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Cheap flights from London Heathrow Airport to Slovenia from £85

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 17/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LJU
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

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 16 January 2026.

Round-trip from

£142

One-way from

£85

Popular in

August

Cheapest in

March

Average price

£163

Good round-trip deal

£244 or less
Lufthansa
  • Lufthansa
  • 20/2-23/2
  • 2 total stops
  • 13h 30m total
  • London to Slovenia
Search Deals
British Airways
  • British Airways
  • 17/4
  • Nonstop
  • 2h 20m total
  • London to Slovenia
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£33 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 January 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Slovenia.
Search Deals

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 16 January 2026.

Fri 20/208:45
LHR
-
LJU
1 stop9h 45m
Lufthansa
Mon 23/220:10
LJU
-
LHR
1 stop3h 45m
Lufthansa
Deal found 14/1£142
Thu 19/207:40
LHR
-
LJU
1 stop4h 00m
Lufthansa
Tue 24/213:20
LJU
-
LHR
1 stop10h 35m
Lufthansa
Deal found 14/1£143
Thu 12/208:45
LHR
-
LJU
1 stop9h 45m
Lufthansa
Thu 19/220:10
LJU
-
LHR
1 stop3h 45m
Lufthansa
Deal found 15/1£145
Thu 26/213:50
LHR
-
LJU
1 stop4h 40m
Lufthansa
Mon 2/320:10
LJU
-
LHR
1 stop3h 45m
Lufthansa
Deal found 14/1£145
Thu 19/207:40
LHR
-
LJU
1 stop4h 00m
Lufthansa
Wed 25/210:00
LJU
-
LHR
1 stop4h 00m
Lufthansa
Deal found 14/1£147
Thu 5/213:50
LHR
-
LJU
1 stop4h 40m
Lufthansa
Mon 9/220:10
LJU
-
LHR
1 stop3h 45m
Lufthansa
Deal found 14/1£148
Sat 25/409:00
LHR
-
LJU
1 stop9h 25m
Lufthansa
Wed 29/413:15
LJU
-
LHR
1 stop4h 50m
Lufthansa
Deal found 15/1£148
Thu 12/308:45
LHR
-
LJU
1 stop9h 45m
Lufthansa
Mon 16/320:10
LJU
-
LHR
1 stop3h 45m
Lufthansa
Deal found 15/1£150
Thu 23/413:40
LHR
-
LJU
1 stop4h 50m
Lufthansa
Mon 27/414:05
LJU
-
LHR
1 stop4h 35m
Lufthansa
Deal found 14/1£151
Wed 11/206:50
LHR
-
LJU
1 stop5h 05m
Multiple Airlines
Wed 18/210:00
LJU
-
LHR
1 stop6h 50m
Multiple Airlines
Deal found 14/1£151
Thu 9/413:40
LHR
-
LJU
1 stop4h 50m
Lufthansa
Sun 12/406:05
LJU
-
LHR
1 stop11h 35m
Lufthansa
Deal found 14/1£152
Fri 6/213:50
LHR
-
LJU
1 stop4h 40m
Lufthansa
Tue 10/210:35
LJU
-
LHR
1 stop5h 10m
Lufthansa
Deal found 14/1£154

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 16 January 2026.
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

Mon 2/3

06:00-22:25

1 stop15h 25m

Ljubljana Joze Pucnik

Mon 9/3

20:10-22:55

1 stop3h 45m

£151

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Fri 13/3

20:15-09:05

1 stop11h 50m

Ljubljana Joze Pucnik

Mon 16/3

20:10-22:55

1 stop3h 45m

£154

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Wed 3/6

13:30-09:00

1 stop18h 30m

Ljubljana Joze Pucnik

Thu 4/6

19:40-09:10

1 stop14h 30m

£156

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Mon 2/2

06:50-12:55

1 stop5h 05m

Ljubljana Joze Pucnik

Mon 9/2

09:45-17:05

1 stop8h 20m

£160

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Sat 21/2

13:45-22:15

1 stop7h 30m

Ljubljana Joze Pucnik

Mon 23/2

20:10-22:55

1 stop3h 45m

£160

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Fri 6/3

08:45-19:30

1 stop9h 45m

Ljubljana Joze Pucnik

Sun 8/3

09:45-13:00

1 stop4h 15m

£160

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Mon 15/6

13:30-09:00

1 stop18h 30m

Ljubljana Joze Pucnik

Sun 21/6

09:35-18:40

1 stop10h 05m

£166

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Sat 2/5

13:30-14:25

1 stop23h 55m

Ljubljana Joze Pucnik

Wed 6/5

09:35-12:30

1 stop27h 55m

£166

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Fri 1/5

20:05-09:25

1 stop12h 20m

Ljubljana Joze Pucnik

Tue 5/5

06:35-10:40

1 stop5h 05m

£168

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Wed 4/2

20:05-13:35

1 stop16h 30m

Ljubljana Joze Pucnik

Sat 7/2

06:30-11:15

1 stop5h 45m

£170

Flights are sorted by cheapest return flights first.

Deals found on 14/1

Showing 1-10 of 23 results
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, 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 £180). 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.

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 16 January 2026.
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
1,174 reviews
Check prices

Boarding

7.5

Overall

7.5

Comfort

7.4

Entertainment

6.9

Crew

8.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
LOT
7.5
Good
1,174 reviews
LOT
7.5
Good
1,174 reviews
Check prices

Boarding

7.5

Overall

7.5

Comfort

7.4

Entertainment

6.9

Crew

8.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
Brussels Airlines
7.2
Good
380 reviews
LOT
7.5
Good
1,174 reviews
Check prices

Boarding

7.5

Overall

7.5

Comfort

7.4

Entertainment

6.9

Crew

8.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
easyJet
6.9
Okay
1,862 reviews
LOT
7.5
Good
1,174 reviews
Check prices

Boarding

7.5

Overall

7.5

Comfort

7.4

Entertainment

6.9

Crew

8.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
Lufthansa
6.8
Okay
7,718 reviews
LOT
7.5
Good
1,174 reviews
Check prices

Boarding

7.5

Overall

7.5

Comfort

7.4

Entertainment

6.9

Crew

8.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
British Airways
6.7
Okay
7,680 reviews
LOT
7.5
Good
1,174 reviews
Check prices

Boarding

7.5

Overall

7.5

Comfort

7.4

Entertainment

6.9

Crew

8.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.

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 11h 50m. Lufthansa provides one of the quickest options available for as low as £154. 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 £189. On average you can expect to pay £273. The most popular route, (London Heathrow - Ljubljana Joze Pucnik), can usually be booked for £142.

  • 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 £180). 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 Heathrow to Slovenia

See prices for flight routes from nearby airports that may be better suited for you.
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Luton to Geneva flights
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Heathrow to Orly flights
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London City to Amsterdam flights
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Top 5 airlines flying from Heathrow to Slovenia

Discover the top 5 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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£93Average£162FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£148Average£287FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LOTCheapest£149Average£241FlexibilityNo cancel feeOn-time81%
Search LOT flights
Brussels AirlinesCheapest£156Average£213FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
LufthansaCheapest£157Average£199FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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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.

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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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