

£88

Popular in

August

Cheapest in

November

Average price

£220

Good round-trip deal

£273 or less

Good one-way deal

£148 or less
British Airways
  • British Airways
  • 30/6-9/7
  • Nonstop
  • 4h 35m total
  • London to Slovenia
Search Deals
Vueling
  • Vueling
  • 12/11
  • 1 total stop
  • 5h 45m total
  • London to Slovenia
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£41 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 May 2026
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 23 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Slovenia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Thu 18/6

07:30-13:05

1 stop4h 35m

Ljubljana Joze Pucnik

Sun 21/6

06:05-10:40

1 stop5h 35m

£211

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Mon 29/6

11:05-17:45

1 stop5h 40m

Ljubljana Joze Pucnik

Mon 6/7

06:25-10:40

1 stop5h 15m

£225

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Tue 11/8

10:50-19:25

1 stop7h 35m

Ljubljana Joze Pucnik

Sun 16/8

09:50-12:50

1 stop4h 00m

£237

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Wed 2/9

07:25-12:35

1 stop4h 10m

Ljubljana Joze Pucnik

Wed 9/9

18:30-21:35

1 stop4h 05m

£248

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Sun 9/8

13:35-19:25

1 stop4h 50m

Ljubljana Joze Pucnik

Mon 17/8

14:50-19:20

1 stop5h 30m

£249

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Sun 14/6

19:25-08:50

1 stop12h 25m

Ljubljana Joze Pucnik

Sat 20/6

15:15-18:40

1 stop28h 25m

£262

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Sat 7/11

17:50-11:40

2 stops16h 50m

Ljubljana Joze Pucnik

Wed 11/11

12:55-17:00

1 stop5h 05m

£267
Fastest return journey

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Thu 18/6

14:25-17:40

Nonstop2h 15m

Ljubljana Joze Pucnik

Sun 21/6

21:25-22:45

Nonstop2h 20m

£301

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Fri 5/6

17:10-20:30

Nonstop2h 20m

Ljubljana Joze Pucnik

Sun 7/6

21:25-22:45

Nonstop2h 20m

£320

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Thu 16/7

14:25-17:40

Nonstop2h 15m

Ljubljana Joze Pucnik

Thu 23/7

18:25-19:45

Nonstop2h 20m

£334

Flights are sorted by cheapest return flights first.

Deals found on 19/5

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Slovenia (average of £61). Flying from London Heathrow Airport to Slovenia in July is currently the most expensive (average of £168). 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 23 May 2026.

When flying from London Heathrow Airport 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 Heathrow Airport to Slovenia?

The price you pay for your flight from London Heathrow Airport to Slovenia may vary depending on when you book. For the best chance of a lower fare, look to book 37 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 23 May 2026.
Check out reviews from past customers who have flown with SWISS,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.
SWISS
7.5
Good
1,955 reviews
Check prices

Entertainment

6.8

Food

7.1

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

ZRH - JNB

The flight was good but again my luggage was delayed. The 2nd time now. I know it us at the airlines fault but maybe there have to be more control on which luggage on on which plane. Especially if a flight has been delayed.
SWISS
7.5
Good
1,955 reviews
SWISS
7.5
Good
1,955 reviews
Check prices

Entertainment

6.8

Food

7.1

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

ZRH - JNB

The flight was good but again my luggage was delayed. The 2nd time now. I know it us at the airlines fault but maybe there have to be more control on which luggage on on which plane. Especially if a flight has been delayed.
Brussels Airlines
7.2
Good
409 reviews
SWISS
7.5
Good
1,955 reviews
Check prices

Entertainment

6.8

Food

7.1

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

ZRH - JNB

The flight was good but again my luggage was delayed. The 2nd time now. I know it us at the airlines fault but maybe there have to be more control on which luggage on on which plane. Especially if a flight has been delayed.
easyJet
6.9
Okay
1,903 reviews
SWISS
7.5
Good
1,955 reviews
Check prices

Entertainment

6.8

Food

7.1

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

ZRH - JNB

The flight was good but again my luggage was delayed. The 2nd time now. I know it us at the airlines fault but maybe there have to be more control on which luggage on on which plane. Especially if a flight has been delayed.
Lufthansa
6.8
Okay
8,022 reviews
SWISS
7.5
Good
1,955 reviews
Check prices

Entertainment

6.8

Food

7.1

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

ZRH - JNB

The flight was good but again my luggage was delayed. The 2nd time now. I know it us at the airlines fault but maybe there have to be more control on which luggage on on which plane. Especially if a flight has been delayed.
British Airways
6.7
Okay
7,995 reviews
SWISS
7.5
Good
1,955 reviews
Check prices

Entertainment

6.8

Food

7.1

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

ZRH - JNB

The flight was good but again my luggage was delayed. The 2nd time now. I know it us at the airlines fault but maybe there have to be more control on which luggage on on which plane. Especially if a flight has been delayed.

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 4h 35m. Lufthansa provides one of the quickest options available for as low as £211. 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 £128. On average you can expect to pay £238. The most popular route, (London Heathrow - Ljubljana Joze Pucnik), can usually be booked for £168.

  • 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Slovenia (average of £61). Flying from London Heathrow Airport to Slovenia in July is currently the most expensive (average of £168). 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 23 May 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£113Average£162FlexibilityNo cancel feeOn-time86%
Search easyJet flights
LOTCheapest£149Average£241FlexibilityNo cancel feeOn-time81%
Search LOT flights
Brussels AirlinesCheapest£157Average£257FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
LufthansaCheapest£157Average£205FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£167Average£272FlexibilityNo cancel feeOn-time79%
Search SWISS flights
British AirwaysCheapest£189Average£293FlexibilityNo 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 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?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Slovenia for you. Better yet — we are completely free to use.

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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