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Cheap flights from Slovenia to London from £27

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — LON
14 Jul — 21 Jul1
1 adult

Cheap flight deals from Slovenia to London

Keep the following information in mind while searching for Slovenia to London flight deals. Data was last updated 9 July 2025.

Round-trip from

£85

One-way from

£27

Popular in

August

Cheapest in

March

Average price

£226

Good round-trip deal

£115 or less

Good one-way deal

£70 or less
easyJet
  • easyJet
  • 6/12-8/12
  • Nonstop
  • 4h 35m total
  • Slovenia to London
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easyJet
  • easyJet
  • 13/12
  • Nonstop
  • 2h 25m total
  • Slovenia to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£38 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 July 2025
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Price to beat on a round-trip flight from Slovenia to London (LON).
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Price to beat on a one-way flight from Slovenia to London (LON).
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Find flight deals from Slovenia to London

Cheapest flights from Slovenia to London
Explore the most affordable flight options available from Slovenia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 July 2025.

Sat 6/1217:10LJU - LGW
Nonstop2h 25measyJet
Mon 8/1216:00LGW - LJU
Nonstop2h 10measyJet
Deal found 8/7£85
Tue 16/920:45LJU - LHR
1 stop16h 45mAir Serbia
Sat 20/913:30LHR - LJU
1 stop18h 30mAir Serbia
Deal found 7/7£136
Wed 19/1106:30LJU - LGW
1 stop12h 20mSWISS
Wed 26/1118:40LGW - LJU
1 stop17h 55mSWISS
Deal found 7/7£159
Tue 28/1006:30LJU - LHR
1 stop7h 30mSWISS
Sun 2/1105:00LHR - LJU
1 stop15h 30mSWISS
Deal found 8/7£159
Fri 21/1116:30LJU - LHR
1 stop5h 50mBrussels Airlines
Wed 26/1106:50LHR - LJU
1 stop7h 55mBrussels Airlines
Deal found 8/7£160
Sat 6/1213:25LJU - LHR
1 stop4h 40mMultiple Airlines
Mon 8/1211:05LHR - LJU
1 stop3h 40mMultiple Airlines
Deal found 8/7£164
Thu 20/1113:25LJU - LHR
1 stop4h 40mLufthansa
Thu 27/1107:40LHR - LJU
1 stop10h 40mLufthansa
Deal found 7/7£165
Fri 21/1110:55LJU - LGW
Nonstop2h 25mMultiple Airlines
Wed 26/1118:40LGW - LJU
1 stop17h 55mMultiple Airlines
Deal found 8/7£167
Thu 27/1112:50LJU - LHR
1 stop4h 15mKLM
Sat 29/1106:30LHR - LJU
1 stop4h 50mKLM
Deal found 7/7£170
Sat 29/1106:30LJU - LCY
1 stop6h 10mSWISS
Tue 2/1209:15LCY - LJU
1 stop3h 50mSWISS
Deal found 7/7£179
Wed 19/1112:50LJU - LCY
1 stop5h 30mKLM
Fri 28/1120:05LCY - LJU
1 stop15h 15mKLM
Deal found 7/7£188
Tue 16/920:45LJU - LTN
1 stop13h 30mMultiple Airlines
Sat 20/906:30LTN - LJU
1 stop6h 55mMultiple Airlines
Deal found 7/7£201

Cheapflights Fare Finder

Customise your flight search to find flights from Slovenia to London 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 9 July 2025.
Use the filters below to find and compare flights from Slovenia to London that are best for you.

Fly from

Slovenia

Fly to

London

Route

Depart

Return

Price

LjubljanaLondon

LJU - LGW

LJULGW

Ljubljana Joze Pucnik

Sat 6/12

17:10-18:35

Nonstop2h 25m

London Gatwick

Mon 8/12

16:00-19:10

Nonstop2h 10m

£85

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Tue 16/9

20:45-12:30

1 stop16h 45m

London Heathrow

Sat 20/9

13:30-09:00

1 stop18h 30m

£136

LjubljanaLondon

LJU - LGW

LJULGW

Ljubljana Joze Pucnik

Wed 19/11

06:30-17:50

1 stop12h 20m

London Gatwick

Sat 22/11

18:40-22:30

1 stop26h 50m

£159

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Tue 28/10

06:30-13:00

1 stop7h 30m

London Heathrow

Sun 2/11

05:00-21:30

1 stop15h 30m

£159

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 21/11

16:30-21:20

1 stop5h 50m

London Heathrow

Wed 26/11

06:50-15:45

1 stop7h 55m

£160

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Sat 6/12

13:25-17:05

1 stop4h 40m

London Heathrow

Mon 8/12

11:05-15:45

1 stop3h 40m

£164

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 20/11

13:25-17:05

1 stop4h 40m

London Heathrow

Thu 27/11

07:40-19:20

1 stop10h 40m

£165

LjubljanaLondon

LJU - LGW

LJULGW

Ljubljana Joze Pucnik

Fri 21/11

10:55-12:20

Nonstop2h 25m

London Gatwick

Wed 26/11

18:40-13:35

1 stop17h 55m

£167

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 27/11

12:50-16:05

1 stop4h 15m

London Heathrow

Wed 3/12

06:30-12:20

1 stop4h 50m

£170

LjubljanaLondon

LJU - LCY

LJULCY

Ljubljana Joze Pucnik

Sat 29/11

06:30-11:40

1 stop6h 10m

London City

Tue 2/12

09:15-14:05

1 stop3h 50m

£179

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 36 results
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Best time to book a flight from Slovenia to London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, January is the cheapest month in which you can book a flight from Slovenia to London (average of £112). Flying from Slovenia to London 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 LON?

Find hourly flight availability from Slovenia to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 July 2025.

When flying from Slovenia to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 12% versus a flight at midday.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 9 July 2025.
Read through reviews of airlines operating flights from Slovenia to London, such as KLM, LOT, andSWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,370 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,370 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
LOT
7.6
Good
1,093 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
SWISS
7.5
Good
1,652 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Brussels Airlines
7.3
Good
351 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
easyJet
6.9
Okay
1,817 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Slovenia to London. 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 one-way?

    One-way options have recently been found by users for as low as £27 on easyJet. Other airlines that offer cheap prices include Air Serbia from £61 and KLM from £90 one-way.

  • What are the most popular routes from Slovenia to London?

    While some choose either Ljubljana Joze Pucnik - London Heathrow or Ljubljana Joze Pucnik - London City, Ljubljana Joze Pucnik - London Gatwick is the most popular route from Slovenia to London.

  • What are the cheapest flights from Slovenia to London?

    Looking at all options, your cheapest flight can be booked for £146. While the most popular route (Ljubljana Joze Pucnik - London Gatwick) can be booked for £88 on average our data indicates £225 when flying from Slovenia to London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Slovenia to London 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?

    Currently, January is the cheapest month in which you can book a flight from Slovenia to London (average of £112). Flying from Slovenia to London 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
Croydon
Milton Keynes
Deal
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Maidstone
Guildford
Chichester

Browse thousands of different options on Cheapflights for your next trip

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Fly with Cheapflights

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

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Slovenia.

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

Yes, we can. To see specific flights from Slovenia to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Slovenia today and book when prices fit your budget.

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