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Cheap flights from Slovenia to London Heathrow Airport from £57

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — LHR
2 Apr — 9 Apr1
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 28 March 2025.

Round-trip from

£152

One-way from

£57

Popular in

August

Cheapest in

March

Average price

£99

Good round-trip deal

£118 or less

Good one-way deal

£101 or less
SWISS
  • SWISS
  • 8/5-13/5
  • 2 total stops
  • 15h 25m total
  • Slovenia to London
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Air Serbia
  • Air Serbia
  • 23/9
  • 1 total stop
  • 16h 45m total
  • Slovenia to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£46 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in March 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 28 March 2025.

Thu 2/1020:45LJU - LHR
1 stop16h 45mAir Serbia
Sat 4/1013:30LHR - LJU
1 stop23h 55mAir Serbia
Deal found 27/3£128
Thu 8/510:50LJU - LHR
1 stop6h 35mSWISS
Tue 13/508:45LHR - LJU
1 stop8h 50mSWISS
Deal found 28/3£152
Thu 21/818:35LJU - LHR
1 stop4h 00mBrussels Airlines
Mon 25/811:05LHR - LJU
1 stop5h 40mBrussels Airlines
Deal found 28/3£154
Thu 8/510:50LJU - LHR
1 stop8h 00mMultiple Airlines
Tue 13/513:30LHR - LJU
1 stop7h 40mMultiple Airlines
Deal found 27/3£156
Mon 8/910:15LJU - LHR
1 stop7h 25mLufthansa
Sat 13/909:00LHR - LJU
1 stop9h 25mLufthansa
Deal found 27/3£161
Fri 18/421:05LJU - LHR
Nonstop2h 20mBritish Airways
Mon 21/411:00LHR - LJU
Nonstop2h 15mBritish Airways
Deal found 27/3£175
Wed 20/813:20LJU - LHR
1 stop21h 00mLOT
Sun 24/810:15LHR - LJU
1 stop5h 05mLOT
Deal found 28/3£197
Wed 4/609:25LJU - LHR
1 stop8h 15mTurkish Airlines
Fri 6/622:25LHR - LJU
1 stop9h 05mTurkish Airlines
Deal found 27/3£286
Sat 23/812:35LJU - LHR
1 stop9h 20mKLM
Mon 25/820:55LHR - LJU
2 stops13h 40mKLM
Deal found 28/3£360

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 28 March 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

Thu 8/5

10:50-16:25

1 stop6h 35m

London Heathrow

Tue 13/5

08:45-18:35

1 stop8h 50m

£152

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 21/8

18:35-21:35

1 stop4h 00m

London Heathrow

Mon 25/8

11:05-17:45

1 stop5h 40m

£154

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 8/5

10:50-17:50

1 stop8h 00m

London Heathrow

Tue 13/5

13:30-22:10

1 stop7h 40m

£156

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Mon 8/9

10:15-16:40

1 stop7h 25m

London Heathrow

Sat 13/9

09:00-19:25

1 stop9h 25m

£161

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 18/4

21:05-22:25

Nonstop2h 20m

London Heathrow

Mon 21/4

11:00-14:15

Nonstop2h 15m

£175

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Wed 20/8

13:20-09:20

1 stop21h 00m

London Heathrow

Sun 24/8

10:15-16:20

1 stop5h 05m

£197

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Tue 8/4

20:45-12:30

1 stop16h 45m

London Heathrow

Sat 12/4

19:55-08:55

1 stop12h 00m

£202

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Wed 4/6

09:25-16:40

1 stop8h 15m

London Heathrow

Fri 6/6

22:25-08:30

1 stop9h 05m

£286

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Sat 23/8

12:35-20:55

1 stop9h 20m

London Heathrow

Mon 25/8

20:55-11:35

2 stops13h 40m

£360

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Wed 24/9

20:45-12:30

1 stop16h 45m

£57

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Showing 1-10 of 20 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 28 March 2025.

It’s typically best to fly out from Slovenia to London Heathrow Airport at midday. Doing so could potentially save you 14% 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 28 March 2025.
KLM
7.8
Good
1,321 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

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
1,321 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

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
1,063 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

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
1,570 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

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
3,538 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

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
3,744 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Food

7.3

Entertainment

7.1

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

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?

    £57 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 KLM and British Airways, with prices starting from £101 and £104, 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 £128, our data shows the cheapest flight currently is £50. When looking at the most popular route, (Ljubljana Joze Pucnik - London Heathrow), you can expect to pay £146 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
Hounslow
Deal
Milton Keynes
Gatwick
Croydon
Luton
Slough
Eastbourne
Wembley
Northampton
Swindon
Hayes
Ilford
Crawley
Southend-on-Sea
Winchester
Maidstone
Ipswich
Watford
Southall

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Fly with Cheapflights

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

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Yes! Cheapflights helps users easily find flights from Slovenia to Heathrow with no change fees.

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Yes, Cheapflights offers price alerts on Slovenia to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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