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Cheap flights from Slovenia to London Heathrow Airport from £58

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — LHR
5 May — 12 May1
1 adult

Cheap flight deals from Slovenia to Heathrow

Keep the following information in mind while searching for Slovenia to Heathrow flight deals. Data was last updated 30 April 2025.

Round-trip from

£132

One-way from

£58

Popular in

August

Cheapest in

March

Average price

£161

Good round-trip deal

£147 or less

Good one-way deal

£103 or less
Air Serbia
  • Air Serbia
  • 10/10-12/10
  • 2 total stops
  • 29h 15m total
  • Slovenia to London
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Air Serbia
  • Air Serbia
  • 18/10
  • 1 total stop
  • 5h 10m total
  • Slovenia to London
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Highest demand for flights based on searches. 24% potential increase in price (£42 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Slovenia to London Heathrow.
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Price to beat on a one-way flight from Slovenia to London Heathrow.
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Find flight deals from Slovenia to Heathrow

Cheapest flights from Slovenia to Heathrow
Explore the most affordable flight options available from Slovenia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Fri 10/1020:45LJU - LHR
1 stop16h 45mAir Serbia
Sun 12/1019:25LHR - LJU
1 stop12h 30mAir Serbia
Deal found 29/4£132
Thu 26/618:35LJU - LHR
1 stop4h 00mMultiple Airlines
Mon 30/608:40LHR - LJU
1 stop8h 55mMultiple Airlines
Deal found 30/4£157
Tue 21/1019:20LJU - LHR
1 stop23h 30mSWISS
Thu 30/1018:40LHR - LJU
1 stop26h 50mSWISS
Deal found 29/4£159
Wed 22/1018:35LJU - LHR
1 stop4h 00mBrussels Airlines
Fri 31/1006:50LHR - LJU
1 stop7h 55mBrussels Airlines
Deal found 29/4£160
Fri 3/1021:05LJU - LHR
Nonstop2h 20mBritish Airways
Mon 6/1011:00LHR - LJU
Nonstop2h 15mBritish Airways
Deal found 29/4£171
Thu 10/706:40LJU - LHR
1 stop12h 00mLufthansa
Mon 14/720:25LHR - LJU
1 stop11h 35mLufthansa
Deal found 29/4£175
Wed 2/713:20LJU - LHR
1 stop5h 00mLOT
Wed 9/718:10LHR - LJU
1 stop17h 25mLOT
Deal found 29/4£204
Fri 20/609:00LJU - LHR
1 stop5h 50mKLM
Wed 25/620:55LHR - LJU
1 stop10h 00mKLM
Deal found 28/4£217
Fri 6/620:10LJU - LHR
1 stop14h 40mTurkish Airlines
Mon 9/616:40LHR - LJU
1 stop14h 50mTurkish Airlines
Deal found 30/4£290

Cheapflights Fare Finder

Customise your flight search to find flights from Slovenia to Heathrow 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 30 April 2025.
Use the filters below to find and compare flights from Slovenia to London Heathrow Airport that are best for you.

Fly from

Slovenia

Fly to

Heathrow

Route

Depart

Return

Price

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 10/10

20:45-12:30

1 stop16h 45m

London Heathrow

Sun 12/10

19:25-08:55

1 stop12h 30m

£132

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 26/6

18:35-21:35

1 stop4h 00m

London Heathrow

Mon 30/6

08:40-18:35

1 stop8h 55m

£157

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Tue 21/10

19:20-16:25

1 stop22h 05m

London Heathrow

Wed 29/10

06:00-14:05

1 stop7h 05m

£159

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Wed 22/10

18:35-21:35

1 stop4h 00m

London Heathrow

Wed 29/10

11:05-15:45

1 stop3h 40m

£160

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 3/10

21:05-22:25

Nonstop2h 20m

London Heathrow

Mon 6/10

11:00-14:15

Nonstop2h 15m

£171

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 10/7

06:40-17:40

1 stop12h 00m

London Heathrow

Mon 14/7

20:25-09:00

1 stop11h 35m

£175

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Wed 2/7

13:20-17:20

1 stop5h 00m

London Heathrow

Wed 9/7

18:10-12:35

1 stop17h 25m

£204

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 20/6

09:00-13:50

1 stop5h 50m

London Heathrow

Wed 25/6

20:55-07:55

1 stop10h 00m

£217

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 6/6

20:10-09:50

1 stop14h 40m

London Heathrow

Mon 9/6

16:40-08:30

1 stop14h 50m

£290

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Sat 18/10

14:55-19:05

1 stop5h 10m

£58

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 19 results
1
2

Best time to book a flight from Slovenia to Heathrow

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

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

Currently, January is the cheapest month in which you can book a flight from Slovenia to London Heathrow Airport (average of £112). Flying from Slovenia to London Heathrow Airport in August is currently the most expensive (average of £164). 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 SI to LHR?

Find hourly flight availability from Slovenia to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.

It’s typically best to fly out from Slovenia to London Heathrow Airport at midday. Doing so could potentially save you 13% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 30 April 2025.
See what other customers who have flown with KLM, LOT and SWISS from Slovenia to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,334 reviews
Check prices

Boarding

7.8

Food

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,334 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Boarding

7.8

Food

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
LOT
7.6
Good
1,069 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Boarding

7.8

Food

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,588 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Boarding

7.8

Food

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Qatar Airways
7.4
Good
3,563 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Boarding

7.8

Food

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Turkish Airlines
7.3
Good
3,790 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Boarding

7.8

Food

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

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

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

    £58 is the cheapest one-way deal found within the past few days, from Air Serbia. You may also be able to find cheap deals on British Airways and KLM, with prices starting from £68 and £81, respectively.

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

    While on average a flight from Slovenia to London Heathrow Airport is generally £205, our data shows the cheapest flight currently is £90. When looking at the most popular route, (Ljubljana Joze Pucnik - London Heathrow), you can expect to pay £159 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Slovenia to London Heathrow Airport (average of £112). Flying from Slovenia to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Slovenia?

Book flights to Slovenia if you plan to visit one of these locations
Deal
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Gatwick
Luton
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Northampton
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Ilford
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Wembley
Swindon
Folkestone
Maidstone
Winchester

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